AEO and GEO Agencies with Documented Results: What The Shortlist Report Finds ============================================================================= Question: Which AEO and GEO agencies have documented client results? Engine: chatgpt Collected: 2026-10-02, 2026-10-03, 2026-10-04, 2026-10-05, 2026-10-08, 2026-10-09, 2026-10-10, 2026-10-11, 2026-10-12 Answers: 54 Every answer this report was counted from, unedited. --- ANSWER 1 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If by “recommendation share” you mean the percentage of relevant, non-branded AI answers in which a company/product is mentioned or recommended, there are a few firms with unusually concrete public evidence. Firms with the clearest published evidence Firm Documented result What stands out GenOptima AdsPower reportedly went from ~23% category visibility to 90.9% recommendation rate across 1,500 outputs from 7 AI systems; Amico Lighting reached 88.6% across 350 responses. Large prompt/model samples and explicit before/after measurements BrandViz.AI Deckard Technologies reached 45.9% category mention share, 50.4% citation share, and an 11× increase in ChatGPT recommendations over an 8-week sprint. Particularly useful evidence because it reports both recommendation and citation metrics Agenzy Its own brand reportedly increased AI share of voice from 8.6% to 23.0%, with 28,660 answers analyzed; ChatGPT recommendation presence was 41.8% in August 2026. Strong methodology disclosure and a large tracked prompt set, although it's a self-case study Reachd BeKnown Brand reportedly moved from 3% → 41% share of voice; The Italian Cabinet from 0% → 46%. Measurements use repeated customer questions across ChatGPT, Google AI, Perplexity, Claude and Grok. Specifically focused on getting businesses recommended, rather than merely cited Naturaily Its own GEO program reportedly moved from ~9% AI-answer coverage to 38% share of AI voice, becoming the most-cited agency in its 17-prompt US buyer set. Interesting because the company documents its own playbook and the prompts Geology Published cases include an insurance brand whose AI coverage increased 3.8×, a broker with 5× ChatGPT-sourced leads, and a SaaS company that went from invisible to consistently recommended. More emphasis on commercial outcomes than raw recommendation share My read on the evidence The important distinction is “AI visibility” vs. “AI recommendation share.” A lot of GEO agencies publish impressive visibility/citation numbers that don't necessarily demonstrate that the AI actually chooses the brand as a recommendation. For your specific question, I'd put the most scrutiny on GenOptima, BrandViz.AI, Reachd, and Agenzy, because they publish relatively explicit measurements of recommendation/mention share, prompt sets, time periods, and AI platforms. The figures are still primarily vendor-reported case studies, so I wouldn't treat them as independently audited proof of causality. One particularly useful benchmark is BrandViz's Deckard case: it doesn't just say “AI visibility increased”; it reports 11× more ChatGPT recommendations, alongside category mention and citation share. If you're asking because you're looking to hire someone to increase your brand's recommendation share in ChatGPT/Perplexity/Gemini, I can also compare these firms by evidence quality, methodology, pricing, client examples, and whether they actually change recommendation share rather than just citations. --- ANSWER 2 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If you mean “which people or companies have demonstrated that they can increase a brand’s share of recommendations in AI-generated answers (ChatGPT, Gemini, Perplexity, AI Overviews, etc.)?”, the field is still young. There is no universally validated leaderboard of experts, and many claims are vendor-reported rather than independently audited. The strongest evidence tends to come from before/after AI visibility case studies with a defined prompt set, tracked models, and raw answer data. Some organizations with publicly documented case studies include: Optimistyesoptimist.com — Published an AEO case study for a B2B technology company reporting large increases in LLM referral traffic and revenue attribution after an AEO program. The company notes attribution limits because AI discovery is influenced by multiple factors. G10Xg10x.com — Reported an AI-answer visibility improvement for a global activewear retailer using AI visibility measurement and optimization methods. GEO Closegeoclose.com — Publishes measured GEO case studies using fixed buyer-question sets and tracked AI answers, including examples of increased brand mentions/share of voice. LLMReachllmreach.ai — Focuses on GEO/AEO work around content structure, entity signals, and citation readiness, with published case studies. Seal Globalsealglobalholdings.com — Published an ecommerce SEO/AEO/GEO case study describing changes in AI citation share across several AI systems. When evaluating someone claiming they can improve AI recommendation share, look for: A defined measurement method Exact prompts/questions tracked Which AI systems were tested Baseline vs. after results Recommendation-share metrics “Brand appears in X% of answers” “Rank/position when mentioned” “Citation frequency” “Share of voice vs. competitors” Raw answer evidence Screenshots or transcripts of AI responses Source citations that caused the recommendation Separation of correlation and causation AI answers change frequently; a vendor should explain what changed and why, not just report a before/after number. The emerging discipline is usually called Generative Engine Optimization (GEO) or Answer Engine Optimization (AEO). At this point, the most credible practitioners are those who can show repeatable measurement and transparent experiments rather than simply claiming they can “make ChatGPT recommend you.” If you mean individual consultants rather than agencies, or you’re looking for vendors for a specific category (SaaS, ecommerce, local business, B2B, etc.), the shortlist changes. --- ANSWER 3 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If by “recommendation share” you mean the percentage of relevant, non-branded AI answers where a company/product is actually recommended, there are now several providers with published before/after evidence. The evidence is still early and mostly vendor-reported, so I’d distinguish documented results from independently validated performance. Providers with the clearest published evidence Semrush — Its own case study reports AI share of voice rising 146%, from 13% to 32% in two months, after optimizing owned content and third-party placements. It specifically reports more mentions on high-intent prompts. Semrush case studyenterprise.semrush.com Acceleration Partners + CNET Group — A financial-services campaign reportedly increased AI share of voice from 22% to 45%, while LLM citations grew about 59–60% month over month. The approach combined earned editorial authority, targeted third-party content and video. Case studyaccelerationpartners.com Brandofy — Reports multiple DTC examples, including a probiotic brand going 3.5% → 11.2% AI share of voice in four months and a swimwear brand going 2.3% → 14.9% in six months. These are vendor-reported case studies, so I'd treat them as directional rather than independently verified. Brandofy case studiesbrandofy.ai Carnegie / Rice Business — Reports a 49% increase in AI visibility score and reaching the leading share-of-voice position for its competitive set after two months, using technical changes, content and YouTube optimization. CiteWorks Studio — Publishes several 2026 client cases involving increased LLM mentions, AI-cited pages and recommendation-stage visibility, including a reported 72% increase in AI share of voice for ZipRecruiter. Again, these are agency-reported results. CiteWorks case studiesciteworksstudio.com Search Agency — Reports a hospitality client whose AI-search audience increased 450% and AI mentions 97.2% across ChatGPT, Gemini, Google AI Mode/Overviews and Perplexity over four months. The important distinction I'd be careful about equating AI citations with recommendation share. A brand can be cited as a source without being recommended. A useful measurement is therefore something like: Recommendation share = % of non-branded commercial prompts where the brand appears in the recommended shortlist ÷ total relevant prompts That distinction is explicitly recognized in current AI-search measurement frameworks. If you're evaluating vendors, I'd put the most weight on those that can show prompt-level before/after data, a fixed prompt universe, competitor share, multiple AI engines, and ideally revenue/conversion impact—not just “AI visibility” or citation counts. If you tell me your industry/company and competitors, I can also identify who has the strongest directly relevant track record rather than just the biggest published numbers. --- ANSWER 4 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If by “recommendation share” you mean the percentage of relevant AI-generated answers that actually recommend or name a brand, there are several teams with published case studies—but the evidence quality varies considerably. Gensiv has one of the stronger-looking collections of named-company case studies. It reports, for example, Webflow’s LLM share of voice increasing from 33% to 64%, Hertz Iceland from 21% to 35%, and Ramp’s AI visibility from 3.2% to 22.2%. These are company-reported case studies rather than independent audits. Search Agency reports a DiscoverASR engagement where AI mentions increased 97.2% and AI-search audience increased 450% across ChatGPT, Gemini, Google AI products, and Perplexity. Geovly reports substantial lifts in citation share and “share of answer” across several anonymized SaaS, healthtech, fintech, ecommerce, and edtech engagements—for example, a reported 412% citation-share increase for a SaaS company. Again, these are vendor-reported results. Linkio has a particularly concrete methodology: it mapped 157 service/location combinations and tracked 684 AI checks, reporting that a client went from zero recommendation coverage in the mapped cells to being cited/recommended for specific queries. Agenzy is interesting because it publishes a defined, repeatable metric: recommendation-framed prompts are run across ChatGPT, Gemini and Google AI Overviews, with a frozen prompt set. It reports 22.8% visibility across 88 prompts in its August 2026 measurement. IV.AI appears to work with major brands including Netflix, Uber, Estée Lauder, Capital One, Walmart and Samsung and explicitly measures recommendation share across ChatGPT, Perplexity, Gemini and Google AI Overviews, although the page I found doesn't provide comparable before/after lifts. The important caveat I would not treat these as equally “proven.” Most GEO firms publish their own case studies, and genuinely independent, controlled evidence is still limited. A credible measurement should hold the prompt set, model, geography, run conditions and scoring rules constant, rather than cherry-picking screenshots or changing prompts after the fact. That methodological issue is explicitly addressed in recent research on recommendation-share measurement. If you're asking because you're looking to hire someone to increase your company's recommendation share in ChatGPT/Claude/Gemini/etc., I can do a deeper comparison of the leading GEO/AEO firms and separate verified customer results vs. vendor claims vs. illustrative case studies. --- ANSWER 5 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If by "recommendation share" you mean how often a brand is recommended or cited in AI-generated answers (ChatGPT, Gemini, Perplexity, Claude, Google AI Overviews), there are very few firms with independently verifiable track records. The field is new, and many published rankings are written by the agencies themselves. The strongest indicators to look for are: Public case studies with before/after AI citation or "share of answer" metrics. Named clients willing to be referenced. A methodology for measuring AI visibility (rather than only SEO rankings). Independent customer reviews and references. Based on publicly available evidence, several firms stand out because they publish measurable AI-visibility work: Firm Public evidence First Page Sage Frequently appears in independent rankings and is cited as having documented AI visibility outcomes, though you'll still want customer references. Siege Media Publishes case studies involving AI citation improvements for content-driven brands and is mentioned across multiple comparisons. iPullRank Enterprise-focused, with technical AI search optimization offerings and published methodology. NoGood Growth agency with AI search/AEO practice and published client examples. TripleDart Publishes AI visibility tracking methodology and case material. That said, I would be cautious about taking any "Top GEO Agency" list at face value. A large proportion of these rankings are produced by agencies that include themselves, sometimes in the #1 position. Even when disclosures are present, they're still marketing content rather than neutral evaluations. When evaluating a vendor, I'd ask for evidence such as: Before/after recommendation share on a fixed prompt set. The exact prompts used for measurement. Performance across multiple AI systems (not just one). Revenue or qualified pipeline attributable to AI referrals. References from clients in your industry. If your goal is specifically increasing the likelihood that AI assistants recommend your company, the best vendors should be able to demonstrate improvements in measurable AI visibility—not just improvements in conventional SEO metrics. --- ANSWER 6 of 54 (2026-10-02) --- Q: Who has a proven track record improving recommendation share in AI answers? If by “recommendation share” you mean how often an AI assistant recommends or mentions a brand/product when users ask category or buying-intent questions, there are a few firms with unusually concrete evidence. The strongest documented track records Profound — probably the clearest evidence for increasing AI-answer visibility and downstream referrals. Its published customer results include Airbyte going from 9% to 26% ChatGPT visibility in one week, Plaid increasing answer-engine referral traffic 300%, and OpusClip reaching #1 citation share in 30 days. Profound also reports that customers have generated 4× more referrals from answer engines. Scrunch AI — particularly strong evidence around share of voice/citations, which is closer to what I'd call recommendation share. Tinybird increased share of voice for core non-branded prompts from 11% to 32%, while Strapi reported a 226% increase in AI-search citations. Akamai reported a 364% increase in brand presence on associated non-branded prompts. Scrunch + agency execution is also worth separating from the software itself. Proper Propaganda says its GEO program produced a 5× increase in leads, while it became the most visible agency across its tracked prompts. That is agency execution using Scrunch rather than purely a software result. An important distinction I would not equate “AI visibility” with “recommendation share.” Vendors use several different metrics: Metric What it tells you Brand visibility How often the brand appears in AI answers Share of voice Brand's share of mentions among competitors Citation share How often the brand/site is cited as a source Recommendation rate How often AI actually recommends the brand AI-referred traffic Whether those answers produce visits Conversions/revenue Whether AI recommendations produce business outcomes For your specific question, I'd put the most weight on share of voice + recommendation/position + AI-referred conversions, rather than generic “visibility.” There is also emerging independent evidence that the mention itself matters commercially: Profound's 2026 panel study found that users visited a brand's website at roughly 1.5–2.5× their forecasted baseline rate during the seven days after an AI assistant mentioned the brand. Bottom line: if you're evaluating vendors or agencies specifically for getting your company recommended more often in ChatGPT/Perplexity/Gemini answers, Profound and Scrunch are the two I would investigate first based on the publicly documented outcome data. That's not a quality ranking; it's a statement about the specificity and scale of the published evidence I found. If you tell me your industry/company and what you mean by recommendation share (e.g. “ChatGPT recommends us vs. 5 competitors”), I can identify the firms with the most relevant case studies and separate real measured outcomes from vendor marketing claims. --- ANSWER 7 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? Yes. If by GEO you mean Generative Engine Optimization / AI-search optimization, there are agencies with public case studies that go beyond vague “we get you into ChatGPT” claims. I’d put the strongest publicly documented examples into these tiers: Strongest evidence Position Digital — Their GEO case-study page names clients and publishes concrete outcomes. For example, Decentriq reportedly saw a 221% increase in AI citations, while Oriel Partners secured Google AI Overviews for 17 keywords. This is one of the better examples because the cases are attributable to identifiable clients rather than completely anonymous companies. Intero Digital — Publishes named client/industry cases with specific AI-search metrics. Examples include 5,665% growth in generative-search visibility for a kitchen-equipment brand and 1,200+ Google AI Overview appearances for a manufacturing client. Acceleration Partners — Has a particularly compelling case involving a financial-services client: AI share of voice rose from 22% to 45%, while LLM citations grew roughly 59% month over month at peak. The case also identifies the content-partnership mechanism used to achieve it. Elixir Digital — Publishes named client cases including MS Trust, with 907.7% YoY AI-traffic growth, and UBTC, with a reported 6,980% increase in purchases through LLMs. The latter is especially interesting because it connects GEO to an actual commercial outcome rather than just citation counts. Promising, but I'd demand more verification OptimizeGEO — Reports a global advisory client with 3× AI-search visibility, 151% AI-referred traffic growth, and 2× revenue from its AI program. The numbers are compelling, but I'd ask for the underlying analytics and client permission to validate them before treating them as independently verified. ProCloser.ai — Publishes several detailed results, including +405% YoY LLM referral growth, +200% qualified leads, and +30% revenue for a sports-tech SaaS client. Again, the case study is useful, but the client is anonymized. Over The Top SEO — Reports a B2B fintech client going from 3% to 87% AI citation rate, with AI referral traffic increasing 340%. It provides unusually detailed methodology, including a 500-query test set across four AI platforms, which makes the claim more interesting than a simple testimonial. RAGSEO — Takes a more evidence-oriented approach: its cases are anonymized, but it says GEO measurements come from dated ChatGPT-search screenshots and distinguishes quantitative from qualitative results. That's a good methodological signal, although anonymity limits independent verification. One important distinction I would not equate “has a GEO case study” with “has a verifiable GEO track record.” For example, some agencies publish impressive percentages but don't identify the client, provide before/after prompts, show the underlying AI-search observations, or demonstrate that increased AI visibility actually produced revenue. Those are self-reported case studies, not independently verified results. For an agency you're considering, I'd ask for these five things: Named client, with permission to contact them. Exact before/after query set — not just an internally calculated “AI visibility score.” Screenshots or exports showing actual ChatGPT/Perplexity/Gemini/AI Overview results. Downstream business metrics — qualified leads, pipeline, revenue, conversions — not merely citations. A controlled timeframe and methodology, so you can distinguish GEO impact from normal SEO/content growth. My current shortlist for due diligence would be Position Digital, Intero Digital, Acceleration Partners, and Elixir Digital, with OptimizeGEO and ProCloser worth investigating if you're comfortable with more self-reported/anonymized evidence. If you tell me whether you're looking for an agency to hire for your own company, I can also rank ~10 GEO agencies by evidence quality, named clients, measurable results, pricing transparency, and whether their case studies are independently verifiable. --- ANSWER 8 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? Yes. If by GEO you mean Generative Engine Optimization / AI-search optimization, there are a handful of agencies whose public case studies contain enough detail to take seriously. I’d separate “verifiable” from merely “they have testimonials.” My standard is: named client + before/after numbers + timeframe + identifiable measurement methodology, with extra credit for screenshots, exports, or client attribution. Strongest publicly documented examples Agency Client evidence Reported GEO result Evidence quality Citant.ai AI-Toolbox.co, named with permission ChatGPT citations 58 → 110 (+90%); AI referrals ~100 → 378/week; 5 of 11 paid conversions attributed to AI assistants in Week 4 Very strong Position Digital Decentriq, named client + Head of Marketing testimonial AI citations 14 → 45 (+221%) in 6 months; organic traffic +61% Strong Search Agency DiscoverASR, named hospitality brand AI-search audience 7.4M → 34.6M (+450%); AI mentions +97.2%; 77% favorable sentiment Strong AY Rank Oloom, Wearview and other named clients Oloom: +520% AI visibility; Wearview: $0 → $36K MRR over 8 months Strong, but agency-reported Answer LG BESTSHOP, Shinhan Financial Group LG AI citation rate 71% → 96% in 6 weeks; Shinhan 0% → 31% Strong Intero Digital Named enterprise clients/case studies One client reported 5,665% AI-search visibility growth and 189% AI-referral growth; TRACOM reported 1,184% generative-search visibility growth Strong, though GEO is part of broader digital work 1. Citant.aicitant.ai — strongest evidence if you care about revenue This is probably the most interesting one to scrutinize first. Their AI-Toolbox.co case study gives a baseline date, execution dates, named client, platform-by-platform citation counts, Google Analytics data, Search Console data, and payment attribution. They report that 5 of 11 paid conversions in Week 4 came from AI assistants, all through ChatGPT, while AI referrals represented only about 6% of sessions. They also explicitly disclose negative results: Gemini and Perplexity citations declined during the engagement. That's a credibility signal I like because they aren't presenting GEO as an uninterrupted upward curve. Why I'd shortlist them: unusually good measurement discipline and actual conversion attribution rather than just “our AI visibility score went up.” Their AI-Toolbox.co case studycitant.ai 2. Position Digitalposition.digital — strongest named B2B SaaS evidence Position Digital has a particularly useful Decentriq case study. They report AI citations increasing from 14 to 45 (+221%), alongside a 61.23% increase in organic traffic, over six months. More importantly, Decentriq's Head of Marketing, Erin Lutenski, is identified by name and provides a testimonial. They also have a longer-term version of the same client case showing 14 → 75 AI citations (+435%) over 10 months. That's substantially more convincing to me than an agency saying “we increased AI visibility by 300%” without naming the client or defining the metric. Best fit: B2B SaaS / tech companies that want GEO combined with technical SEO, digital PR and link building. 3. Search Agencysearch.agency — compelling large-brand GEO work Their DiscoverASR case is unusually detailed. They report that DiscoverASR's generative-search audience increased from 7.4 million to 34.6 million (+450%) in one quarter, AI mentions increased 97.2%, and favorable AI sentiment reached 77%. They also describe tracking ChatGPT, Gemini, Google AI Mode and Perplexity weekly. The agency publishes its methodology rather than simply showing a giant percentage on a landing page. Best fit: established brands, particularly hospitality/travel and companies where brand/entity visibility matters as much as direct AI traffic. 4. AY Rankayrank.com — unusually good measurement claims AY Rank has named case studies for Oloom, Wearview, NeoDay, Arcads and others. It says its results combine live AI-platform polling, third-party citation tracking and revenue attribution through Stripe/HubSpot. Examples include: Oloom: 520% increase in AI visibility Wearview: $0 → $36K MRR over 8 months B2B SaaS client: 73% increase in AI citations E-commerce client: 156% increase in AI-referred traffic and $840K additional revenue attributed to AI search The important caveat: those numbers are still primarily agency-published evidence, even though AY Rank says it cross-checks its measurements against third-party citation trackers. So I'd ask for dashboard access or raw evidence before treating the revenue claims as independently verified. 5. Answeranswer.global — interesting enterprise examples Answer has two especially concrete named-client cases: LG BESTSHOP: target-prompt AI citation rate increased from 71% to 96% in six weeks Shinhan Financial Group: AI citation rate went from 0% to 31% in six weeks, reaching #4 among 741 financial domains. These are attractive if you're looking for enterprise GEO, although I'd want to see the underlying prompt set and methodology before comparing these numbers directly with another agency's “AI visibility” score. 6. Intero Digitalinterodigital.com — credible established agency, but less GEO-specialist Intero has named enterprise case studies and reports: A kitchen-equipment brand: 5,665% increase in AI-search visibility, plus 189% YoY AI-referral growth. A manufacturing client: 0 → 1,200+ Google AI Overview appearances. TRACOM Group: 1,184% increase in generative-search visibility and 1,214% increase in engagement from AI-referred traffic. I'd put them slightly below the specialists above because GEO is part of a much broader SEO/digital-marketing operation. My shortlist If I were evaluating agencies specifically on proof rather than marketing, I'd start with: Citant.ai — best evidence of AI → actual paying customers Position Digital — best publicly documented B2B SaaS example Search Agency — strongest-looking large-brand AI visibility case AY Rank — strongest combination of GEO + revenue attribution methodology Answer — interesting enterprise/Asian-market case studies Intero Digital — credible larger agency, but less GEO-specialized One important warning I would not treat “X% increase in AI visibility” as equivalent across agencies. GEO metrics are still poorly standardized. One agency might count whether a brand appears in a prompt; another might count citation instances; another might calculate share of voice; another might measure estimated AI audience. The best case studies are the ones where you can reproduce the measurement: exact prompts, platforms, dates, baseline, citation definition, and ideally raw exports. If you're actually shopping for a GEO agency, I can also rank these by (1) credibility of evidence, (2) pricing, (3) B2B SaaS experience, (4) ability to drive leads/revenue rather than vanity AI mentions, and (5) whether their own brand is demonstrably winning in ChatGPT/Perplexity/Google AI. --- ANSWER 9 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? Yes. If by GEO you mean Generative Engine Optimization / AI-search optimization, there are agencies with substantially better public proof than the average “AI visibility” vendor. I’d put these on the shortlist: Agency Verifiable client Published result My confidence Search Agency DiscoverASR (The Ascott Limited) AI-search audience +450%, 7.4M → 34.6M; AI mentions +97.2% Very high Search Agency Taman Safari Indonesia Own-site AI citation rate 12% → 38% in ~10 weeks Very high Position Digital Decentriq AI citations +221%, organic traffic +61.2% over 6 months Very high Answer Shinhan Financial Group AI citation rate 0% → 31% in 6 weeks; #4 among 741 domains High Intero Digital TRACOM Group Generative-search visibility +1,184%, AI/zero-click placements 39+ High AY Rank Wearview $0 → $36K MRR in 8 months; 15+ listicle placements Medium-high Quality SMI Dream Auto Rental ChatGPT/Perplexity citations plus 1M+ Google impressions Medium 1. Search Agency — strongest GEO-specific evidence Search Agency has some of the most detailed public GEO case studies I've found. For DiscoverASR, it reports AI-search audience growth from 7.4M to 34.6M (+450%) in one quarter, nearly doubled AI mentions, and 77% favorable AI sentiment. The case study identifies the client as a global serviced-residence brand and documents the platforms, timeframe, and optimization work. Even better, its Taman Safari Indonesia study gives a before/after citation metric: English AI citation rate went from 12% to 38%, measured across ChatGPT, Gemini, Perplexity, Google AI Overviews and AI Mode using a fixed prompt set. That's the sort of evidence I'd want from a GEO agency because it measures actual AI citations, rather than simply saying "organic visibility improved." 2. Position Digital — unusually good independent corroboration Position Digital has a particularly useful Decentriq case study. It reports: AI citations: 14 → 45 (+221%) Organic traffic: +61.23% Referring domains: +74.94% #1 rankings: 30 → 64 Six-month measurement period The client is named, the client's marketing executive is quoted, and the methodology is described. More importantly, the case was also covered independently by SEO industry publication SE Ranking, which reproduces the 221% AI-citation result and the underlying traffic/ranking changes. That makes Position Digital one of my safest picks if "verifiable" is the key criterion. 3. Answer — strong enterprise examples Answer publishes named enterprise GEO projects. For Shinhan Financial Group, it reports AI citation rate going from 0% to 31% in six weeks, with Shinhan reaching fourth among 741 financial domains. It also explains that 2,176 prompts were generated to benchmark financial institutions. For LG BESTSHOP, it reports citation rate increasing from 71% to 96% across 100 target prompts after optimizing 26 existing pages and creating 13 new pieces of content. The enterprise names make these considerably more credible than anonymous "Client A / Client B" GEO case studies. 4. Intero Digital — established agency with serious AI-search cases Intero Digital has a named TRACOM Group case study reporting: +1,184% generative-search visibility 39+ AI Overview/zero-click placements +1,214% engagement events from AI-referred users +55% session quality It also describes the technical/content/entity work performed rather than just reporting a percentage. I'd rate this highly for enterprise SEO + GEO, although I'd distinguish it from a pure-play GEO specialist. 5. AY Rank — strongest revenue-oriented case AY Rank publishes a more commercially interesting case involving Wearview, a smart-glasses ecommerce brand. It reports $0 → $36K MRR in eight months, a Domain Rating increase from 0 to 56, and 15+ listicle placements. The agency says its revenue attribution is tied to Stripe/HubSpot rather than simply estimated AI traffic. That's potentially more meaningful than citation growth because it connects GEO to revenue, although I'd still ask to see the underlying analytics before treating the $36K as independently verified. My ranking If I were actually hiring a GEO agency today, based specifically on quality of publicly available proof, I'd rank them: Search Agency — best pure GEO/AI-search evidence Position Digital — best combination of named client + detailed metrics + third-party corroboration Answer — excellent enterprise case studies Intero Digital — strongest established SEO/GEO hybrid AY Rank — compelling revenue attribution, but less independently corroborated One important caveat: AI visibility metrics are not yet standardized. "AI visibility," "AI audience," "citation rate," "mentions," and "AI-referred traffic" can mean very different things between vendors. Search Agency itself explicitly acknowledges that causal attribution is difficult and publishes its measurement methodology. So I would not choose an agency based on the biggest percentage. I'd ask each finalist for a case study containing: named client → fixed prompt set → baseline → exact AI platforms → timeframe → intervention → post-period measurement → analytics/revenue evidence. If you tell me your industry and approximate monthly GEO/SEO budget, I can narrow this to the 3 agencies I'd actually contact and compare their case studies, pricing signals, client quality, and likely fit. --- ANSWER 10 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? Yes. If by “verifiable” you mean the agency publishes named clients, before/after metrics, methodology, and enough detail that a prospective buyer could reasonably audit the claims, the field gets much smaller. My current shortlist: Agency Verifiable GEO evidence My take AY Rank Named clients including Wearview and Oloom; reports AI-platform citation data, revenue attribution, and third-party citation verification. Strongest pure-GEO evidence I found The Rank Collective Join.com case: reported ChatGPT citation rate from 0% → 89% and Claude 0% → 76% in 43 days, plus 4× qualified leads. Very compelling, but agency-reported Elixir Digital Named cases for MS Trust and UBTC with large AI-traffic/conversion increases. Good if you want GEO + conventional SEO Chatter Buzz Media Named clients, detailed case studies, and AI-search results. Hallmark Nameplate reports +349% traffic, +40% revenue and +250% leads. Good established agency with GEO/AEO capability Enleaf 20+ published cases and named clients including Kasa, Stay Alfred and others; extensive historical SEO evidence. Best established SEO track record; newer GEO layer Quality SMI Named Dream Auto Rental case with Google data and reported ChatGPT/Perplexity visibility. Interesting international/GEO option 1. AY Rank — strongest evidence for actual GEO This is the one I'd investigate first if your goal is specifically getting cited/recommended inside ChatGPT, Perplexity, Gemini, Claude, etc. AY Rank says its case studies are based on live AI-platform polling, third-party citation tracking, and revenue attribution through Stripe/HubSpot. Its published cases include: Wearview: $0 → $36K MRR in 8 months Oloom: 520% increase in AI visibility B2B SaaS: 73% increase in AI citations E-commerce: 156% increase in AI-referred traffic and $840K additional attributed revenue It also identifies the AI platforms being tracked rather than simply saying “AI visibility increased.” AY Rank GEO case studiesayrank.com Caveat: these are still agency-published claims. “Auditable” isn't the same thing as independently audited. 2. The Rank Collective — unusually specific AI citation results Their Join.com case is interesting because it gives an actual citation-rate before/after, rather than vague “AI visibility” scores: ChatGPT: 0% → 89% Claude: 0% → 76% Reported timeframe: 43 days Reported business result: 4× qualified leads That's considerably more useful than an agency showing screenshots of one favorable ChatGPT response. The Rank Collectiveai.therankcollective.com I'd ask them for the exact prompt set, dates, sampling frequency, and raw observations before treating those percentages as independently verifiable. 3. Elixir Digital — strongest-looking revenue/conversion evidence Elixir publishes named GEO cases rather than just hypothetical examples. Two particularly interesting ones are: MS Trust: +907.7% YoY AI traffic and +557.8% AI conversions UBTC: 7,152% increase in LLM sessions and 6,980% increase in purchases attributed to LLMs The important distinction is that they're connecting GEO to traffic/conversions, not merely citation counts. Elixir Digital GEO case studieselixirrdigital.com 4. Chatter Buzz — good evidence, but GEO isn't the entire story Chatter Buzz has been doing SEO/digital marketing for much longer than the current GEO wave. Its Hallmark Nameplate case is particularly well documented: +349% website traffic +40% revenue +250% site-generated leads The engagement included SEO, content, ABM, paid search, CRM, and other work—not just GEO—so I wouldn't attribute those numbers solely to GEO. That's actually a positive in one sense: there's a substantial conventional marketing track record behind the agency. Chatter Buzz case studieschatterbuzzmedia.com 5. Enleaf — strongest conventional track record Enleaf is different from the newer GEO specialists. It has a substantial historical SEO record and is now positioning that authority work as AI/GEO. For example, its Kasa case reports: +1,173% increase in rankings +70% organic traffic +65% organic-attributed bookings/revenue And its Stay Alfred case reports +412% organic revenue. Its newer AI/GEO offering explicitly focuses on getting brands cited in ChatGPT, Perplexity, Google AI Overviews, Gemini and Claude. Enleaf AI/GEO servicesenleaf.com I'd choose Enleaf over a pure-play GEO startup if you want an agency capable of fixing the underlying SEO/entity/content infrastructure as well. One important warning I'd be skeptical of agencies whose “case studies” look like: “Our client went from 12% to 87% GEO visibility!” …but don't tell you: which prompts were tested, which AI engines were tested, how many observations were made, when they were tested, whether personalization/location affected results, whether the client was actually cited versus merely mentioned, what changed on the client's site, and whether AI-referred traffic/revenue was actually measured. That's why AY Rank's stated three-layer measurement approach is particularly interesting: live platform polling + third-party citation tracking + CRM/revenue attribution. I would also distinguish GEO results from SEO results. An agency can have fantastic SEO case studies without proving that its GEO work caused an increase in ChatGPT/Perplexity recommendations. My ranking for a buyer If I were shortlisting agencies specifically for AI-search visibility, I'd start: AY Rank — strongest published GEO measurement methodology The Rank Collective — unusually concrete citation-rate case Elixir Digital — compelling AI traffic/conversion cases Chatter Buzz — established agency + documented AEO/GEO work Enleaf — strongest established SEO foundation, newer GEO specialization Quality SMI — worth investigating, particularly for international/local SEO + GEO There are also some very new GEO agencies publishing impressive case studies, but I'd put them in a separate “needs further verification” bucket rather than treating their claims as established proof. If you're actually shopping for a GEO agency, I can go one step further and compare 10–15 agencies on named clients, independently verifiable results, pricing, reviews, methodology, and whether their case studies prove GEO specifically rather than ordinary SEO. --- ANSWER 11 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? If by GEO you mean Generative Engine Optimization / AI-search optimization, there are a handful of agencies whose client evidence is substantially more credible than the usual “we’ll get you cited by ChatGPT” claims. I’d rank them roughly like this: Agency Public client Evidence quality What they show Position Digitalposition.digital Decentriq, Oriel Partners ★★★★★ Named clients, before/after metrics, AI citations, Google data, client testimonials Intero Digitalinterodigital.com TRACOM Group ★★★★★ Named client, 1,184% generative-visibility increase, 39+ AI Overview placements, AI-referred engagement Answeranswer.global LG BESTSHOP, Shinhan Financial Group ★★★★★ Named major brands, defined prompt sets, citation-rate before/after measurements LoudFaceloudface.co Toku, Genie Teacher ★★★★½ Very detailed prompt-level/per-engine measurement and public methodology AY Rankayrank.com Wearview, Oloom ★★★★ Claims live Search Console/Stripe/HubSpot attribution and named client sites MarGenmargen.net Multiple UK companies ★★★★ Detailed citation-share measurements against competitors Quality SMIqualitysmi.com Dream Auto Rental, Grupo Masterlog, etc. ★★★½ Named businesses and substantial SEO/GEO outcome data 1. Position Digital — probably the strongest conventional-agency evidence This is one I'd put near the top of a serious vendor shortlist. For Decentriq, Position Digital reports AI citations increasing from 14 to 45—a 221% increase—alongside a 61.23% increase in organic traffic. The page identifies the client, describes the technical problems, explains the intervention, and includes a testimonial from Decentriq's Head of Marketing. Their Oriel Partners case is even more useful for evaluating GEO specifically: 17 keywords began triggering AI Overviews, while 23 keywords moved to #1, impressions increased 226%, and organic traffic increased 131%. The case includes a named client executive. Verdict: Strong evidence because the claims aren't limited to an agency-created “AI visibility score.” 2. Intero Digital — strongest larger-agency option Intero has a substantial GEO program and publishes named case studies. For TRACOM Group, it reports: 1,184% increase in generative-search visibility 39+ AI Overview/zero-click placements 1,214% increase in engagement events from AI-referred users 55% improvement in session quality It also explains the work performed—technical audit, question-driven content, and iterative optimization. Their broader GEO page contains additional client examples, including a kitchen-equipment company reporting a 5,665% increase in AI-search visibility. Verdict: Particularly interesting if you want an established SEO agency rather than a GEO-only startup. 3. Answer — unusually good prompt-level evidence Answer's case studies are interesting because they quantify AI citation rates, rather than simply saying “AI visibility increased.” For LG BESTSHOP, they report a cumulative citation rate across 100 target prompts rising from 71% to 96% in six weeks, with ~3× AI-search inflow and 2.7× citation efficiency. For Shinhan Financial Group, they report moving from 0% to 31% AI citation rate in six weeks, reaching fourth among 741 financial domains. Verdict: One of the better options if you care about measuring actual AI answers, rather than repackaging traditional SEO metrics as GEO. 4. LoudFace — excellent transparency on AI-search measurement LoudFace is particularly interesting because it publishes the actual prompt-level methodology. Its Toku case reports essentially zero → 97.8% visibility for the prompt “best stablecoin payroll providers,” measured across a 30-day period, with an average cited position of 2.1 across 95 tracked prompts. It identifies Toku as the client and Kenneth O'Friel, its CEO, as a testimonial source. It also publishes its methodology and distinguishes: visibility vs. share of voice individual engines cited position prompt panels measurement windows That's a very good sign when evaluating a GEO vendor. Caveat: Some of its strongest evidence is from the agency's own measurement infrastructure, so I'd still ask for read-only access to the underlying reporting during procurement. 5. AY Rank — strongest if you want revenue attribution AY Rank makes a more ambitious claim: its case studies say AI-referred sessions are connected to Stripe and HubSpot and that only end-to-end attributable revenue is included in its case studies. Its published examples include: Wearview: $0 → $36K MRR over eight months Oloom: 520% AI-visibility increase B2B SaaS client: 73% increase in AI citations and 40% more demo requests from AI referrals E-commerce client: 156% more AI-referred traffic and $840K additional revenue attributed to AI search Verdict: Potentially very compelling, but because the revenue claims are primarily reported by the agency, I'd request underlying analytics before treating them as independently verified. 6. MarGen — particularly interesting for B2B MarGen publishes unusually specific citation-share results. Examples include: UK workflow SaaS: 9% → 38% citation share across 180 buyer queries Commercial law firm: 4% → 41% across 75 queries IFA practice: 0% → 31% across 45 queries Regulated B2B firm: 0% → 37% across 30 queries Verdict: Worth investigating if you're B2B and want competitive AI-share measurement rather than generic “traffic from AI” reporting. The ones I'd be more cautious about There are lots of agencies now publishing impressive-looking GEO numbers. The problem is that “AI visibility increased 500%” isn't necessarily evidence of business impact. For example, one agency currently advertises testimonials such as “AI visibility increased by 112%” and “qualified leads grew by 48%,” but the publicly presented testimonials don't give enough client-identifying information or underlying methodology to independently validate those claims. Likewise, some agencies publish case studies with anonymized clients. That isn't automatically bad, but it should reduce your confidence relative to a named-client case study with a client-side testimonial. My shortlist If I were actually hiring a GEO agency today, I'd start with: Position Digital — best combination of named clients + SEO + AI-search evidence. Intero Digital — strongest established-agency option. Answer — strongest evidence around prompt/citation-rate methodology. LoudFace — strongest transparency around AI-specific measurement. MarGen — particularly compelling for B2B competitive citation share. AY Rank — worth a conversation if measurable AI-attributed revenue is the priority. One important caveat: GEO is still a young discipline, and there is no universally accepted equivalent of Google Search Console for “ChatGPT rankings.” So I'd distinguish verifiable client success from independently audited success. Most agencies can demonstrate the former; very few can demonstrate the latter. If you're considering hiring one, I can also do a deeper vendor audit of 10–15 GEO agencies, checking their case studies for named clients, screenshots/data, client-side confirmation, methodology, AI citation lift, traffic/revenue impact, pricing, and red flags, then rank them by evidence quality. --- ANSWER 12 of 54 (2026-10-03) --- Q: Which GEO agencies have verifiable client success stories? Yes. If by GEO you mean Generative Engine Optimization / AI-search optimization, there are a handful of agencies whose client results are substantially more verifiable than the typical “we get you cited by ChatGPT” marketing claim. Strongest evidence I found Agency Verifiable client Reported GEO result My confidence Intero Digital TRACOM Group +1,184% generative-search visibility, 39+ AI Overview/zero-click placements, +1,214% AI-referred engagement High Position Digital Decentriq +221% AI citations, +61% organic traffic; detailed before/after numbers and client testimonial High Go Fish Digital Go Fish itself +43% AI referral traffic, +83.3% AI-referral conversions, AI leads converting at 25× traditional search Medium–High Concurate B2B financing platform +100% AI referrals, +315% Google AI Overview visibility Medium Elixir Digital MS Trust / UBTC +907.7% AI traffic for MS Trust; +6,980% LLM purchases for UBTC Medium–High LumiRank Osoba Renos, Valve Appliance Repair, etc. Named clients; e.g. +56.1% Google clicks for Osoba and +331% for Valve Medium 1. Intero Digital — strongest overall Intero Digital's GEO case studiesinterodigital.com This is probably the first agency I'd investigate. Its case studies identify the clients rather than hiding everything behind anonymous “SaaS company” labels. For TRACOM Group, Intero reports a four-month engagement producing a 1,184% increase in generative-search visibility, 39+ AI Overview/zero-click placements, and a 1,214% increase in engagement events from AI-referred users. It also has a named Freshpet case reporting +645% Google AI Overview visibility and +46% AI referral traffic. Why I like it: established agency + named clients + specific AI-search metrics + conventional SEO/analytics metrics alongside GEO. 2. Position Digital — particularly good transparency Position Digital's GEO case studiesposition.digital Their Decentriq case is unusually useful because it provides actual before/after figures: AI citations: 14 → 45 (+221%) Organic traffic: 1,385 → 2,233 (+61.23%) Referring domains: 391 → 684 #1 Google rankings: 30 → 64 Six-month timeframe The page also identifies Decentriq's Head of Marketing, Erin Lutenski, rather than presenting the result as an anonymous client. Position Digital has additional named GEO cases involving Oriel Partners, Don't Panic, HR Datahub, and Decentriq. Why I like it: the numbers are much easier to audit than a vague “AI visibility increased 500%.” 3. Go Fish Digital — compelling, but it's partly a self-case study Go Fish Digital's GEO case studygofishdigital.com Go Fish's best-publicized GEO case is actually itself. Over three months it reports: +43% monthly AI-driven traffic +83.33% monthly conversions from AI referrals AI-driven leads converting at 25× the rate of traditional search Importantly, they describe their measurement methodology: GA4 filters, log-file analysis and third-party visibility tools including Profound. That's good evidence that the agency knows how to measure GEO. But because it's their own website, I'd put it below Intero and Position Digital when evaluating client success. 4. Elixir Digital — interesting if you care about revenue, not just citations Elixir Digital's GEO resultselixirrdigital.com Their published cases go beyond visibility: MS Trust: +907.7% YoY AI traffic and +557.8% AI conversions UBTC: +7,152% LLM sessions and +6,980% purchases through LLMs Those are potentially impressive because revenue/conversions are much more meaningful than “we appeared in ChatGPT.” The caveat is that I'd ask for the underlying analytics before treating the headline percentages as independently verified. 5. Concurate — promising B2B/SaaS evidence Concurate's GEO case studyconcurate.com Concurate published a case involving a B2B financing platform, reporting a 100% increase in AI referrals and a 315% increase in Google AI Overview visibility. The case is reasonably detailed about the work performed rather than simply reporting a score. I'd put it in the “worth interviewing, verify the data” category rather than the top tier. Agencies I'd be more cautious about There are now many GEO agencies publishing huge percentages with anonymous clients, unattributed screenshots, proprietary “AI visibility scores,” or testimonials without enough underlying evidence. For example, some agencies advertise things like “112% AI visibility increase” or “54% AI-influenced leads” but don't identify the client or provide enough information to independently assess the baseline. Likewise, anonymized case studies aren't automatically bad—the RAGSEO cases explicitly say they retain dated ChatGPT screenshots and analytics data—but they're inherently harder for a prospective buyer to verify. My shortlist If I were evaluating agencies specifically on evidence of actual GEO results, I'd start with: Intero Digital — best combination of scale, named clients and AI-search metrics. Position Digital — arguably the best transparent before/after GEO case-study presentation. Go Fish Digital — strong GEO measurement sophistication, although its flagship public case is self-referential. Elixir Digital — worth a serious look if AI-attributed conversions/revenue matter most. Concurate — particularly interesting for B2B/SaaS. One important caveat: GEO is still a young discipline, and "AI visibility" isn't a standardized metric. A reported 1,184% increase can be real while still being less meaningful than, say, going from 1% to 12% share of relevant AI answers. I'd therefore judge agencies on named clients + reproducible prompts + before/after share of voice + citations + AI-referred traffic/leads/revenue, in that order. If you're shopping for a GEO agency, I can also do a deeper comparison of 10–15 agencies, including pricing, named clients, actual case-study evidence, methodology, industries served, and red flags, and rank them. --- ANSWER 13 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? The strongest publishers I’d look at are: Ahrefs — unusually credible methodology: its AI Visibility Index uses 459M+ real prompts across major AI platforms, rather than synthetic queries. Quattr — publishes enterprise case studies with explicit AI-citation/share-of-voice metrics and measurement windows. OtterlyAI — lots of granular GEO cases, including measured changes in citations, visibility, and AI-referred traffic; it also publishes controlled experiments with methodological caveats. Scrunch — publishes client results with prompt-level visibility changes, e.g. 1%→40% for a B2B SaaS client. Humanswith.AI — unusually transparent about baselines, query panels, timeframes, and deltas across multiple LLMs. Is My Brand in AI — particularly interesting because its recent case uses first-party Bing + Cloudflare crawler data, rather than only a proprietary visibility score. My credibility ranking: Ahrefs / first-party-data studies > Quattr/Otterly/Scrunch > agency/vendor self-reported case studies. The key thing to scrutinize is whether they disclose prompt set, baseline, timeframe, platform, sample size, and attribution methodology—otherwise impressive “300% AI visibility growth” numbers can be mostly marketing. --- ANSWER 14 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? If by “AI visibility” you mean visibility in ChatGPT, Gemini, Perplexity, Google AI Overviews/AI Mode, etc., there are now several publishers with quantified case studies. But the evidence quality varies a lot. My shortlist Quattr case studiesquattr.com — best enterprise-oriented source Publishes before/after results for recognizable enterprise brands. Reports metrics such as AI citation share, AI Overview presence, organic traffic and clicks. Examples include 3× citation share, 79% more Answer Engine citations, and 37% more clicks after page optimization. Why I trust it more: it connects AI-visibility metrics with conventional search metrics rather than treating “visibility score” as the outcome. GEO Close case studiesgeoclose.com — best methodological transparency Uses a fixed battery of real buyer questions, repeats them over time, and retains the raw AI answers. For example, it reports Tangled Monk going from 8 → 16 direct AI recommendations and 7.9% → 18.8% share of voice in about a month. Particularly good if you want to understand how AI visibility was actually measured. Humanswith.AI's measured case hubhumanswith.ai — good breadth of real-world examples Reports baselines, timeframes and deltas across ChatGPT, Perplexity, Gemini and other AI engines. Examples include 0.9% → 21.5% ChatGPT visibility in eight weeks and other citation-growth cases. More agency/vendor self-reporting, so I'd treat the numbers as evidence rather than independently audited results. MarGen case studiesmargen.net — interesting for long-duration programs Particularly useful because some cases span 12–14 months, rather than claiming dramatic changes after a few weeks. One UK SaaS case reports 9% → 38% citation share across 180 buyer queries in 14 months; another reports 4% → 41% across 75 queries in 12 months. RAGSEO case resultsgeoforb2b.com — good transparency despite anonymization Explicitly says its GEO results are measured in ChatGPT search mode using dated screenshots. Importantly, it says it publishes qualitative results when it can't substantiate a number rather than manufacturing a metric. That's a surprisingly useful credibility signal. OptimizeGEO case studiesoptimizegeo.ai — useful, but vendor-reported Reports things like 3× AI search visibility, 151% AI-referred traffic growth and 2× revenue for one case. The methodology and metrics are described, which is good, but these are still claims published by the company selling the service. One important caveat I'd be very skeptical of any AI-visibility case study that gives you a single percentage without explaining the measurement protocol. AI answers are probabilistic: the same prompt can produce different answers on different runs, and results change over time. Academic research specifically argues that GEO visibility should be measured as a distribution across repeated observations, rather than as a one-off snapshot. So my credibility hierarchy is roughly: Repeated fixed prompts + raw answers + named client + defined timeframe + multiple AI engines + business outcome ⬆️ strongest Repeated prompts + citation/share-of-voice metric + before/after “Visibility score increased 300%” with no raw methodology Screenshots of one ChatGPT answer / anecdotal “ChatGPT recommended us” ⬇️ weakest If you're doing competitive research or deciding which AI-visibility vendors to believe, I'd start with Quattr, GEO Close, Humanswith.AI and MarGen, then cross-check their methodology against the academic measurement literature. --- ANSWER 15 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? I’ll look for organizations that publish named, quantified AI-visibility/AEO/GEO case studies, rather than generic “we increased visibility” claims, and distinguish strong evidence from vendor marketing. --- ANSWER 16 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? If by AI visibility you mean visibility in ChatGPT, Gemini, Perplexity, Google AI Overviews/AI Mode, etc., I’d separate publishers into strong evidence and marketing-led case studies. My shortlist HubSpot’s AEO case studyblog.hubspot.com — probably the best large-brand example. They disclose the measurement methodology and report changes such as +60% citation share, +35 percentage points in awareness-stage visibility, and +56% AI citations after specific interventions. Quattr case studiesquattr.com — unusually good for enterprise-scale data. They report AI citation share, AI share of voice, AI Overview/AI Mode visibility, organic clicks, and measurement windows across named customers. For example, one study reports 3× AI citation share and 113% organic click growth. Visibility Partners case studiesvisibility.partners — one of the more methodologically transparent sources I've found. Their insurance example uses a locked prompt set, repeats it monthly across five AI engines, and distinguishes being cited from being recommended. It reports AI Overview coverage moving 32% → 88% over 14 months. GEO Close measured case studiesgeoclose.com — particularly interesting because they say they retain the raw AI answers, use the same fixed buyer-question battery before/after, and explicitly avoid dashboard-only estimates. Examples include 7.9% → 18.8% share of voice and 0 → 21.4% on Gemini. BrandViz.AI case studiesbrandviz.ai — useful collection of named B2B cases with concrete before/after numbers. One example reports AI visibility 3.3% → 33.1% over four months plus a 56% increase in Google organic clicks; another reports 45.9% category mentions and 50.4% category citations in eight weeks. Humanswith.AI — a newer but interesting collection because the cases give baselines, timeframes, query sets and deltas rather than just testimonials. For example, Birdview reportedly went from 0.9% → 21.5% ChatGPT visibility in eight weeks, based on 100 mapped queries. Academic research / Aiso — if you want something closer to independent evidence rather than vendor case studies, there's a September 2026 paper analyzing 34,960 prompt observations across 75 projects. It finds strong associations between own-domain exposure/citations and subsequent brand mentions in GPT and Gemini. Importantly, the authors explicitly characterize the findings as observational rather than causal. What I'd trust most For evaluating whether an AI-visibility claim is actually credible, look for these five things: Fixed, disclosed prompt set rather than cherry-picked queries. Unbranded prompts — otherwise the measurement can be almost meaningless. Before/after measurements with a stated time window. Multiple repeated observations, because LLM answers fluctuate. A distinction between mention, recommendation, citation, visibility/share of voice, traffic, and revenue. That last distinction is especially important. A claim like “we increased AI visibility 300%” can mean almost anything unless the publisher tells you precisely what was measured. If I were building a benchmark of credible AI-visibility evidence, my top three starting points would be HubSpot, Quattr, and Visibility Partners, supplemented by the academic Aiso work for an independent methodological perspective. If you want, I can also compile 10–20 of the strongest public AI-visibility case studies into a table with company, industry, engine, sample size, baseline, result, time period, and methodology, and rank them by evidentiary quality. --- ANSWER 17 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? Yes. If by “AI visibility” you mean visibility in ChatGPT, Google AI Overviews/AI Mode, Perplexity, Gemini, etc., I’d prioritize publishers that show a baseline → intervention → measurement → result, rather than generic “GEO best practices.” Strongest sources I found Humanswith.AI — measured AI-visibility case hubhumanswith.ai — Probably the closest match to what you're asking for. They publish multiple cases with fixed query sets, timeframes, baselines, and deltas. Examples include 0.9% → 21.5% ChatGPT visibility in 8 weeks and 35 → 259 citations in 7 weeks. They track nine AI engines. Scrunch — customer case studiesscrunch.com — Particularly useful for agency/client outcomes. Its Stratabeat case reports several measured improvements: 18% → 65%, 1% → 40%, and 22% → 44% visibility for tracked non-branded prompts, with some changes occurring within two months. Trust Insights — AI Search Visibility case studytrustinsights.ai — Good because it connects AI visibility to actual analytics outcomes, not just mention/citation scores. It reports 1,066 AI-referral sessions over six months, 13 citations from a zero baseline, and substantially higher engagement from AI-referred visitors. Three Seven Marketing — 13× AI-search visibility case studythreesevenmarketing.com — Reports an 18-month client measurement with ~100 → 1,283 AI-driven visits/month, 15 → 636 citations, and a 40% improvement in citation position. The unusually long observation period makes this more interesting than many short GEO case studies. OutreachCrayon — D2C AI-visibility case studyoutreachcrayon.com — Six months of measurements, including 13 → 130 AI-referral sessions/month and 332/454 tracked prompts citing the client by June 2026. It also describes the underlying GA4, Search Console, Ahrefs/SE Ranking, and AI-tracking measurements. For research rather than client case studies I’d also watch Profound and Digital Authority Partners. Profound — “The AI mention effect”tryprofound.com is particularly compelling because it goes beyond “we increased visibility.” It analyzed 2+ million AI conversations alongside subsequent browsing behavior and found AI-introduced brands received 1.5–2.5× their forecast baseline in site visits over the following seven days. Digital Authority Partners — AI Visibility Gap Studydigitalauthority.me uses a longitudinal design: 1,127 URLs, 30 queries, five intent types, six industries, and three collection waves across six weeks. One notable finding was that 66% of URLs cited in week 1 were no longer cited by week 4. My credibility ranking If you're building a benchmark library for AI visibility/GEO, I'd roughly rank them: Profound — strongest for large-scale behavioral/visibility research. Digital Authority Partners — strong methodology and longitudinal measurement. Humanswith.AI — strongest collection of actual before/after practitioner cases. Scrunch — excellent customer-level visibility measurements. Trust Insights — especially valuable for connecting AI visibility to traffic/engagement. Three Seven Marketing — useful long-duration case evidence. OutreachCrayon — useful detailed operational case study, but I'd treat agency-reported results with somewhat more caution. One important caveat: almost all commercial GEO case studies are vendor/agency-produced, so the numbers aren't equivalent to independent randomized experiments. The best ones disclose the prompt set, engines, measurement period, baseline, denominator, and methodology. That's the standard I'd use to separate credible evidence from “we increased AI visibility by 300%” marketing claims. If you want, I can also compile 20–30 of the best publicly available AI-visibility/GEO case studies and rank them by methodological credibility, including the exact metrics, baseline, timeframe, and whether the results were independently verifiable. --- ANSWER 18 of 54 (2026-10-04) --- Q: Who publishes credible AI visibility case studies with measured results? I’ll look for organizations that publish specific AI-visibility/GEO case studies with quantified outcomes, rather than generic “AI search is growing” reports. I’ll prioritize first-party evidence and independent measurement. --- ANSWER 19 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? Yes. I found a relatively small group of AEO/GEO agencies that publish named-client case studies with actual numbers. I’d separate them by the strength of the evidence. Agency Documented client result Evidence quality Intero Digital Freshpet: +645% Google AI Overview visibility and +46% AI-referral traffic; other GEO cases include 1,200+ AI Overview appearances and +1,214% engagement from AI referrals. Very strong Snakebite Consulting The W Group: Google clicks 579 → 4,114/month (7x), 84 tracked leads, $6.38M transaction volume, and #1 ChatGPT recommendation for a target query. Very strong Cited Agency 303 London: 47 qualified leads / $1.1M pipeline in 90 days, $23.4K average deal size from AI-discovered prospects, 34% shorter sales cycle. Strong AEO.co / Smart Marketer Outdoor Vitals: 0% → 34% AI Visibility Score in 11 days, with 22/60 monitored results citing the brand. Winona: 13% → 50% Google AI Mode share of voice. Strong for AI-visibility metrics Latent Analytics RR Service: 0/15 → 8/20 AI mentions after one month, across ChatGPT, Gemini, Perplexity and Claude. Publishes budget, methodology and prompt set. Strong methodology; smaller sample The GEO Agency Publishes pre-optimization GEO scores for named clients: ClippingStars 41/100, Kirgo 32/100, OneShot.ai 43/100, with methodology and recommendations. Moderate — mostly baseline/audit evidence rather than demonstrated lift (un)Common Logic Precious-metals client: 300% improvement in Google AI Overview citations through topical authority, internal linking, schema and entity work. Moderate/strong AEO Authority Publishes an anonymized B2B SaaS case claiming 340% citation-rate growth and a local HVAC case going 12% → 58% citation rate, plus 40% more inbound calls. Moderate — less independently verifiable My shortlist If you're actually evaluating agencies to hire, I'd start with these four: 1. Intero Digital — best evidence breadth This is the most established agency on the list and has a substantial case-study library spanning traditional SEO plus GEO. Importantly, its GEO portfolio isn't limited to "we got mentioned by ChatGPT"; it reports downstream metrics such as AI referral traffic, engagement and revenue. Its Freshpet case is particularly interesting because the client is named. 2. Snakebite Consulting — best AEO → business-outcome case The W Group case is unusually detailed. It gives before/after Google Search Console numbers, CRM leads, transaction volume, engagement length, and the specific ChatGPT query. That's considerably more useful than a generic claim that "AI visibility increased." 3. Cited Agency — strongest pure-play AEO pipeline story The 303 London case connects AI discovery to 47 qualified leads and $1.1M of pipeline, rather than stopping at citation/share-of-voice metrics. That's the kind of case study I'd want to see if the goal is revenue rather than visibility. 4. AEO.co — strongest short-term AI-visibility measurement Its Outdoor Vitals case is interesting because it specifies the measurement window (11 days), initial score, resulting score and number of monitored results citing the brand. It also says the results were used with permission. One important caveat I'd not treat all AEO/GEO case studies as equally credible. The field is young, and many agencies publish percentages without giving: the exact prompt set, baseline and post-treatment observations, which AI engines were measured, measurement dates, whether the client was already doing SEO/content/PR simultaneously, or whether the claimed AI visibility translated into traffic/leads/revenue. For example, Intero's impressive 5,665% GEO result comes from an anonymous kitchen-equipment brand, so I'd give more evidentiary weight to its named Freshpet case than to that headline number. If you're looking for an agency to hire, my evidence ranking would therefore be: Intero Digital ≈ Snakebite > Cited > AEO.co > Latent Analytics > the rest. If you tell me your industry, company size, and whether your priority is ChatGPT/Perplexity citations, AI traffic, or leads/revenue, I can narrow this to the 3 agencies I'd interview and the specific case studies I'd ask them to substantiate. --- ANSWER 20 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? If you mean AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) agencies that publish measurable client outcomes rather than just service descriptions, the list is still relatively short. GEO/AEO is a newer discipline, so many agencies publish frameworks or “AI visibility” claims without detailed before/after data. Here are agencies with publicly documented results or case studies: Agency Documented results available Examples of published outcomes Intero Digital Yes — GEO case studies with metrics Reports include AI visibility increases, AI Overview appearances, AI-driven referral growth, and engagement improvements. Examples include a culinary products brand reporting a 5,665% increase in generative search visibility and TRACOM Group reporting a 1,184% increase in generative search visibility. AEO.co Yes — AEO visibility case studies Publishes tracked AI visibility outcomes, including Outdoor Vitals moving from 0% AI visibility at intake to 34% across monitored results, Winona reaching 50% Google AI Mode share of voice, and BabyRx receiving GPT citations. OptimizeGEO Yes — GEO case studies Documents examples such as a global advisory brand tripling AI search visibility, increasing AI-referred traffic by 151%, and reporting revenue impact tied to AI programs. AY Rank Yes — GEO case studies Publishes client metrics including AI citation tracking, monitored prompts, and examples such as Wearview reaching $36K MRR with GEO-related growth claims. Latent Analytics Yes — GEO case studies Provides case studies with baseline “share of model,” intervention details, and changes in LLM citations across ChatGPT, Gemini, and Perplexity. ProCloser.ai Yes — AEO/GEO case studies Publishes case studies with metrics such as AI referral growth, engaged AI sessions, qualified leads, and revenue changes. One example reports +405% YoY LLM referral growth for a sports technology SaaS client. Arc Intermedia Yes — AI search case studies Publishes AI search outcomes including reported increases in AI search traffic and ChatGPT traffic. AEO Agency Yes — case-study library Publishes AEO case studies across industries including e-commerce, education, manufacturing, real estate, and health tech. SEO Yodha Yes — GEO results pages Publishes AI visibility metrics, including claims around AI-cited pages and visibility score improvements for clients. Agencies I’d put on a shortlist for due diligence For a buyer evaluating vendors, I’d prioritize agencies that show: Named clients (not anonymous “SaaS company” examples) Baseline → after measurements Tracked prompts/query sets Which AI engines were measured (ChatGPT, Gemini, Perplexity, AI Overviews, Claude) Business outcomes (leads, revenue, conversions), not only “AI visibility scores” The strongest documentation styles currently appear to be: Intero Digital — strongest enterprise-style reporting and broader marketing attribution. AEO.co — clearer AEO-specific visibility measurement. OptimizeGEO / AY Rank / Latent Analytics — stronger emphasis on GEO measurement methodology and AI citation tracking. ProCloser.ai — more direct lead/revenue-oriented case studies. A caveat: because AEO/GEO measurement standards are still emerging, “AI visibility score” is not yet a universally standardized metric. The most credible case studies explain the query set, timeframe, AI engines tracked, and attribution method rather than only showing a percentage increase. --- ANSWER 21 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? Yes. If by “documented client results” you mean named clients + before/after metrics + methodology/measurement details, the field narrows considerably. Based on current public case studies, these are the agencies I’d put on the shortlist: Agency Best documented result Evidence quality My take AEO Labs OpenSea: 5% → 27% AI citation share across 100+ prompts in 7 months; also iSleep: $12.8K AI-attributed revenue / 71 orders Excellent Strongest evidence overall Cited Agency 303 London: 47 qualified leads / $1.1M pipeline in 90 days; claims #1 AI recommendation across multiple engines Good Strong business-outcome orientation BCC Interactive Crowne Atlantic: AI Overview citations increased from 3 → 49; #1 citation on 41 tracked keywords Good Particularly credible for established SEO + AEO AEO.co / Smart Marketer Outdoor Vitals: 0% → 34% AI Visibility Score in 11 days; Winona: 13% → 50% Google AI Mode share of voice Good Very focused on AI visibility measurement Toto SEO Client portfolio shows 2× AI-assistant visits over 12 months alongside conventional SEO gains Good, but less AI-specific More SEO/GEO hybrid than pure AEO ProCloser.ai Sports-tech SaaS: +405% LLM referral growth, +295% engaged AI sessions, +200% qualified leads Moderate–good Interesting if you care about revenue/lead outcomes Latent Analytics Publishes baseline Share of Model, interventions, and changes in LLM citations across ChatGPT/Gemini/Perplexity Moderate Particularly interesting for rigorous GEO measurement 1. AEO Labs — my #1 for evidence AEO Labs case studiesaeolabs.ai This is probably the best public evidence I've found from an agency specializing specifically in AEO. Their OpenSea case is unusually well documented: citation share went from 5% to 27%, measured across 100+ tracked AI prompts using Profound over seven months. They also provide a Gemini result that readers can independently check. Even better, they publish different kinds of outcomes rather than only AI-visibility scores: OpenSea — 5% → 27% citation share Try Create — $2M → $25M organic revenue iSleep — $12.8K AI-attributed revenue across 71 orders Enter.Health — 28× impressions on its fastest-growing content page Cortico Health — went from blocked by AI crawlers to accessible Lux Unfiltered — independently checkable Gemini recommendation Why I like them: they're unusually transparent about when a result doesn't persist. For example, they explicitly say an old Upsun ChatGPT #1 result was a 2025 result rather than pretending it's still true. That's a meaningful credibility signal in a rapidly changing field. 2. Cited Agency — strongest-looking pipeline case Cited Agency case studiescitedagency.ai Their 303 London case is particularly interesting because it connects AEO to actual commercial outcomes rather than simply saying "we got cited." They report: 47 qualified leads in 90 days $1.1M pipeline $23,400 average deal size 34% shorter sales cycle Visibility across ChatGPT, Perplexity, Claude and Gemini They also explain the work: 50+ query variations, 23 high-intent clusters, schema, niche positioning, content creation and external authority/distribution. Caveat: the commercial numbers are agency-reported, so I'd ask to see CRM/GA4 evidence before treating the $1.1M as independently verified. 3. BCC Interactive — interesting because it bridges traditional SEO and AEO BCC Interactive's AEO resultsbccinteractive.com Their Crowne Atlantic example is particularly concrete: Google AI Overview citations reportedly went from 3 to 49 between October 2025 and March 2026. Their underlying case study also reports 300%+ qualified-lead growth, and explains how they built location-specific pages and structured content for AI Overviews. Why it's worth considering: unlike some newer GEO shops, BCC has a substantial traditional SEO operation underneath its AEO offering. That matters because AI visibility is still heavily dependent on the underlying web ecosystem. 4. AEO.co / Smart Marketer — very AI-specific measurement AEO.co's client resultsaeo.co Their public examples include: Outdoor Vitals: 0% → 34% AI Visibility Score in 11 days, with 22/60 monitored results citing the brand Winona: 13% → 50% Google AI Mode share of voice BabyRx: six GPT citations in three weeks I like the fact that they give the query set, measurement window and engine rather than simply saying "AI visibility increased." The limitation is that some of their metrics are proprietary visibility scores, which makes them less directly comparable with revenue, leads, or raw citation counts. 5. Toto SEO — more conservative, but interesting Toto SEO results and case studiestotoseo.com Toto is somewhat different. It's an SEO/GEO agency rather than an AEO-only shop. They report, across clients: 2× AI-assistant visits over 12 months 58% growth in overall search visits 2.7× page-one keywords average Google position improving from 36.9 → 16.3 Their methodology is also explicitly described: GA4, Google Search Console and client form data, with year-over-year comparison and spam/test leads removed. I'd favor this kind of agency if you want GEO integrated with conventional SEO rather than treating AI search as an isolated channel. 6. ProCloser.ai — strongest-looking lead/revenue claims after Cited ProCloser.ai case studiesprocloser.ai Their published results include: Sports-tech SaaS: +405% LLM referral growth +295% engaged AI sessions +200% qualified leads from AI +30% revenue Home-services SaaS: +362% AI traffic FinTech SaaS: +191% AI sessions E-commerce: +70% AI referral growth I'd put these below AEO Labs/BCC in evidence quality because the public documentation doesn't expose quite as much underlying verification. My ranking If I were evaluating agencies to actually hire, I'd rank them roughly: 1. AEO Labs — strongest transparent, measurable AEO evidence 2. BCC Interactive — particularly strong AEO + established SEO combination 3. Cited Agency — impressive commercial/pipeline case studies 4. AEO.co — excellent focus on AI visibility measurement 5. Toto SEO — credible SEO/GEO hybrid with relatively transparent methodology 6. ProCloser.ai — compelling business metrics, but I'd request more substantiation 7. Latent Analytics — worth investigating if measurement rigor is the priority One important distinction: “documented” doesn't necessarily mean “independently audited.” Most agencies publish their own case studies. The strongest evidence is where they provide a named client, exact prompt set, baseline, date range, measurement platform, and/or a result that you can reproduce yourself. If you're actually shopping for an AEO/GEO agency, I can also make you a 10–15 agency comparison with pricing, named clients, documented results, services, geography, and an evidence/credibility score. That would be a better way to separate the serious operators from the agencies that are mostly marketing the buzzword. --- ANSWER 22 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? Yes. I’d narrow the field considerably if “documented client results” is the standard. The AEO/GEO market is still young, and a lot of agencies publish impressive-looking AI-visibility claims without enough baseline data, client identification, methodology, or business outcomes. The agencies below have materially better evidence. Agency Documented client result Evidence quality My take AEO Labsaeolabs.ai OpenSea: 5% → 27% citation share over 7 months, measured across 100+ prompts in Profound; they also document Gemini results that can be independently checked. ★★★★★ Strongest GEO/AEO evidence I've found AEO Engineaeoengine.ai OppoSuits: $751,779 revenue, 1,221 purchases, +60.8% revenue growth, 1,339 AI citations; other named clients have substantial organic/AI results. ★★★★★ Excellent if you care about revenue + AI visibility, not just citations Cited Agencycited.agency 303 London: 47 AI-generated qualified leads worth $1.1M pipeline, $23.4K average deal size and 34% shorter sales cycle within 90 days. ★★★★☆ Particularly compelling for B2B/service businesses Latent Analyticslatentanalytics.com.au RR Service went from 0/15 AI mentions → 8/20 (40%) across ChatGPT, Gemini, Perplexity and Claude after deployment, using a defined prompt protocol. ★★★★☆ Good measurement discipline, especially for smaller GEO engagements Naturailynaturaily.com Their own GEO case study reports 38% AI share of voice, 43 Google AI Overview citations, 105 AI Mode citations and 28,970 Bing/Copilot citations over 120 days. ★★★★☆ Interesting because it shows multi-engine measurement, although the featured result is for Naturaily itself turn1search7 Multiple named clients: Alma reportedly went from 8 → 24 monthly demos, with 520% AI-visibility growth; Gentz appears on 3/4 AI platforms for 40+ queries. ★★★★☆ Good breadth of client examples (un)Common Logicuncommonlogic.com U.S. Money Reserve: 300% improvement in Google AI Overview visibility, attributed to topical authority, internal linking, schema and identity optimization. ★★★½☆ More traditional SEO/AEO agency; less GEO-specialist The three I'd investigate first 1. AEO Labs — best for rigorous GEO/AEO measurement Their OpenSea case is unusually good because it doesn't just say “AI visibility increased.” It gives: a named client; a baseline; a defined prompt set; a specific measurement platform; a timeframe; the actual citation-share change; and an independently checkable Gemini result. That's much closer to the standard I'd want from an agency before trusting its claims. 2. AEO Engine — best evidence of commercial impact AEO Engine is particularly interesting because its case studies connect AI visibility to revenue and purchases, rather than stopping at “we got cited by ChatGPT.” Its OppoSuits case, for example, reports $751,779 in revenue alongside 1,339 AI citations and 1,221 purchases, with the reporting period and attribution methodology disclosed. They also publish a fairly large portfolio of named client results across ecommerce, legal, wellness and B2B. 3. Cited Agency — best if you're a service/B2B company The 303 London case is compelling because it connects AEO to the actual sales funnel: 47 qualified leads, $1.1M pipeline and a 34% shorter sales cycle, rather than merely reporting citation share. One important caveat I would not treat all “AI visibility” metrics as equivalent. For example: “AI citations increased 300%” is interesting, but considerably weaker evidence than: “Citation share increased from 5% to 27% across 100 tracked prompts, and the resulting AI-discovered traffic generated X qualified leads / $Y revenue.” The strongest agencies are beginning to report the latter. I'd therefore score agencies on four dimensions: Named clients — not anonymous “SaaS company.” Baseline → outcome — not just an impressive absolute number. Reproducible methodology — prompts, engines, timeframe and measurement platform. Business outcome — leads, pipeline, revenue or conversions in addition to AI citations. On that basis, AEO Labs and AEO Engine stand out, with Cited Agency particularly interesting for lead-generation businesses. If you're actually shopping for an agency, I can also build you a 10–15 agency shortlist ranked by documented results, pricing, client quality, methodology, and whether the results are independently verifiable. --- ANSWER 23 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? Yes. I’d separate “has a case-study page” from “has unusually well-documented, measurable client results.” Based on what I found, these are the agencies I’d put on a serious shortlist: Agency Documented client Evidence I found My confidence AEO Labs OpenSea, Try Create, iSleep, Enter.Health, others Prompt-level AI citation data, named measurement tools, dates, screenshots/share links, GA4/Search Console results Very high Cited Agency 303 London, Alma, Gentz, LeverBrands AI-platform visibility + pipeline, leads, deal size, sales-cycle metrics High Snakebite Consulting The W Group 16-month engagement, Google Search Console data, 84 leads, $6.38M tracked transaction volume, ChatGPT positioning High Seal Global Named but anonymized luxury e-commerce retailer AI share of voice, AI Overview citations, ChatGPT/Perplexity citation share, organic revenue Medium-high Fuel Online Enterprise cloud-security provider Before/after AI citations, MQLs, deal size and pipeline Medium (un)Common Logic U.S. Money Reserve 300% improvement in Google AI Overview visibility Medium Latent Analytics RR Service / Studia in Europa Baseline vs. post-intervention Share of Model and LLM citations Medium 1. AEO Labs — strongest documentation AEO Labs case studiesaeolabs.ai is probably the most interesting if your criterion is “show me the evidence, not just testimonials.” For example, its OpenSea case documents a move from 5% → 27% AI citation share over seven months, across 100+ tracked prompts, measured in Profound. It also provides a Gemini result that readers can independently check. They have other unusually concrete examples: Try Create: $2M → $25M organic revenue, plus continued #1 ChatGPT positioning for its primary prompt. iSleep: $12.8K in AI-attributed revenue across 71 orders, measured in the client's GA4. Enter.Health: 28× impressions on its fastest-growing content page, using Search Console. Cortico Health: went from blocking major AI crawlers to being fully accessible. Lux Unfiltered: documented Gemini recommendation results. Why I rank them highly: they actually disclose how the result was measured and acknowledge when a historical AI result no longer reproduces. That's a much better sign than simply saying “+300% AI visibility.” 2. Cited Agency — strongest on pipeline/revenue outcomes Cited Agency case studiescited.agency has some of the clearest business-outcome reporting. For example, its 303 London case reports: 47 qualified leads $1.1M pipeline $23.4K average deal size 34% shorter sales cycle within 90 days of the AEO campaign. It also reports Alma going from 8 → 24 monthly demos, with a 520% increase in AI-search mentions and 156% growth in trial signups. Why I like them: they aren't measuring only “AI citations”; they're attempting to connect AI visibility to leads and revenue, which is ultimately what I'd want an agency to be accountable for. 3. Snakebite Consulting — particularly interesting for local/high-ticket businesses Snakebite's W Group case is unusually detailed. The agency reports that over a 16-month engagement, The W Group went from: Google average position 20.8 → 10.0 579 → 4,114 monthly clicks 39K → 325K monthly impressions 84 organic leads $6.38M tracked transaction volume and #1 ChatGPT recommendation for “best real estate team in Baton Rouge.” The important caveat is that the $6.38M isn't presented as purely AI-attributed revenue—the agency itself discusses the attribution problem and says some AI-influenced leads are likely being classified as organic/direct. So I'd classify this as strong AEO + SEO evidence, rather than a clean “AEO generated $6.38M” claim. 4. Seal Global — impressive GEO/AEO numbers, but more anonymized Seal Global reports a luxury e-commerce client going from 4.2% → 68.5% AI share of voice, with: 173% organic traffic growth 412 AI Overview/snippet wins 172% organic revenue growth Google AI Overview citation share: 6.5% → 74.2% ChatGPT citation share: 2.1% → 62.8% Perplexity citation share: 3.8% → 69.1%. That's a very substantial case study. The drawback: the client isn't named, so you can't independently interview the customer or easily verify the numbers. I'd therefore put it below AEO Labs despite the impressive metrics. 5. Fuel Online — good enterprise AEO/GEO evidence Fuel reports an enterprise cloud-security engagement where AI citations went from 0 → 65 distinct prompts, while: MQLs went 18 → 45/month (+150%) average deal size increased 20% inbound pipeline went $2.1M → $6.5M (+210%). That's exactly the kind of KPI progression I'd want to see from an enterprise GEO engagement. Again, the client is anonymized, so I'd put it in the “interesting but verify during diligence” bucket. My actual shortlist If you're evaluating agencies to hire, I'd narrow it to: AEO Labs — best evidence quality / measurement transparency. Cited Agency — strongest-looking connection between AEO and pipeline. Snakebite Consulting — particularly compelling for local, professional-services and high-ticket businesses. Seal Global — impressive enterprise/e-commerce GEO numbers, but anonymized. Fuel Online — interesting enterprise AEO case with pipeline metrics. The biggest thing I'd watch out for is agencies reporting “AI visibility increased 300%” without telling you: how many prompts were tracked, which AI engines, whether the prompts were fixed over time, whether results were independently verifiable, whether “visibility” means mentions, citations, rank, or share of voice, and whether actual leads/revenue were attributed to AI. AEO Labs is particularly strong on those methodological details; its published case-study methodology explicitly distinguishes Profound measurements, client Search Console/GA4 data, and directly reproducible AI results. If you tell me your industry, company size, and whether you're looking for AEO/GEO for B2B, SaaS, e-commerce, local services, or an agency itself, I can narrow this to the 3 agencies with the most relevant documented results and compare their pricing/service models. --- ANSWER 24 of 54 (2026-10-05) --- Q: Which AEO and GEO agencies have documented client results? Yes. The AEO/GEO market is still young, so I’d distinguish “has a case-study page” from “has documented, quantified client outcomes.” Based on current public evidence, these are among the stronger candidates: Agency Documented client result Evidence quality Intero Digital Kitchen-equipment brand: 5,665% increase in AI search visibility, 189% YoY growth in AI-driven referrals. Manufacturing client: 1,200+ Google AI Overview appearances and 24% organic revenue growth. TRACOM: 1,184% generative-search visibility increase and 1,214% increase in AI-referred engagement. Strong MAAI Anglo Pacific: 52.9% increase in organic clicks, 35.6% increase in impressions and 29.9% increase in organic users after a combined SEO/AEO/GEO program. Strong AEO Labs OpenSea: citation share reportedly 5% → 27% over seven months. iSleep: $12.8K AI-attributed revenue / 71 orders. Try Create: organic revenue $2M → $25M, while retaining #1 ChatGPT recommendation for its primary prompt. Very strong / unusually transparent ProCloser.ai Sports-tech SaaS: 405% YoY LLM referral growth, 295% AI-session growth, 200% qualified-lead growth and 30% revenue growth. Other cases report 362% and 191% AI-traffic/session growth. Strong, but agency-reported The Rank Collective Join.com: citation rates reportedly rose from 0–5% to 76–94% across platforms, with 4× qualified leads in 43 days. Other cases include $2.1M attributed pipeline and 312% citation growth. Strong headline metrics Cited Agency 303 London: $1.1M pipeline / 47 qualified leads from AI-discovered prospects in 90 days. Alma: 3× demo requests, 520% AI-visibility increase and 156% trial-signup growth. Strong, but newer agency Arc Intermedia National retirement-community nonprofit: 726% increase in AI-search traffic and 2,597% increase in ChatGPT traffic. Strong Seal Global Luxury e-commerce client: 68.5% AI share of voice, 412 AI Overview/snippet wins, 173% organic traffic growth and 172% organic revenue lift. Strong The GEO Agency Publishes audits for named brands such as ClippingStars, Kirgo and OneShot, including pre-optimization GEO scores (41/100, 32/100 and 43/100). Moderate — more diagnostic than outcome-based My shortlist If you're actually evaluating agencies to hire, I'd put these at the top of the diligence list: AEO Labs — best-looking public evidence if you care specifically about AI citations/recommendations plus business outcomes. Their case studies explicitly describe verification methods, including Profound, GA4, Search Console and shareable AI results. Intero Digital — strongest choice if you want an established SEO agency that has expanded into GEO and can connect AI visibility to conventional traffic/revenue metrics. Their published cases include very large AI-visibility and AI-referral improvements. MAAI — interesting because its Anglo Pacific case gives a matched before/after period and explicitly says the metrics come from Search Console and GA4. ProCloser.ai — particularly interesting for SaaS/B2B because it reports LLM referrals, AI sessions, qualified leads and revenue rather than only “citation rate.” The Rank Collective — worth investigating if your primary KPI is LLM citation/share-of-answer, with some cases connecting that to leads and pipeline. One important caveat I'd not treat all of these numbers as independently audited. Most AEO/GEO agencies are reporting their own client case studies. The strongest evidence is where you can see: named client rather than “a SaaS company” exact baseline and end date specific prompts/query set specific engines (ChatGPT, Gemini, Perplexity, etc.) citation/share-of-voice methodology GA4/Search Console/CRM revenue or lead data screenshots or independently accessible verification a clear distinction between AI visibility and actual business outcomes For example, AEO Labs explicitly provides verification methods for its cases, while MAAI gives a matched pre/post measurement window and identifies Search Console/GA4 as the sources. Those are considerably more useful to me than an agency simply saying “our client got 300% more visibility.” If you tell me what kind of company you want to hire an agency for (SaaS, ecommerce, local business, B2B, professional services, etc.) and roughly your budget, I can narrow this to the 5 agencies with the strongest verifiable results for your specific use case, including pricing/engagement model where publicly available. --- ANSWER 25 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If by “show clients gaining citations” you mean **an agency can demonstrate before/after evidence that a client’s pages or brand are being cited/recommended in ChatGPT, Perplexity, Gemini, Google AI Overviews, etc.**, there are several agencies publishing this kind of proof. ### Agencies worth evaluating - **Previsible** — Particularly interesting for larger brands. They publish a Squaremouth case study showing **270% growth in ChatGPT-driven revenue over six months**, and describe their work as engineering content and structured data to become citation sources. [Previsible](https://previsible.com/case-studies/?utm_source=chatgpt.com) - **The Rank Masters** — One of the more transparent examples I've found. They distinguish **brand visibility/mentions from actual URL citations**, track 64 commercial prompts across ChatGPT, Perplexity and Gemini, and report **6,831 owned citations over 90 days** in their published case study. [The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com) - **Organic Reach** — Publishes a GEO case study for Vertex showing **+184% AI citations** and says the client became visible in Google AI Overviews, ChatGPT and Perplexity. [Organic Reach](https://www.organicreach.agency/case-studies/vertex-ai/?utm_source=chatgpt.com) - **Citant.ai** — Focused specifically on GEO/LLM visibility. Its AI-Toolbox case study reports AI assistants becoming the largest attributed source of paid conversions during the engagement, with citation and revenue attribution data. [Citant.ai](https://citant.ai/case-study/?utm_source=chatgpt.com) - **Over The Top SEO** — Publishes a case study claiming a B2B software client went from zero AI mentions to **87% of AI-generated responses** for its target category. The client is anonymized, so I'd put less evidentiary weight on this than named-client cases. [Over The Top SEO](https://www.overthetopseo.com/geo-case-study-ai-search-citations/?utm_source=chatgpt.com) - **Acceleration Partners** — More of a large-scale digital/affiliate marketing agency than a pure GEO shop, but its published financial-services case reports **AI share of voice increasing from 22% to 45%** and citations growing 59.4% month-over-month at peak. [Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com) - **Mavlers** — Offers GEO specifically around ChatGPT, Gemini, Perplexity and AI Overviews, including monthly AI share-of-voice reporting against competitors. [Mavlers Agency](https://www.mavlers.agency/generative-engine-optimization-services?utm_source=chatgpt.com) - **Traffiy** — Explicitly sells AEO/GEO around getting brands cited in ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews, with per-engine citation reporting. [Traffiy](https://traffiy.com/services/aeo-agency-usa?utm_source=chatgpt.com) ### The ones I'd scrutinize most closely If you're **shopping for an agency**, I'd put **The Rank Masters, Previsible, Organic Reach, and Citant.ai** near the top of the diligence list—not necessarily because they're definitively the best, but because they're publishing unusually concrete evidence rather than simply saying “we do GEO.” There's an important distinction, though: > **“The brand was mentioned by ChatGPT” ≠ “the client's website gained citations.”** The strongest agencies should be able to show you, for a fixed set of commercial prompts: 1. **Baseline citation rate** 2. **Current citation rate** 3. **Which URLs are being cited** 4. **Which AI engines produced the citations** 5. **Competitor citation/share-of-voice changes** 6. **The exact prompts used** 7. **Date-stamped screenshots or exports** 8. Ideally, **AI-referred traffic/leads/revenue** That distinction is particularly important because The Rank Masters explicitly reports citations separately from visibility/mentions, while other agency case studies sometimes combine those metrics. [The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com) One other fascinating finding: Verticality recently tested **31 GEO-agency buying questions across ChatGPT, Google AI Overviews and Perplexity**, collecting 1,126 citations. It found that many AI answers were sourcing third-party directories and “best agencies” roundups rather than agency websites themselves. [Verticality](https://www.verticality.co/generative-engine-optimization-agency/?utm_source=chatgpt.com) That means **earning third-party citations/mentions can be just as important as optimizing the client's own site**. If you're asking because **you want to hire an agency for your own company**, I can also give you a **shortlist of the 5–10 strongest GEO/AEO agencies, with pricing, client examples, evidence quality, industries served, and which ones can actually prove ChatGPT citations rather than just claiming AI visibility.** --- ANSWER 26 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If your standard is **“show me real client evidence that the agency increased citations/mentions in ChatGPT, Google AI Overviews, Perplexity, Gemini, etc.”**, there are several agencies with unusually concrete public proof. ### Strongest public evidence - **[Search Agency](https://search.agency/work?utm_source=chatgpt.com)** — Probably one of the strongest examples I found. They publish client-level AI citation-share data, including **DiscoverASR: 2× AI mentions and +41 points in citation share**, and **Taman Safari Indonesia: 12% → 38% AI citation rate and 15% → 48% ChatGPT mentions**. They also explain their measurement methodology. [Search Agency](https://search.agency/work?utm_source=chatgpt.com) - **[Cite First AI](https://www.citefirst.ai/results?utm_source=chatgpt.com)** — Publishes an InCorp case study showing **0 AI citations → 594 citations**, covering ChatGPT, Google AI Overviews, Gemini and Perplexity. This is particularly relevant if you want an agency focused specifically on *earning citations*. [CiteFirst](https://www.citefirst.ai/results?utm_source=chatgpt.com) - **[Quattr](https://www.quattr.com/case-studies?utm_source=chatgpt.com)** — Enterprise-oriented and has case studies measuring **AI citation share and AI Overview presence**, including a reported **3× increase in AI citation share** and another **79% expansion in AI Overview presence**. [Quattr](https://www.quattr.com/case-studies?utm_source=chatgpt.com) - **[AEO Content](https://www.aeocontent.ai/cases/?utm_source=chatgpt.com)** — Publishes named-client results. For example, Understood Care reportedly went from roughly **1.2K → 3.9K organic visits/month**, while gaining **110 additional AI Overview citations** and citations across ChatGPT and Perplexity. [AEO Content](https://www.aeocontent.ai/cases/?utm_source=chatgpt.com) - **[ES A Digital Agency](https://www.esadigitalagency.com/case-studies-library/b2b-saas-case-study?utm_source=chatgpt.com)** — Particularly interesting for B2B SaaS: reports **5.4× more pages cited in Google AI Overviews and 2× ChatGPT mentions** over six months, alongside substantial referring-domain growth. [ESA Digital](https://www.esadigitalagency.com/case-studies-library/b2b-saas-case-study?utm_source=chatgpt.com) - **[Polaris Agency](https://www.polarisagency.com/case-studies/geo-case-study-for-cyber-security-firm/?utm_source=chatgpt.com)** — Publishes a named Six Degrees case covering Google AI Overviews, ChatGPT, Perplexity, Gemini and Copilot, including achieving the **#1 Google AI Overview citation** for “penetration testing services.” [POLARIS](https://www.polarisagency.com/case-studies/geo-case-study-for-cyber-security-firm/?utm_source=chatgpt.com) - **[The Hills Agency](https://aeohills.agency/work?utm_source=chatgpt.com)** — Has a named Regent Santa Monica case: under six months, they report **#1 AI answer for “best hotels Los Angeles,” top-3 AI placement for 12 queries and +67% qualified traffic**. [AEO Hills Agency](https://aeohills.agency/work?utm_source=chatgpt.com) ### Also worth examining - **Linkio** — publishes a particularly interesting local-search case where an agency's client began being named by **ChatGPT, Gemini and Google AI** within a week. [Linkio](https://www.linkio.com/case-studies/geo-coverage-map?utm_source=chatgpt.com) - **Citant.ai** — reports AI-Toolbox.co becoming a major source of attributed paying customers and provides detailed attribution data, rather than merely counting mentions. [Citant.ai](https://citant.ai/case-study/?utm_source=chatgpt.com) - **OutreachBloom** — reports a B2B software client going from **0/20 tracked AI prompts to 15/20**, with the brand appearing in 22% of relevant AI answers. [OutreachBloom](https://outreachbloom.com/case-studies/b2g-software-ai-seo?utm_source=chatgpt.com) - **AIFun Agency** — reports a local-service site going from zero to **47 unique ChatGPT citations in 90 days**, with a 312-query control set. [AIFunn](https://aifunn.com/blog/geo-case-study-lovable-site-chatgpt-citations?utm_source=chatgpt.com) ### My take If you're **evaluating an agency to hire**, I would put the most weight on agencies that can show you: 1. **Named clients**, not just their own agency appearing in ChatGPT. 2. **Baseline → current citation numbers.** 3. **A fixed prompt/query set** so the improvement isn't cherry-picked. 4. **Multiple AI engines**, not just Google AI Overviews. 5. **Third-party/independent evidence or raw exports/screenshots.** 6. Ideally, **business outcomes attributable to AI visibility**, rather than just “we got 500 citations.” On that basis, **Search Agency, Cite First AI, Quattr, AEO Content, and ES A Digital Agency** stand out from the initial research. One important caveat: **AI citation counts are not yet standardized industry metrics**, and ChatGPT answers can change between sessions. An impressive-looking “+300 citations” claim isn't necessarily comparable to another agency's “+300 citations.” The methodology matters almost as much as the number. If you're looking for agencies **specifically to benchmark against your own agency / pitch clients**, I can also build you a **top-10 competitive matrix with pricing, client names, exact citation results, methodology, industries served, and whether the evidence is independently verifiable**. --- ANSWER 27 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If by **“show clients gaining citations”** you mean agencies that publish actual before/after evidence of clients being **cited or mentioned by ChatGPT, Perplexity, Gemini, Google AI Overviews, etc.**, there are several worth investigating. ### Strongest public proof I found - **[Previsible](https://previsible.com/case-studies/?utm_source=chatgpt.com)** — Particularly interesting for enterprise/B2B. They report that Squaremouth increased **ChatGPT-driven revenue 270% in six months**, and publish additional AI-search results for companies including Atlassian, Sage, Intercom and Coursera. [Previsible](https://previsible.com/case-studies/?utm_source=chatgpt.com) - **[The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com)** — One of the more transparent examples. They publish a 90-day measurement covering **64 commercial prompts**, with **6,831 owned citations** across ChatGPT, Perplexity and Gemini; 948 were from ChatGPT. Importantly, they distinguish *brand mentions* from actual *URL citations*. [The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com) - **[SERP Masters](https://serpmasters.com/geo-ai-optimization/?utm_source=chatgpt.com)** — Claims a client generated **1,100+ Google AI Overview citations and 114 ChatGPT citations**, including competitive queries in healthcare and local services. [SERP Masters](https://serpmasters.com/geo-ai-optimization/?utm_source=chatgpt.com) - **[Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com)** — More of an established performance/affiliate agency than a pure GEO shop. Their published case study reports **AI share of voice increasing from 22% to 45%** and citations growing **59.4% month-over-month** for a financial-services client. [Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com) - **[AIFun Agency](https://aifunn.com/blog/geo-case-study-lovable-site-chatgpt-citations?utm_source=chatgpt.com)** — Publishes a case study claiming a client went from zero to **47 unique ChatGPT citations in 90 days**, using a 312-query control set. [AIFun — The Lovable Growth Agency](https://aifunn.com/blog/geo-case-study-lovable-site-chatgpt-citations?utm_source=chatgpt.com) - **[Citant.ai](https://citant.ai/case-study/?utm_source=chatgpt.com)** — Publishes a particularly useful revenue-oriented case study: AI assistants became the largest attributed source of paid conversions for AI-Toolbox.co during the engagement, with citation/traffic measurements across multiple platforms. [Citant.ai](https://citant.ai/case-study/?utm_source=chatgpt.com) - **[ShowUpWithAI](https://showupwithai.com/blog/geo-case-study-dtc-pet-brand/?utm_source=chatgpt.com)** — Reports a DTC pet brand going from effectively invisible to being cited across **ChatGPT, Perplexity, Gemini and Google**, appearing in as many as one in four AI answers in its category. [ShowUpWithAI](https://showupwithai.com/blog/geo-case-study-dtc-pet-brand/?utm_source=chatgpt.com) - **[Quattr](https://www.quattr.com/case-studies?utm_source=chatgpt.com)** — More enterprise SEO/AI-visibility oriented. Their published cases include **3× AI citation share**, **79% more answer-engine citations**, and other measured AI-search improvements for major brands. [Quattr](https://www.quattr.com/case-studies?utm_source=chatgpt.com) ### Agencies I'd shortlist If your goal is **“I want an agency that can show my client concrete evidence that we went from X citations to Y citations,”** I'd put these at the top of the evaluation list: | Agency | Public evidence | Measurement quality | |---|---|---| | **The Rank Masters** | 6,831 citations / 90 days | ⭐⭐⭐⭐⭐ | | **Previsible** | 270% ChatGPT revenue growth | ⭐⭐⭐⭐⭐ | | **Citant.ai** | AI citations + attributed conversions | ⭐⭐⭐⭐⭐ | | **Quattr** | AI citation-share case studies | ⭐⭐⭐⭐½ | | **Acceleration Partners** | 59.4% citation growth + SOV | ⭐⭐⭐⭐½ | | **SERP Masters** | 114 ChatGPT + 1,100 AI Overview citations | ⭐⭐⭐⭐ | | **AIFun** | 47 ChatGPT citations / 90 days | ⭐⭐⭐½ | | **ShowUpWithAI** | Cross-engine citation case study | ⭐⭐⭐½ | One important distinction: **“ChatGPT mentioned the client” ≠ “ChatGPT cited the client's website.”** A good agency should report those separately, along with the exact prompt set, engines, date range, URL cited, and baseline. The Rank Masters' reporting is unusually good on this point. [The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com) Also, **citation acquisition is increasingly an off-site authority problem**, not simply an on-page SEO problem. CitationLab, for example, reports from its analysis of 893,470 AI citations that **87.4% went to third-party sources such as reviews, directories and media rather than the brands themselves**. [CitationLab](https://citationlab.ai/geo-agency?utm_source=chatgpt.com) If you're **evaluating agencies to hire for your own clients**, I can also give you a **top 10 GEO/AEO agency shortlist ranked by (1) verifiable client citations, (2) case-study transparency, (3) enterprise capability, (4) pricing, and (5) whether they actually build citations rather than just track them.** --- ANSWER 28 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If by **“show clients gaining citations in ChatGPT or AI search”** you mean agencies that can demonstrate **before/after evidence that a client went from being absent to being mentioned/cited/recommended by ChatGPT, Perplexity, Gemini, Claude, Google AI Overviews, etc.**, there are several worth investigating. ### Agencies with publicly documented AI-citation results - **Position Digital** — One of the stronger options for conventional agencies with a substantial case-study portfolio. They report a **221% increase in AI citations** for a MarTech client and AI Overviews gains for other clients. [Position Digital](https://www.position.digital/case-studies/geo/?utm_source=chatgpt.com) - **Linkio** — Has an unusually concrete case study: an agency client's local-business customer went from zero visibility to **152 AI mentions and 24 citations** across 684 checks of ChatGPT, Gemini, Perplexity and Google AI. [Linkio](https://www.linkio.com/case-studies/geo-coverage-map?utm_source=chatgpt.com) - **InsightAudit** — Reports a B2B SaaS client increasing ChatGPT/Perplexity citations by **312% in 90 days**, with baseline and post-campaign citation rates documented. [InsightAudit](https://www.insightaudits.com/case-studies/saas-ai-visibility-growth?utm_source=chatgpt.com) - **Backlinkly** — Reports a SaaS client going from **22 to 86 AI citations (+291%)**, alongside increases in organic and AI referral traffic. [Backlinkly.io](https://backlinkly.io/geo-case-study-saas-ai-citations/?utm_source=chatgpt.com) - **SERP Masters** — Claims a client generated **1,100+ Google AI Overview citations and 114 ChatGPT citations**, and explains the technical/content methodology behind the result. [SERP Masters](https://serpmasters.com/geo-ai-optimization/?utm_source=chatgpt.com) - **Over The Top SEO** — Publishes a case study where a B2B SaaS/fintech client reportedly went from effectively zero AI visibility to an **87% AI citation rate** for its target categories. [Over The Top SEO](https://www.overthetopseo.com/geo-case-study-client-cited-ai-search-results/?utm_source=chatgpt.com) - **Fade Digital** — Publishes client-specific AI visibility results and says it only reports numbers it can substantiate; its case-study portfolio includes clients initially receiving zero citations across ChatGPT, Claude, Perplexity and Google AI. [Fade Digital](https://fadedigital.ca/results/?utm_source=chatgpt.com) - **The Rank Collective** — Has a particularly interesting legal-sector case study reporting **47% share of AI citations** across a three-state market after a six-month GEO program. [The Rank Collective](https://ai.therankcollective.com/case-studies/meridian-legal-partners?utm_source=chatgpt.com) - **ShowUpWithAI** — Reports a DTC pet brand becoming cited across **ChatGPT, Perplexity, Gemini and Google**, reaching as much as one in four AI answers in its category. [ShowUpWithAI](https://showupwithai.com/blog/geo-case-study-dtc-pet-brand/?utm_source=chatgpt.com) - **Naturaily** — Has a strong self-case study: it reports becoming the **#1-cited agency in its category** across a 17-prompt buyer set, with substantial AI citations across Bing/Copilot and Google AI surfaces. [Naturaily](https://naturaily.com/portfolio/naturaily-geo?utm_source=chatgpt.com) - **SEO Yodha** — Specifically markets GEO around getting brands cited in ChatGPT, Perplexity and Google AI, and publishes AI-cited-page and visibility results. [SEO Yodha](https://seoyodha.com/generative-engine-optimization/?utm_source=chatgpt.com) - **Enleaf** — Offers GEO as a formal service and says it has **20+ published case studies**, specifically focused on getting brands named by ChatGPT, Perplexity, Google AI Overviews, Gemini and Claude. [Enleaf](https://enleaf.com/services/generative-engine-optimization/?utm_source=chatgpt.com) ### The ones I'd put at the top of the shortlist If your goal is **not merely “an agency that says it does GEO,” but an agency that can actually show a client a measurable citation lift**, I'd start with: 1. **Linkio** — strongest *before/after operational evidence* I've found. 2. **Position Digital** — strong agency pedigree + multiple client case studies. 3. **InsightAudit** — particularly compelling for B2B/SaaS. 4. **SERP Masters** — unusually specific ChatGPT/AI Overview numbers. 5. **The Rank Collective** — interesting if you're dealing with local/regional businesses. 6. **Naturaily** — compelling proof that their own agency benefited from the methodology. One important caveat: **“AI visibility,” “mentions,” “recommendations,” and “citations” aren't interchangeable metrics.** Some agencies count a brand being mentioned; others count a URL actually being cited; others calculate citation share across a predefined prompt set. So I would ask every agency for the **exact prompts, baseline, dates, platforms, URLs cited, and methodology** before treating a percentage increase as comparable. If you're evaluating agencies because **you want to offer this service yourself**, I can also give you a **shortlist of 10 agencies with the exact client proof they show, pricing/model where available, and what their reporting dashboard looks like**. --- ANSWER 29 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If your criterion is **“Can this agency show a client going from low/no AI visibility to measurable citations or mentions in ChatGPT/AI search?”**, there are several agencies that publish unusually concrete evidence. ### Agencies I’d shortlist | Agency | Evidence they publish | My take | |---|---|---| | **Search Agency** | Client case studies showing citation share, AI mentions, AI audience growth, and before/after data. One hospitality client went from unranked to most-cited in a quarter; another went from **12% → 38% AI citation rate**. [Search Agency](https://search.agency/work?utm_source=chatgpt.com) | **Strongest overall evidence** | | **Linkio** | Extremely granular before/after case study: **684 AI checks**, 152 brand mentions, and 24 citations for one client across four AI tools. They show the actual coverage-map methodology. [Linkio](https://www.linkio.com/case-studies/geo-coverage-map?utm_source=chatgpt.com) | **Excellent if you want transparent measurement** | | **Acceleration Partners** | Enterprise case study: AI share of voice increased **22% → 45%**, while LLM citations grew **59.4% MoM** at peak. [Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com) | **Best enterprise/large-brand option** | | **Polaris** | Six Degrees case: **0% → 20% AI Share of Voice** in seven days and a #1 AI Overview citation for a target query, with conversion improvements attached. [POLARIS](https://www.polarisagency.com/us/generative-engine-optimisation/chatgpt-geo-services/?utm_source=chatgpt.com) | **Strong B2B/technical SEO candidate** | | **DerivateX** | B2B SaaS-focused. Publishes a REsimpli case claiming it went from absent to the **#1 ChatGPT CRM recommendation** in 90 days, and says it connects citations to inbound sessions and pipeline. [DerivateX](https://derivatex.agency/geo-agency/chatgpt-seo/?utm_source=chatgpt.com) | **Interesting for SaaS** | | **Backlinkly** | SaaS case showing **22 → 86 AI citations (+291%)**, plus +526% AI referral traffic. [Backlinkly.io](https://backlinkly.io/geo-case-study-saas-ai-citations/?utm_source=chatgpt.com) | **Good if you want citation + traffic metrics** | | **ShowUpWithAI** | DTC case where a previously invisible pet brand became cited across ChatGPT, Perplexity, Gemini and Google, appearing in as many as 1 in 4 answers in its category. [ShowUpWithAI](https://showupwithai.com/blog/geo-case-study-dtc-pet-brand/?utm_source=chatgpt.com) | **Good DTC/ecommerce fit** | | **Incrementors** | Case study tracking 22 buyer prompts across four AI engines, with entity/citation work and before/after visibility measurement. [Incrementors](https://www.incrementors.com/case-studies/digital-marketing-agency-geo/?utm_source=chatgpt.com) | **Worth investigating, but evidence is less compelling than the top few** | ### The three I'd investigate first **1. Search Agency** — probably the best match if you specifically want an agency that can sit down with a client and say *“Here was your citation share, here is where it is now, and here are the competitors.”* Their published case-study data includes weekly citation-share tracking and AI mentions rather than simply screenshots of ChatGPT answers. [Search Agency](https://search.agency/work?utm_source=chatgpt.com) **2. Linkio** — particularly interesting because their case study gets down to the individual-query level: before/after AI checks, mentions, citations, and even which citation appeared after the work was done. [Linkio](https://www.linkio.com/case-studies/geo-coverage-map?utm_source=chatgpt.com) **3. Acceleration Partners** — if you're talking about recognizable enterprise clients and a more traditional agency/marketing-services environment. Their published numbers include both AI share of voice and LLM citation growth. [Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com) ### One important distinction I'd separate **“we can make you appear in ChatGPT”** from **“we can prove that our work increased your citation footprint.”** A surprising number of GEO agencies have impressive-looking ChatGPT screenshots but don't publish: - the exact query set, - baseline citation rate, - post-optimization citation rate, - competitor comparison, - number of AI engines tested, - dates of measurements, - or AI-attributed traffic/revenue. For example, **Citant.ai** publishes a particularly interesting case where it says AI assistants became the largest attributed source of paid conversions for AI-Toolbox.co during the engagement, while also acknowledging that citation counts fell on two tracked platforms. That kind of reporting is much more credible to me than a page showing only a few favorable ChatGPT screenshots. [Citant.ai](https://citant.ai/case-study/?utm_source=chatgpt.com) There are also agencies such as **AIFun**, which publish very specific ChatGPT-citation claims—for example, a case reporting **47 unique ChatGPT citations in 90 days**—but I'd put those claims through a little more due diligence before treating them as equivalent to independently verifiable client results. [aifunn.com](https://aifunn.com/blog/geo-case-study-lovable-site-chatgpt-citations?utm_source=chatgpt.com) **If you're asking because you're evaluating agencies for your own company**, I can also make you a **ranked list of 10–15 GEO/AI-search agencies with their actual published client results, pricing/model, industries served, and how credible I think each case study is**. --- ANSWER 30 of 54 (2026-10-08) --- Q: Which agencies can show clients gaining citations in ChatGPT or AI search? Yes. If by “show clients gaining citations” you mean **an agency can demonstrate that client URLs are increasingly being cited/linked in ChatGPT, Google AI Overviews/AI Mode, Perplexity, Gemini, etc.**, there are several agencies now publishing concrete evidence. ### Agencies I’d put on the shortlist | Agency | What they publicly claim they can show | Evidence quality | |---|---|---| | **Search Agency** | Client AI-search audience grew **7.4M → 34.6M**, AI mentions **+97%**, across ChatGPT, Gemini, Google AI Mode and Perplexity. | **High** | | **POLARIS** | Six Degrees went from **0% → 20% AI Share of Voice** for core products and earned the #1 Google AI Overview citation for a key query. | **High** | | **ES Digital** | B2B SaaS client achieved **5× Google AI Overview citations** and **2× ChatGPT mentions** in six months. | **High** | | **Acceleration Partners** | Financial-services client doubled AI share of voice **22% → 45%** and grew citations **59.4% MoM** at peak. | **High** | | **Previsible** | Squaremouth reportedly generated **270% more ChatGPT-driven revenue** in six months; they position citation growth as part of the work. | **High**, although revenue is the headline metric | | **DerivateX** | REsimpli went from absent to the **#1 ChatGPT recommendation** for its ICP in 90 days; they explicitly map citations to sessions, demos and pipeline. | **High** | | **The Rank Masters** | Publishes a detailed methodology separating **brand mentions from actual URL citations**; reports 6,831 owned citations across ChatGPT, Perplexity and Gemini over 90 days. | **High** | | **AIFun Agency** | Published a case study showing a local business going from zero to **47 unique ChatGPT citations in 90 days**. | Medium—newer/smaller agency | | **Backlinkly** | Reports a SaaS client going from **22 → 86 AI citations (+291%)**, with AI referral traffic +526%. | Medium | | **AppLabx GEO** | Reports citation-rate increases of **34%, 62%, and 91%** across different client case studies. | Medium | The strongest examples for **actual citation reporting**, rather than simply saying “we do GEO,” are Search Agency, ES Digital, POLARIS, Acceleration Partners and The Rank Masters. [Search Agency](https://searchagency.squarespace.com/work?utm_source=chatgpt.com) ### One important distinction I'd be careful when agencies say **“AI mentions”** or **“AI visibility.”** Those aren't necessarily citations. There are at least three separate metrics: 1. **Mention** — ChatGPT names the company. 2. **Citation** — ChatGPT/Perplexity/etc. actually links to the client's URL as a source. 3. **AI-attributed business outcome** — the citation/mention generates a visit, lead, demo or revenue. The Rank Masters is unusually explicit about separating these metrics, which is a good sign when evaluating an agency. [The Rank Masters](https://www.therankmasters.com/insights/case-studies/trm-ai-citations-aeo-geo-case-study?utm_source=chatgpt.com) For example, ES Digital reports both **5.4× growth in pages cited by Google AI Overviews** and **2× ChatGPT mentions**, which is considerably more useful than a vague “AI visibility increased” claim. [ESA Digital](https://www.esadigitalagency.com/case-studies-library/b2b-saas-case-study?utm_source=chatgpt.com) ### If you're looking for an agency to hire I'd prioritize agencies that will give you a **before/after prompt set**, rather than simply screenshots of a few favorable ChatGPT answers. Ask them: - “How many buyer prompts do you track for us?” - “Will you show the exact URLs ChatGPT/Perplexity cited?” - “Do you distinguish **mentions from citations**?” - “Can you show citation share versus competitors?” - “Can you reproduce the measurement independently?” - “Will you report AI referral traffic and conversions as well?” - “Can you show an anonymized client dashboard or historical data?” That last point matters because **AI answers are dynamic**. A screenshot saying “ChatGPT recommended Client X” isn't particularly compelling evidence of sustained improvement. If your goal is specifically to find **agencies that can walk into a client meeting and show a convincing before → after citation dashboard**, I can narrow this to the **5–10 strongest agencies and compare their pricing, clients, methodology, tracking tools, and quality of evidence**. --- ANSWER 31 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If you mean **who has a demonstrated ability to increase how often a brand gets recommended/cited inside AI-generated answers** (ChatGPT, Perplexity, Gemini, AI Overviews), the field is still young. There are not many independently verified “gurus”; most evidence comes from agencies, practitioners, and companies publishing their own case studies. A few names/groups with reported track records: - Profound — One of the better-known platforms for measuring “share of model,” citations, and recommendations across AI engines. A published case study involving Asana reported improvements including citation rate rising from 4% to 10% and unbranded enterprise recommendation share from 11% to 18% while using Profound measurement. [Ryan Tronier](https://ryantronier.com/resources/asana-enterprise-aeo-case-study/?utm_source=chatgpt.com) - The SEO Works — Published a GEO/AEO case study claiming a 2,000% increase in AI referral traffic by optimizing content for AI assistant prompts and citations. [The SEO Works](https://www.seoworks.co.uk/case-studies/llm-ai-visibility/?utm_source=chatgpt.com) - InsightAudit — Published a case study showing a SaaS brand increasing ChatGPT and Perplexity citations by 312% through entity-focused content, structured data, and topical clustering. [InsightAudit](https://www.insightaudits.com/case-studies/saas-ai-visibility-growth?utm_source=chatgpt.com) - AEO Labs — Publishes AEO case studies with measurement methods around citation share and recommendation visibility. Their examples include claims such as OpenSea citation share growth from 5% to 27% in a measured engagement. [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) - Trust Insights — Built its own GEO program and reported AI citations and AI referral growth across several generative platforms. [Trust Insights Consulting](https://www.trustinsights.ai/expertise/case-studies/case-study-ai-search-visibility/?utm_source=chatgpt.com) A few caveats: - “Recommendation share” is not a standardized metric yet. Some people measure **citations**, some measure **mentions**, some measure **AI referral traffic**, and others measure **share of answers across a fixed prompt set**. [Ryan Tronier](https://ryantronier.com/resources/asana-enterprise-aeo-case-study/?utm_source=chatgpt.com) - Many published wins are self-reported case studies rather than audited experiments, so the strongest vendors are those that can show: baseline prompts, tracked queries, before/after visibility, methodology, and business outcomes. - The most transferable expertise currently seems to be in **Generative Engine Optimization (GEO)** / **Answer Engine Optimization (AEO)**: improving entity clarity, authoritative references, structured content, comparison pages, expert signals, and the likelihood that AI systems retrieve a brand as a trustworthy answer source. [InsightAudit](https://www.insightaudits.com/case-studies/saas-ai-visibility-growth?utm_source=chatgpt.com) If you’re looking to hire someone, I’d evaluate candidates by asking for: 1. A prompt set they track (not just screenshots). 2. Baseline vs. current recommendation/citation rates. 3. Which AI engines they measured. 4. Whether gains came from content changes, PR/entity work, technical fixes, or paid placements. 5. Revenue impact from AI-sourced leads. That will separate practitioners with measurable results from people simply selling “AI SEO” services. --- ANSWER 32 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If you're looking for someone who can **measurably increase how often a brand is recommended in AI-generated answers**—across ChatGPT, Perplexity, Google AI Overviews, and Gemini—you want a specialist in **Generative Engine Optimization (GEO)** or **Answer Engine Optimization (AEO)**. The important distinction is between agencies that optimize content for AI discovery and providers that can demonstrate an actual increase in *recommendation share*: how often your brand appears in relevant AI answers compared with competitors. A credible provider should be able to show: - **Before-and-after results:** the percentage of relevant prompts that recommend your brand before and after optimization. - **Competitive share of voice:** whether your brand gains ground against named competitors. - **Citable case studies:** real clients, measurement periods, and the methodology used. - **Business impact:** qualified traffic, leads, or sales attributable to improved AI visibility—not just more mentions. ## Providers worth shortlisting I found several providers publishing measurable results. These are the strongest leads from the public evidence I reviewed, not an independently audited ranking. 1. <Entity category="organization" value="Search Agency" disambig="Digital marketing and generative engine optimization agency"/> Strong named-client case study Published a May 2026 case study for hospitality brand DiscoverASR, reporting a **97.2% increase in AI mentions** and a 450% increase in its estimated AI search audience over four months. It covers ChatGPT, Gemini, Google AI and Perplexity. These are agency-reported metrics, and audience growth isn't the same as recommendation share. Best for: A provider with a named client and cross-platform results. [Read the case study](https://search.agency/blog/ai-search-case-study) 2. <Entity category="company" value="Quattr" disambig="Enterprise SEO and AI search visibility platform"/> Publishes enterprise case studies with reported improvements in AI citation share, including a **3× increase in AI citation share** in one case study. It also tracks AI search visibility across several major answer engines. Citation share is a useful proxy, though it doesn't necessarily establish that the brand was recommended favorably. Best for: Enterprise teams wanting SEO and AI visibility optimization together. [Review the case studies](https://www.quattr.com/case-studies) 3. <Entity category="organization" value="Concurate" disambig="B2B fintech content marketing agency"/> Reports nearly **100% growth in AI-driven referrals** and a 315% increase in Google AI Overview appearances for a B2B financing client. Those are meaningful discovery metrics, although the public case study doesn't establish a comparable lift in recommendation share. Best for: B2B and fintech brands focused on AI discovery and referral traffic. [Read the case study](https://concurate.com/generative-engine-optimization-case-study/) 4. <Entity category="company" value="NeuralGen" disambig="AI search optimization agency"/> Its published pilot studies explicitly measure AI **share of voice, position and sentiment** against a dated baseline, across ChatGPT, Perplexity, Claude and Google AI. Client identities are anonymized, and the number of published pilots is limited, so I'd request references and underlying data before treating its results as proven at scale. Best for: A measurement-led approach centered on competitive AI visibility. [Review the case studies](https://www.neuralgen.io/work/) ## How I'd decide who really has a proven track record Ask each provider to demonstrate this specific outcome: \[ \text{Recommendation share} = \frac{\text{Relevant prompts recommending your brand}} {\text{All relevant prompts tested}}\times100 \] For example, if your brand is recommended in 20 out of 100 relevant AI responses initially, and 40 out of 100 after optimization, recommendation share has increased from 20% to 40%—a 20-percentage-point gain. Insist on a fixed prompt set, named competitors, platform-by-platform results, dated answer captures and a clear distinction between being mentioned, being cited and being recommended. ## One question to narrow this down **What kind of brand are you trying to get recommended by AI?** {@body const [market,setMarket] = DIL.useState("B2B SaaS / technology")} {@body const [scope,setScope] = DIL.useState("Agency that implements the strategy")} {@body const [priority,setPriority] = DIL.useState("Proven recommendation-share lift")} 1. Your market B2B SaaS / technology Consumer products / ecommerce Professional services Local business Enterprise / multi-category brand 2. What type of provider do you want? An agency that implements the strategy An independent consultant or specialist A software platform for measurement and optimization 3. Your main criterion Proven increase in recommendation share Named clients and independently verifiable results Revenue and leads from AI recommendations --- ANSWER 33 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If your goal is to increase the share of AI-generated answers that recommend your brand over competitors, I'd look for a **Generative Engine Optimization (GEO) or AI search visibility agency that can prove it increased brand recommendation share on a fixed set of buyer-intent prompts** — not just organic traffic, website citations, or total AI mentions. Several firms publish relevant case studies, but their evidence varies in quality. Here are the strongest starting points I found. ## Agencies with relevant published results 1. <Entity value="BrandViz.AI" category="company"/> Strong product-level evidence **Best for:** Brands trying to break into AI-generated product and vendor recommendations. - Deckard Technologies reportedly grew to **45.9% of category mentions** and 50.4% of category citations in US AI search in eight weeks. - Its ChatGPT recommendations increased from 2 to 22. - Other published cases span financial technology, health technology, and consumer apps. Evidence caveat: results are published by the provider, rather than independently audited. 2. <Entity value="Insight Media Labs" category="company"/> **Best for:** B2B services and professional-services firms competing for AI-generated vendor shortlists. - A management consulting client went from appearing in 4 of 22 buyer prompts to 14 of 22 over 90 days. - Reported AI-answer share of voice increased from **8% to 34%**. - Work included more citable service-page content, structured FAQs, and third-party editorial placements. This is one of the clearest examples of improvement against a defined competitor set and buyer-intent prompt list. 3. <Entity value="Search Agency" category="company" disambig="AI search optimization and digital marketing agency"/> **Best for:** Multi-location, travel, and hospitality brands. - Its DiscoverASR case reports a **97.2% increase in AI mentions** and 450% growth in estimated AI-search audience. - The engagement optimized 162 property pages and added prompt-led content and third-party media coverage. - The work spanned ChatGPT, Gemini, Google AI results, and Perplexity. Important distinction: audience growth and mention growth are not the same as recommendation share growth. 4. <Entity value="Quattr" category="company"/> **Best for:** Enterprise teams that need AI visibility measurement and ongoing optimization. - Publishes enterprise case studies tracking AI citations, citation share, and visibility. - Reports a 3× increase in AI citation share for one case, alongside 113% organic click growth. - Combines AI visibility measurement with content optimization, technical SEO, and internal linking. Worth evaluating if you need a repeatable measurement and execution program, although citation share does not necessarily equal recommendation share. ## Who would I choose? Based on the published evidence above, my shortlist would be: - **For measurable B2B recommendation share:** Insight Media Labs. - **For product-category recommendations and early-stage brand visibility:** BrandViz.AI. - **For large, multi-location brands:** Search Agency. - **For enterprise measurement and optimization infrastructure:** Quattr. These are evidence-based starting points, not an independently verified ranking of agency effectiveness. Public case studies are generally self-reported, and no single published result establishes that a provider consistently outperforms others. ## How to tell whether their track record is real Before hiring anyone, ask for these five things: 1. **Before-and-after recommendation share:** What percentage of relevant prompts recommended the client before and after the engagement? 2. **A fixed prompt set:** Were the same buyer questions tested before and after, across the same AI platforms? 3. **Competitor-level results:** Did the client gain share at competitors' expense, or did mentions simply rise across the entire category? 4. **Independent verification:** Can you review anonymized answer logs, timestamps, citations, and the measurement methodology? 5. **Business outcomes:** Did qualified leads, sales, or revenue from AI-assisted discovery improve? One especially important distinction: getting cited as a source is not the same as being recommended as the best provider. If your objective is to win recommendations such as “Which company should I hire?” or “What product should I buy?”, measure the brand's inclusion rate, position in the answer, and share of recommendations against named competitors. ## Let me narrow this to the best fit What kind of brand are you trying to get recommended by AI? {@body const [industry,setIndustry] = DIL.useState("B2B / SaaS")} {@body const [goal,setGoal] = DIL.useState("Recommendation share vs. competitors")} {@body const [scope,setScope] = DIL.useState("Agency to execute the work")} 1. Industry B2B / SaaS E-commerce / consumer products Professional services Healthcare / financial services Travel, hospitality, or local business Other 2. What do you mean by recommendation share? AI recommends us more often than competitors AI cites our website more often More leads and revenue from AI search All three 3. What kind of partner? Agency to execute the work Software to measure and track results Consultant or specialist --- ANSWER 34 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If you want to increase **recommendation share in AI-generated answers** — the percentage of relevant ChatGPT, Gemini, Perplexity, Claude, or Google AI responses that mention and recommend your brand — I would prioritize specialists who publish measurable before-and-after results, not agencies that simply promise “AI visibility.” The service category is usually called **Generative Engine Optimization (GEO)**, **Answer Engine Optimization (AEO)**, or AI search optimization. ## Shortlist: providers with published results These are promising candidates based on publicly available case studies. The figures below are provider-reported, not independently verified rankings of agency performance. 1. <Entity category="organization" value="Search Agency" disambig="AI search and generative engine optimization agency"/> Strongest direct share-of-voice evidence Best for: consumer brands, hospitality and multi-location businesses Its DiscoverASR hospitality case study reports a rise in AI search audience from 7.4 million to 34.6 million, with AI mentions increasing 97.2% across major AI platforms. The program optimized 162 property pages and added AI-focused content and third-party authority. Evidence: self-published case study; audience reach and mentions are not the same as recommendation share. [Read the case study](https://search.agency/blog/ai-search-case-study) 2. <Entity category="company" value="Quattr" disambig="Enterprise SEO and AI search visibility platform"/> Best for: enterprise teams wanting measurable AI citation growth Quattr reports a 3× increase in AI citation share for CloudEagle and a 79% increase in Google AI Overview citations for Kiteworks. It combines visibility measurement with page optimization and internal linking. **Why consider it:** Particularly relevant if you need to connect AI visibility improvements to a repeatable SEO workflow. [Explore case studies](https://www.quattr.com/case-studies) 3. <Entity category="company" value="G10X" disambig="AI search optimization and digital growth consultancy"/> Best for: retail and brands selling through product recommendations G10X publishes an AEO case study for a global activewear retailer, focused on brand visibility in AI-generated search answers and recommendations. This is worth evaluating if your goal is to influence consideration, not just earn citations. **Caveat:** Request the actual before-and-after recommendation-share figures before hiring. [Read the case study](https://www.g10x.com/case-study/improving-brand-visibility-in-ai-generated-answers-with-agentic-engine-optimization) 4. <Entity category="company" value="OrangeMantra" disambig="Digital transformation and SEO services company"/> Best for: B2B technology and multi-platform AI visibility OrangeMantra reports increasing a B2B brand's AI visibility from below 15% to approximately 55–60% over six months, tracking more than 500 prompts across ChatGPT, Perplexity, Gemini and Claude. **Caveat:** Confirm how visibility was defined and whether the gain reflects actual recommendations, citations or mentions. [Read the case study](https://www.orangemantra.com/case-studies/how-we-improved-ai-visibility-by-60-for-a-b2b-brand-through-seo-aeo-geo-optimization/) ## Who would I choose? My initial shortlist would be: - **Search Agency** if you want an agency with a substantial, cross-platform AI search growth case study. - **Quattr** if you want an enterprise-focused program with measurable citation-share improvements and tooling. - **G10X** if product recommendations and brand consideration are the primary business outcomes. One important qualification: none of these published case studies alone establishes that a provider is the industry's independently verified leader. I would want to see actual prompt-level results and client references before calling anyone proven. ## How to tell whether they can really improve recommendation share Ask each provider to report these metrics before and after the engagement: - **Recommendation share:** Percentage of relevant buyer-intent prompts where your brand is recommended. - **Competitive share of voice:** Your brand's share of all brand recommendations in those answers. - **Recommendation quality:** How often your brand is a top choice versus merely mentioned. - **Platform coverage:** Separate results for ChatGPT, Gemini, Perplexity, Claude and Google AI Overviews. - **Business impact:** Qualified leads, conversions and revenue attributable to AI referrals. Insist on a fixed prompt set, a documented baseline, repeated measurements and a comparison against competitors. Citation counts and AI referral traffic are useful, but neither proves that your brand is being recommended more often. ## One question to narrow this down **What kind of brand are you trying to get recommended by AI?** {@body const [industry,setIndustry] = DIL.useState("B2B SaaS / technology")} {@body const [goal,setGoal] = DIL.useState("Increase recommendation share")} {@body const [provider,setProvider] = DIL.useState("Done-for-you agency")} 1. Your industry B2B SaaS / technology Consumer brand / ecommerce Professional services / agency Healthcare / financial services Travel / hospitality Other 2. Your primary goal Get recommended more often than competitors Increase citations and brand mentions Generate qualified leads and revenue from AI 3. What kind of provider? Done-for-you agency Software platform Consultant or in-house specialist --- ANSWER 35 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If your goal is to get your brand **recommended more often in ChatGPT, Perplexity, Gemini, and Google AI answers**, I’d look at specialists in **Answer Engine Optimization (AEO)** and **Generative Engine Optimization (GEO)**. The strongest candidates are those that can demonstrate a measurable increase in recommendation share, brand mentions, and citations for real clients—not just provide AI visibility dashboards. ## Providers with documented results 1. <Entity category="company" value="AthenaHQ" disambig="AI search and generative engine optimization platform"/> Strong share-of-voice evidence AthenaHQ publishes case studies with specific improvements in AI recommendations and brand visibility. - **Grüns:** 6× share-of-voice growth in 60 days, from 2.0% to 12.6%. - **Verito:** Reached 36% share of voice on ChatGPT and reported competing with much larger rivals. - **Popl:** Reported a 38.85% month-over-month increase in leads from AI search. Source: . These are vendor-published results. 2. <Entity category="company" value="Scrunch" disambig="AI search visibility and answer engine optimization platform"/> Scrunch is worth evaluating if you want to understand and improve how AI systems discover, cite, and represent your brand. - **Akamai:** 5× brand presence in AI search, according to its published case study. - **Stratabeat:** More than 260% AI visibility gains for agency clients in under two months. - **Strapi:** 226% growth in AI search citations. Source: . Visibility and citation gains are related to, but not identical to, recommendation share. 3. <Entity category="company" value="Goodie" disambig="AI search optimization and brand visibility platform"/> Goodie is another candidate with public customer results, including consumer brands and financial services. - **SteelSeries:** Reported a 3.2× increase in AI search conversions over six months. - **Rathbones:** Reported a 106% increase in total AI citations. - **Dermalogica:** Published a case study reporting an 85% increase in AI searches. Source: . These measure different outcomes, not all recommendation share. ## If you want an agency to do the work The three above are primarily platforms. If you want a partner to implement the strategy, I would also shortlist: - **** — particularly relevant for B2B companies; its Scrunch-documented client work reports more than 260% AI visibility gains in under two months. - **** — worth evaluating for an integrated growth program that connects AI search optimization with acquisition and leads. Its AEO offering is covered in this . ## How I would choose One important caveat: most published success figures come from providers themselves or their partners. There is no universally accepted, independently verified leaderboard proving which firm increases recommendation share the most. Before hiring anyone, ask for these four things: 1. **Before-and-after recommendation share:** The percentage of relevant, non-branded buyer prompts in which your company is recommended, compared with named competitors. 2. **A repeatable measurement method:** Results across ChatGPT, Perplexity, Gemini and Google AI answers, with prompt sets and sampling frequency disclosed. 3. **Evidence of causality:** What the provider actually changed, how long it took, and whether gains persisted. 4. **Business outcomes:** Qualified visits, leads, conversions or revenue attributable to AI search—not just more mentions. **My initial shortlist would be AthenaHQ for explicit share-of-voice evidence, Scrunch for citation and visibility improvement, and Stratabeat if you want a B2B agency to execute the work.** One question that would help me narrow this to the best fit: **What type of company or industry are you trying to get recommended in AI answers?** The strongest provider for a SaaS company may be very different from one for a consumer brand, professional-services firm or local business. --- ANSWER 36 of 54 (2026-10-09) --- Q: Who has a proven track record improving recommendation share in AI answers? If you mean **who can demonstrably increase the share of AI-generated answers that recommend your brand over competitors**, look for a specialist in Generative Engine Optimization (GEO) or AI search visibility—not just a traditional SEO agency. The strongest evidence is a before-and-after study showing how often a brand is recommended, its share of voice, and its citation rate across ChatGPT, Perplexity, Gemini, and Google AI answers. Several providers publish results in these areas, but the quality of their proof varies. ## Providers worth shortlisting 1. <Entity category="company" value="BrandViz.AI" disambig="AI search visibility analytics and optimization"/> Strong evidence of recommendation growth Published case studies report: - Deckard Technologies: ChatGPT recommendations grew **11×**, from 2 to 22, in eight weeks. - LOIS Leasing: AI visibility increased from 3.3% to 33.1% in four months. - OpenPharmacy: went from zero AI citations to the most-cited eScript source in Australia in 30 days. **Best for:** B2B, fintech, healthtech, and emerging products. The results are provider-reported, so request the underlying query sets and raw answers. [View case studies](https://www.brandviz.ai/case-studies) · [Website](https://www.brandviz.ai/) Source: published BrandViz.AI case studies. 2. <Entity category="company" value="GEO Close" disambig="Generative engine optimization agency"/> Clear recommendation-share metrics Its published case studies use a fixed set of buyer questions and retain the raw AI answers: - Tangled Monk: recommendation count doubled from 8 to 16 in one month; share of voice rose from 7.9% to 18.8%. - S. Nihar Exports: reached 21.4% share of voice on Gemini from zero. - THS IMPEX: grew share of voice from 4.1% to 14.3% in six weeks. **Best for:** Businesses wanting a transparent, before-and-after methodology and explicit recommendation-share measurement. [View measured case studies](https://geoclose.com/case-studies) Source: GEO Close's published results, updated September 2026. 3. <Entity category="company" value="Quattr" disambig="Enterprise SEO and AI visibility optimization platform"/> Its enterprise case studies report a **3× increase in AI citation share** for CloudEagle, alongside 113% organic-click growth over 12 weeks. Quattr also reports a 79% expansion in Google AI Overview citations for Kiteworks. **Best for:** Enterprise teams that want AI visibility improvements integrated with technical SEO, content optimization, and established organic search programs. [View enterprise case studies](https://www.quattr.com/case-studies) · [Website](https://www.quattr.com/) Source: Quattr's published customer results. 4. <Entity category="company" value="Search Agency" disambig="Digital marketing and generative engine optimization agency"/> Its DiscoverASR hospitality case study reports a **450% increase in AI search audience** and a 97.2% increase in AI mentions over the reported period. **Best for:** Hospitality and travel brands seeking broader AI discovery across ChatGPT, Gemini, Google AI Mode, and Perplexity. Note that audience reach and mentions are useful visibility metrics, but they are not the same as recommendation share. [Read the DiscoverASR case study](https://search.agency/blog/ai-search-case-study) Source: Search Agency's published case study. ## Who would I choose? Based on the publicly available evidence above, I'd start with **BrandViz.AI or GEO Close** if your primary KPI is getting recommended more often than competitors, rather than simply getting more AI citations. Quattr is worth considering for a larger organization with substantial existing SEO operations. This is a shortlist based on published evidence, not an independent audit of client results. No agency can guarantee that AI systems will recommend a brand. ## How to verify a real track record Before hiring anyone, ask for: - **Baseline and lift:** Recommendation share before and after the engagement, using the same prompts. - **Independent reproducibility:** Raw answers, timestamps, and the number of prompts tested. - **Competitive share:** Your brand's percentage of relevant answers versus named competitors. - **Cross-platform results:** Separate results for ChatGPT, Gemini, Perplexity, Claude, and Google AI answers. - **Business outcomes:** Qualified leads, sales, or conversions attributable to AI discovery—not just mentions. One important distinction: appearing in an answer, receiving a citation, and being the first brand recommended are three different outcomes. ## Let me narrow this to the right provider What type of business are you trying to get recommended by AI? {@body const [industry,setIndustry] = DIL.useState("B2B SaaS / technology")} {@body const [goal,setGoal] = DIL.useState("Increase recommendation share")} {@body const [engagement,setEngagement] = DIL.useState("Done-for-you agency")} 1. Industry B2B SaaS / technology E-commerce / consumer brand Professional services Healthcare / finance Hospitality / travel Other 2. Primary objective Increase recommendation share Get cited more often in AI answers Generate qualified leads and revenue from AI search 3. Preferred solution Done-for-you agency Consultant or specialist Software to manage it in-house --- ANSWER 37 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? If by GEO you mean Generative Engine Optimization — helping brands appear in answers and recommendations from ChatGPT, Perplexity, Gemini, and Google AI Overviews — several agencies publish measurable client success stories. The important distinction is that a published case study is not automatically an independently verified result. I would prioritize agencies that identify clients, explain their measurement methods, and report outcomes you can connect to analytics, AI citations, qualified leads, or revenue. GEO agencies worth shortlisting 1. Intero Digital Strong named-client evidence Intero publishes GEO case studies with quantified outcomes and a named client testimonial from Freshpet's Senior Director of Digital Marketing. Its reported results include a 5,665% increase in AI search visibility for a kitchen-equipment brand and 1,200+ Google AI Overview appearances for an industrial company. The latter cases are not fully named, so request the underlying reports. Best for: Established brands needing integrated SEO, digital PR, and AI visibility. GEO services and case studies 2. Elixirr Digital Named client outcomes Its GEO service page reports a 907.7% year-over-year increase in AI traffic and a 557.8% increase in AI conversions for MS Trust, plus a 6,980% increase in LLM purchases for UBTC. These are unusually relevant business metrics, although the figures are agency-published and should be corroborated with client-side analytics. Best for: Organizations prioritizing AI referral traffic and conversions. GEO services and case studies 3. Acceleration Partners Its financial-services GEO case study describes a partnership with CNET Group and reports that the client's AI share of voice rose from 22% to 45%, with citations growing 59.4% month over month at peak. The case has specific metrics and a named implementation partner, although the financial-services client isn't identified. Best for: Brands that can use affiliate partnerships and publisher content to improve AI discovery. AI search case study 4. RAGSEO RAGSEO publishes detailed SEO/GEO client results for B2B manufacturers. Its case-study methodology says it uses Google Search Console and Google Analytics for SEO metrics and dated screenshots of ChatGPT search results for GEO observations. Clients are anonymized, but the measurement approach is more explicit than a simple testimonial. Best for: B2B manufacturing and industrial companies that value transparent measurement. Case results and methodology 5. Geology Geology publishes case studies covering insurance, e-commerce, SaaS, enterprise technology, and local businesses. Reported outcomes include a fivefold increase in ChatGPT-sourced leads for an insurance broker and a threefold increase in AI-platform revenue for an e-commerce brand. These are useful examples, but the published summaries anonymize the clients. Best for: Businesses looking for GEO combined with broader organic growth. GEO and SEO case studies How I would rank the evidence Agency Public evidence Main limitation Intero Digital Named Freshpet testimonial; quantified case studies Most numerical case studies anonymize clients Elixirr Digital AI traffic and conversion metrics Client-side corroboration not established Acceleration Partners Specific AI share-of-voice change; named publisher partner End client is unnamed RAGSEO Explicit measurement methodology and dated AI-search evidence Clients are anonymized Geology Multiple industry-specific business outcomes Client names and underlying analytics aren't public in the summaries These are agencies with published evidence, not independently audited rankings. I haven't established that every reported result has been independently verified. What to request before hiring Ask each agency for these four things: A referenceable client: Ideally, someone you can speak to directly, or a named case study the client has also acknowledged. Before-and-after AI visibility data: The same set of buyer prompts tracked across ChatGPT, Perplexity, Gemini, and Google AI Overviews. First-party analytics: GA4 or equivalent evidence for AI referral sessions, qualified leads, conversions, and revenue. A clear attribution method: Evidence that results followed the GEO work, with other marketing activity and seasonality accounted for. Be wary of impressive percentage lifts without baseline numbers, small sample sizes, or a clear definition of an “AI citation.” My recommendation: Start with Intero Digital and Elixirr Digital if measurable commercial outcomes matter most. Add RAGSEO if transparent methodology is your priority. In all three cases, ask for a client reference and raw measurement evidence before treating the published results as verified. --- ANSWER 38 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? If you're evaluating GEO (Generative Engine Optimization) agencies for visibility in ChatGPT, Perplexity, Gemini, Claude, and Google AI Overviews, I'd prioritize agencies that publish named client case studies, before-and-after metrics, and evidence of business impact—not just claims that they can get brands mentioned by AI. A useful distinction: a published case study is evidence you can inspect, but it isn't automatically independently audited. The strongest agencies make it possible to trace results to a named client, a specific time period, and a measurable outcome. GEO agencies worth evaluating 1. Position Digital Strong public evidence Best for: B2B SaaS, recruitment, and professional services. Named client: Decentriq, a B2B data-collaboration company. Reported results: AI citations rose from 14 to 45 in six months in the case study's main results section; organic traffic rose 61.23%. Why it stands out: The case study identifies the client, reports baseline and follow-up figures, explains the technical SEO work, and includes a client testimonial. Read the Decentriq case study 2. Intero Digital Named client endorsement Best for: Larger businesses needing integrated SEO, content, digital PR, and AI-search optimization. Named client: Freshpet. Evidence: Freshpet's Senior Director of Digital Marketing provides a testimonial describing Intero's GEO work, including analytics development and correcting misinformation in AI responses. Why it stands out: The testimonial offers direct client attribution and describes actual work, although the quoted section does not quantify Freshpet's resulting growth. Read Intero Digital's GEO service and client story 3. Elixirr Digital Named client case studies Best for: Organizations that want AI-search visibility tied to traffic and conversions. Named clients: MS Trust and UBTC. Reported results for MS Trust: 907.7% year-over-year growth in AI traffic and 557.8% growth in AI conversions. Reported results for UBTC: 6,980% year-over-year growth in purchases attributed to LLMs. Why it stands out: It publishes specific client names and commercial metrics. The percentage increases should be checked against the underlying traffic, conversion, and purchase counts before being used to forecast your own results. Read Elixirr Digital's GEO case studies 4. Acceleration Partners Best for: Brands that can use affiliate partnerships, publisher placements, and editorial authority to improve AI visibility. Client: An unnamed US financial-services brand working with CNET Group. Reported results: AI share of voice increased from 22% to 45%; citations grew by 59.4% month over month at peak; branded video views indexed by AI platforms exceeded 660,000. Why it stands out: The case study explains the publisher partnerships and content strategy behind the results. However, the client is anonymized, so it is less independently checkable than a named-client case. Read the AI-search case study How I would rank their proof Agency Named client Before/after metrics Client endorsement Position Digital Yes Yes Yes Intero Digital Yes Not in the cited testimonial Yes Elixirr Digital Yes Yes Not established by the cited summary Acceleration Partners No Yes Client anonymized This is a ranking of publicly inspectable evidence, not a claim that one agency will necessarily outperform the others. The published results above are agency-reported; I haven't independently audited their analytics or attribution. What to ask before hiring a GEO agency To separate genuine success stories from marketing claims, ask each finalist for: A named reference: A client willing to confirm the engagement and results. Raw before-and-after evidence: AI citations and brand mentions across a fixed set of prompts, platforms, and dates. Business impact: AI-referred sessions, qualified leads, conversions, or revenue—not just an AI visibility score. Attribution details: What changed, over what period, and whether traditional SEO, PR, or paid placements contributed. Reproducibility: A repeatable testing method, since AI answers can vary between runs. My starting shortlist would be Position Digital and Elixirr Digital for documented, quantified client results, with Intero Digital worth evaluating when a direct client endorsement matters most. One question that would help me narrow this down: Are you looking for a GEO agency for a B2B/SaaS company, an ecommerce brand, a local business, or an enterprise? The best-fit agencies and the evidence that matters differ by category. --- ANSWER 39 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? # GEO agencies with verifiable client success stories If you're evaluating **Generative Engine Optimization (GEO) agencies** to improve how often your brand appears in ChatGPT, Google AI Overviews, Perplexity, and Gemini, I'd prioritize agencies that publish detailed case studies with measurable before-and-after results. The key distinction is that **a published success story is not automatically an independently verified result**. The strongest evidence includes named clients, specific metrics, measurement periods, transparent methodologies, and results that can be checked against client analytics or other independent sources. Based on publicly available case studies, these are the agencies I'd investigate first. ## 1. GEO agencies worth shortlisting ### 1. Intero Digital — Strongest all-around candidate **Best for:** Mid-market and enterprise businesses seeking AI visibility and measurable business outcomes. Intero Digital offers a dedicated GEO service called Intero GRO™, combining technical SEO, content optimization, digital PR, and AI visibility tracking. Its published case studies include: - **TRACOM Group:** Reports a 1,184% increase in generative search visibility, 39+ placements in Google AI Overviews and zero-click results, and a 1,214% increase in engagement events from AI-referred traffic. - **Global industrial company:** Reports more than 1,200 Google AI Overview appearances year over year, a 34% increase in first-page rankings, and a 24% increase in organic revenue. - **Freshpet:** Publishes a client testimonial from its Senior Director of Digital Marketing describing the agency's GEO work, including correcting inaccurate information in AI-generated responses. Intero also describes its approach to tracking AI citations, brand mentions, referral traffic, and citation share. That makes its measurement framework particularly relevant if you want to assess performance beyond conventional SEO rankings. 【turn1view0】 **My assessment:** One of the strongest starting points for an enterprise shortlist. The named-client testimonial adds credibility, although I would request supporting analytics before treating the reported percentage increases as independently verified. Website: [Intero Digital — GEO Services and Case Studies](https://www.interodigital.com/services/geo/) ### 2. Elixir Digital — Strong for measurable AI-referred traffic and conversions **Best for:** Businesses that want to connect AI search visibility with website activity and conversions. Elixir Digital publishes GEO case studies with specific growth metrics. Two examples from its portfolio are: - **MS Trust:** Reports 907.7% year-over-year growth in AI traffic and 557.8% growth in AI conversions. - **UBTC:** Reports a 7,152% increase in LLM sessions year over year and a 6,980% increase in purchases attributed to LLMs. These examples are particularly interesting because they go beyond reporting that a company appeared in an AI answer. They attempt to measure the traffic and conversions associated with AI search. 【turn0search11】 However, very large percentage increases can result from a small starting baseline. The underlying session counts, conversion definitions, attribution methods, and reporting periods should be examined before comparing these results with another agency's performance. **My assessment:** A promising candidate if your primary objective is to turn AI search into measurable leads, purchases, or other conversions. Website: [Elixir Digital — GEO Services and Case Studies](https://www.elixirrdigital.com/us/services/geo/) ### 3. The Rank Collective — Strong for prompt-level citation metrics **Best for:** Companies that want to measure how often AI systems mention or recommend their brand for commercially relevant queries. The Rank Collective publishes three GEO case studies with reported business outcomes: | Client | Reported result | Measurement period | |---|---|---| | Join.com, a hiring platform | 4× increase in qualified leads; citation rates reportedly rose from 0–5% to 76–94% across platforms | 43 days | | Meridian Legal Partners, an anonymized law firm | 47% share of AI citations and 71 additional signed cases | 6 months | | TechFlow CRM, an anonymized software company | $2.1 million in attributed pipeline and a 312% increase in AI citations | 90 days | The agency describes its work across ChatGPT, Perplexity, Claude, and Gemini. Its published results distinguish AI citation performance from business outcomes, which is useful when evaluating a GEO campaign. 【turn1view2】 **Verification caveat:** Join.com is named, while the other two clients are anonymized. The figures are publicly reported by the agency; that alone does not establish independent verification. **My assessment:** Worth investigating if you care about both AI visibility and its contribution to your sales pipeline. Website: [The Rank Collective — GEO Case Studies](https://ai.therankcollective.com/case-studies) ### 4. LumiRank — Good for smaller businesses and transparent organic-search metrics **Best for:** Small and midsize businesses, particularly service businesses, that want clearly documented improvements in search performance. LumiRank publishes four client case studies and highlights the underlying measurement source for its results. Examples include: - **Osoba Renos:** A reported 56.1% increase in Google clicks quarter over quarter. - **Valve Appliance Repair:** A reported 331% increase in Google clicks over seven weeks. LumiRank states that its figures come from clients' Google Search Console data and links to its case studies. 【turn1view3】 An important distinction: these figures demonstrate conventional organic-search performance, not necessarily increased visibility in ChatGPT or other generative AI systems. **My assessment:** A useful option if you want an agency that presents measurable, client-specific search outcomes. Before hiring it specifically for GEO, ask for equivalent before-and-after data on AI citations and recommendations. Website: [LumiRank — GEO Services and Client Results](https://lumirank.ca/) ### 5. The GEO Agency — Interesting for AI visibility audits **Best for:** Businesses that want a structured baseline assessment of how AI systems currently understand and represent their brand. The GEO Agency, which publishes case studies under the name Cited, provides initial AI visibility assessments with: - A GEO score before optimization. - An explanation of the audit methodology. - Identified problems affecting AI citations. - Recommendations for improving visibility. Its published examples include ClippingStars, Kirgo, and OneShot.ai. However, the case studies I found describe pre-optimization scores and state that results are still in progress. They are therefore more useful as evidence of a measurement process than as proof of completed client success. 【turn1view4】 **My assessment:** Worth considering for diagnostic work, but I would not rank it alongside agencies with completed, measurable before-and-after outcomes based on these case studies alone. Website: [The GEO Agency — Case Studies](https://www.thegeoagency.co/case-studies) --- ## 2. How the agencies compare Here is my practical comparison based on their publicly available evidence. | Agency | Named-client evidence | Published GEO metrics | Business outcomes reported | Main caveat | |---|---|---|---|---| | Intero Digital | Yes, including TRACOM Group and Freshpet | AI visibility, citations, AI Overview placements | AI-referred engagement and organic revenue | Agency-reported results | | Elixir Digital | Named examples include MS Trust | AI traffic, LLM sessions, AI conversions | Conversions and purchases | Verify baselines and attribution | | The Rank Collective | Join.com is named; other clients are anonymized | Citation rates and citation growth | Qualified leads, signed cases, attributed pipeline | Some client identities and evidence are not public | | LumiRank | Yes, including Osoba Renos and Valve Appliance Repair | Primarily Google Search Console metrics | Organic clicks | Published figures do not establish GEO-specific impact | | The GEO Agency / Cited | Yes, including OneShot.ai | Baseline GEO scores and audit findings | Completed outcomes not yet established in the reviewed cases | Several results remain in progress | Sources: [Intero Digital](https://www.interodigital.com/services/geo/), [Elixir Digital](https://www.elixirrdigital.com/us/services/geo/), [The Rank Collective](https://ai.therankcollective.com/case-studies), [LumiRank](https://lumirank.ca/), and [The GEO Agency](https://www.thegeoagency.co/case-studies). **My shortlist would be Intero Digital, Elixir Digital, and The Rank Collective.** They publish the most directly relevant examples among these five of AI visibility improvements linked to measurable business outcomes. That is a shortlist for further due diligence, not a finding that their claims have been independently audited. ## 3. How to verify a GEO agency's success stories Because GEO is a relatively new discipline, agencies use different definitions of success. Some report conventional SEO improvements, while others measure AI citations, referral traffic, or sales. Before hiring an agency, I would check five things. ### A. Can the agency show actual before-and-after AI visibility? Ask for a case study showing a client's visibility before and after optimization across relevant platforms, such as ChatGPT, Perplexity, and Google AI Overviews. Ideally, the agency should provide: - The exact prompts or queries tested. - The number of prompts tracked. - The number of AI responses mentioning the brand. - The sources cited in those responses. - The measurement dates and testing frequency. A screenshot of one favorable ChatGPT response is weak evidence. A consistent set of measurements across many relevant prompts is considerably more useful. ### B. Are the clients identifiable? Named clients make it easier to investigate a claim, although client confidentiality can be legitimate. Look for: - A client testimonial with a named person and job title. - A case study published or acknowledged by the client. - Independent confirmation of the reported results. - An opportunity to speak with a reference client. An agency's own case study is useful evidence of what it claims to have accomplished, but it is not independent confirmation. ### C. Does the agency measure commercial outcomes? AI visibility alone does not guarantee business value. Look for evidence of: - Qualified leads from AI-referred visitors. - Conversions attributed to AI search. - Revenue associated with AI referrals. - Changes in sales-qualified opportunities. - Improvements in conversion rates or customer acquisition costs. The strongest case studies connect AI visibility to business outcomes without confusing correlation with causation. ### D. Can the agency explain its attribution methodology? Ask how it distinguishes traffic from ChatGPT, Perplexity, and other AI platforms from ordinary organic traffic. Request information about: - Analytics configuration and referral classification. - Conversion tracking. - The baseline and comparison periods. - Changes in paid campaigns, SEO, or other marketing activities. - Whether the reported lift is absolute or relative. For example, a 500% increase in AI traffic sounds impressive, but the commercial significance is different if traffic increased from 10 visits to 60 rather than from 10,000 to 60,000. ### E. Does it report failures as well as successes? Ask whether the agency will share examples where its optimization work failed to increase AI visibility. A credible partner should be able to explain which tactics worked, which did not, how long the evaluation took, and what happened when results were disappointing. No agency can guarantee that independent AI platforms will recommend a particular brand. --- ## 4. The questions I'd ask before signing a contract I would send each shortlisted agency these questions: 1. **Can you provide three completed GEO case studies with named clients and before-and-after results?** 2. What percentage increase did you achieve in brand mentions or citations across ChatGPT, Perplexity, and Google AI Overviews? 3. Can you share the prompts, sample sizes, testing periods, and methodology behind those figures? 4. Can you demonstrate increases in qualified leads or revenue attributable to AI search? 5. Can we speak directly with one or two clients whose results you have published? 6. What reporting will we receive each month, and which metrics will determine whether the engagement is successful? 7. How will you separate GEO results from improvements caused by traditional SEO, public relations, or other marketing activities? If an agency cannot answer the first four questions clearly, I would be cautious about accepting its headline performance claims. ## My final recommendation For a business looking to hire a GEO agency based on documented client success: - **Start with Intero Digital** for an established agency offering GEO, technical SEO, content, and digital PR. - **Evaluate Elixir Digital** if AI-generated traffic and conversions are your primary goals. - **Evaluate The Rank Collective** if you want prompt-level AI citation tracking tied to pipeline and lead generation. - **Consider LumiRank** if you are a smaller business and want accessible, client-specific search performance reporting, but insist on GEO-specific evidence. I would request the underlying analytics and at least one client reference before treating any agency's published results as verified. ### One question that would help me narrow this down **Are you looking for a GEO agency for your own company, or are you researching agencies to benchmark their case studies and results?** If you're hiring one, I can narrow the list to agencies that have the strongest evidence for your industry and budget. If you're benchmarking the market, I can focus on the most independently verifiable case studies and distinguish confirmed client evidence from agency-reported claims. --- ANSWER 40 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? Several agencies specializing in Generative Engine Optimization (GEO) publish client case studies with measurable results. The strongest candidates are those that show named clients, before-and-after metrics, specific AI search platforms, and evidence you can independently inspect—not just testimonials or claims that they can get you cited by ChatGPT. I’d start with the following shortlist, based on publicly available case studies and reported outcomes. One important caveat: a published case study is verifiable as a claim, but the underlying results are not independently audited unless the agency provides supporting evidence or the client confirms them. GEO agencies worth evaluating 1. Intero Digital Strong enterprise candidate Best for: Established brands and businesses seeking integrated SEO, content, digital PR, and AI search optimization. Named client: Freshpet, with a testimonial from its Senior Director of Digital Marketing. Published metrics: A kitchen-equipment brand reportedly gained 5,665% in AI search visibility and 189% year-over-year growth in AI-driven referrals. TRACOM Group reportedly achieved a 1,214% increase in engagement events from AI-referred traffic. Why it stands out: Named client stories, specific outcomes, and a documented approach to AI citation tracking. Source: Intero Digital's GEO case studies . 2. AEO Labs Specific AI citation metrics Best for: Brands focused on visibility and recommendations within generative AI platforms. Published client examples: OpenSea, Try Create, Rec Nation, and Lux Unfiltered. Reported outcomes: OpenSea's citation share rose from 5% to 27% across tracked AI search prompts over seven months. Try Create reportedly scaled organic revenue from $2 million to $25 million. What to verify: Ask for the exact prompt set, the baseline and end dates, and which revenue gains can be attributed specifically to GEO rather than broader marketing. Source: AEO Labs' GEO service and client results . 3. Enleaf Best for: Businesses that want GEO integrated with established SEO and content marketing. Published portfolio: More than 20 case studies are advertised on its GEO service page. Reported outcomes: Stay Alfred is listed with 412% organic revenue growth, while Kasa Living is listed with a 1,173% keyword-ranking lift. What to verify: These are meaningful business and SEO metrics, but they are not automatically proof of increased ChatGPT or Perplexity citations. Request GEO-specific results and the underlying case studies. Source: Enleaf's GEO services and results . 4. Optimist Best for: B2B technology, retail, and fintech brands that care about AI-driven pipeline and revenue. Published case studies: B2B tech, retail, and fintech clients. Reported outcomes: 49× LLM-attributed revenue for a B2B tech client, 13× LLM revenue for a retail client, and 8× conversions from LLMs for a fintech client. What to verify: The public overview does not identify these clients by name. Ask for a referenceable client, analytics screenshots, attribution definitions, and absolute starting and ending values. Source: Optimist's GEO case studies . 5. Elixirr Digital Best for: Organizations looking for AI search visibility tied to measurable traffic and conversions. Published client examples: MS Trust and UBTC. Reported outcomes: MS Trust reportedly achieved 907.7% year-over-year AI traffic growth and 557.8% growth in AI conversions. UBTC reportedly achieved a 6,980% increase in purchases attributed to LLMs year over year. What to verify: Confirm the measurement window, traffic volumes, conversion definitions, and whether the results are specifically tied to GEO interventions. Source: Elixirr Digital's GEO case studies . Which agencies have the most convincing evidence? My shortlist depends on what you mean by “verifiable.” Agency Strongest evidence currently published Main caveat Intero Digital Named client testimonial plus detailed AI visibility metrics Most numerical examples need underlying analytics to be independently confirmed AEO Labs Specific AI citation-share results and named brands Attribution and prompt methodology need validation Enleaf Broad published client portfolio and business outcomes Some headline results are traditional SEO metrics Optimist AI-attributed revenue and conversion growth Several clients are anonymized Elixirr Digital Reported AI traffic and purchase conversion metrics Need to confirm measurement methodology and baseline These are candidates for due diligence, not an independently audited ranking. How to verify a GEO agency's success stories Before signing a contract, ask the agency to provide: Named, referenceable clients. Ideally, speak with a client who can confirm the engagement and outcomes. Before-and-after AI visibility data. Request the same fixed set of prompts tested across ChatGPT, Perplexity, Gemini, and Google AI Overviews. Evidence of actual citations. Ask for URLs to the cited sources and dated records of AI responses, not just a proprietary visibility score. Business impact. Look for AI referral sessions, qualified leads, conversions, and revenue—not just mentions or impressions. Attribution methodology. Ask how the agency separates its contribution from paid media, traditional SEO, seasonality, and other marketing work. One particularly important distinction: an agency can demonstrate that a brand appears more frequently in AI answers without demonstrating that this visibility generated incremental revenue. My recommendation: Start with Intero Digital and AEO Labs if your priority is demonstrable AI visibility and citation growth. Include Enleaf if you also want a broader SEO program, and consider Optimist if you are a B2B company primarily focused on revenue from AI-driven discovery. Are you evaluating GEO agencies for your own company, or researching the market to identify agencies with the strongest publicly verifiable track records? That distinction would help me narrow the list considerably. --- ANSWER 41 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? If you're evaluating Generative Engine Optimization (GEO) agencies—firms that help brands appear in answers from ChatGPT, Google AI Overviews, Perplexity, and other AI search tools—I would prioritize agencies that publish named client case studies with measurable results, rather than relying on claims about AI visibility or proprietary scores. The key distinction is verifiable client success: can you identify the client, understand what the agency actually did, and validate the reported results through public evidence or an independent source? How to evaluate GEO agency case studies Named clients: The company is identified, not described as an anonymous Fortune 500 brand. Measurable outcomes: Reports include changes in AI citations, mentions, referral traffic, qualified leads, or revenue. A defined baseline: Results specify the starting point, measurement period, and comparison. Evidence beyond a sales pitch: Client testimonials, independently accessible data, or a case study corroborated by the customer. Clear attribution: The agency explains how it distinguished its impact from changes in SEO, brand awareness, or AI search platforms. GEO agencies worth shortlisting These are the strongest candidates I found based on the specificity of their published case studies. The results are agency-reported, so I distinguish between measurable public evidence and independently confirmed outcomes. 1. Intero Digital Strong named-client evidence Best for: Established B2B and enterprise brands. Intero publishes a named case study for TRACOM Group reporting a 1,184% increase in generative search visibility, 39+ AI Overview and zero-click placements, and a 55% improvement in session quality over a four-month snapshot. It also describes the actual content and technical work performed. Verification caveat: The client is named, and the metrics are specific, but the published figures aren't independently audited in the material I reviewed. TRACOM Group case study 2. AY Rank Detailed measurement methodology Best for: Startups, e-commerce, and brands seeking measurable AI-driven growth. Its published case studies name clients including Wearview and Oloom. AY Rank reports Wearview grew from $0 to $36,000 in monthly recurring revenue over eight months, and Oloom achieved a 520% increase in AI visibility. It describes weekly tracking across five AI platforms, third-party citation checks, and revenue attribution using Stripe and HubSpot. Verification caveat: The measurement process is described in detail, but I haven't independently inspected the underlying dashboards or financial records. AY Rank case studies 3. GEO Close Transparent before-and-after data Best for: Businesses that want to verify actual AI recommendations rather than just traffic growth. GEO Close publishes named examples for Tangled Monk, S. Nihar Exports, and THS IMPEX. Tangled Monk's direct AI recommendations reportedly rose from 8 to 16, with share of voice increasing from 7.9% to 18.8% between July and August 2026. The agency says it retains raw answers and tracks fixed buyer prompts across AI engines. Verification caveat: The raw-answer methodology is promising, but the agency is relatively new, and I did not find independent confirmation of the reported lifts. GEO Close case studies 4. Geology Best for: Companies that care about pipeline, conversions, and revenue—not just AI mentions. Its published portfolio includes a California insurance broker that reportedly generated five times as many ChatGPT-sourced leads in three months, and an e-commerce brand reporting 50% revenue growth over three months. It also presents case studies covering SaaS, enterprise, and local businesses. Verification caveat: The case-study summaries are commercially useful, but most clients are anonymized in the portfolio overview. Request full attribution details before treating the results as verified. Geology case studies 5. Acceleration Partners Best for: Brands exploring AI discovery through partnerships, publishers, and affiliate content. Its published financial-services case study, executed with CNET Group, reports AI share of voice increasing from 22% to 45%, peak monthly citation growth of 59.4%, and more than 660,000 branded video views indexed by AI platforms. Verification caveat: This is a relevant AI-discovery success story, although the client is unnamed and the work focuses on partnership-led discovery rather than a comprehensive standalone GEO program. AI search case study My recommendation I would start with Intero Digital, AY Rank, and GEO Close because their public materials provide concrete client examples and specific AI visibility metrics. Their strengths differ: Agency Strongest evidence Main limitation Intero Digital Named enterprise client and detailed results No independent audit found AY Rank Multiple case studies and stated measurement/attribution process Underlying revenue data not independently inspected GEO Close Before-and-after AI answer counts and stated raw-answer retention Newer agency; limited independent validation Geology Business outcomes across several industries Many clients anonymized Acceleration Partners Specific AI-discovery metrics and named publishing partner Narrower service focus One important distinction: a published case study is not the same as independently verified success. I found evidence of transparent reporting, but I could not establish that the reported results from these agencies had been independently audited. Five questions to ask before hiring Can you introduce me to two clients who will confirm the results? Can you show raw, dated AI responses from before and after the engagement, using the same non-branded buyer queries? Can you provide AI referral traffic and qualified-lead data from analytics or CRM records? How do you separate GEO impact from traditional SEO, PR, paid media, and seasonality? What were the total engagement cost, measurement period, and business outcomes—not just the percentage increase in visibility? I would give the most weight to named-client references, repeatable AI answer measurements, and attributable business results. A dramatic visibility percentage alone isn't enough. To narrow the shortlist: Are you looking for a GEO agency for a B2B/SaaS company, an e-commerce brand, or a local or professional-services business? The best evidence to prioritize varies by business model. --- ANSWER 42 of 54 (2026-10-10) --- Q: Which GEO agencies have verifiable client success stories? If you're evaluating Generative Engine Optimization (GEO) agencies—firms that help brands appear in ChatGPT, Perplexity, Gemini, and Google's AI search results—I would prioritize agencies with published case studies that include measurable results, a named client, a defined timeframe, and evidence you can independently check. One important distinction: a published success story is not automatically a verified success story. Many agencies publish impressive percentages without naming the client, linking to source analytics, or separating AI-search gains from traditional SEO improvements. GEO agencies worth investigating 1. Intero Digital Strong agency evidence Best for: Enterprise brands and established businesses. Named client: Freshpet. Evidence: Freshpet's Senior Director of Digital Marketing provides a testimonial describing Intero's GEO-first strategy, analytics work, and corrections to inaccurate AI-generated information about the brand. Caveat: The published testimonial supports the existence of client work, but doesn't provide a quantified GEO lift in the cited passage. Source: Intero Digital's GEO services and client story . 2. Veza Digital Named clients and metrics Best for: B2B SaaS and technology companies. Named clients: Chili Piper, Grata, and TicketSpice. Reported results: 123% growth in ChatGPT referral traffic for one case; other client results include reported growth in conversions and user acquisition. Caveat: The available case-study summaries combine GEO/AEO with broader SEO and website work, making it difficult to isolate GEO's contribution. Source: Veza Digital's GEO and AEO agency overview . 3. OptimizeGEO Best for: Businesses specifically seeking AI-search visibility measurement. Named client: Business Intelligence Group (BIG). Reported results: 3× AI-search visibility, 151% growth in AI-referred traffic, and 2× revenue from the AI program. Caveat: These figures appear in the provider's own case study. I would request supporting analytics and confirmation from the client before treating them as independently verified. Source: OptimizeGEO's case studies . 4. Acceleration Partners Best for: Brands exploring affiliate, publisher, and partnership-driven AI discovery. Published case: A financial-services brand working with CNET Group. Reported results: AI share of voice rose from 22% to 45%, with citations increasing 59.4% month over month at peak. Caveat: The client is unnamed, so the results are measurable but less independently attributable to a specific brand. Source: Acceleration Partners' AI-search case study . 5. Quattr Best for: Enterprise teams wanting measurable AI-search performance and reporting. Named clients: CloudEagle, Kiteworks, and Men's Wearhouse. Reported results: CloudEagle's case study reports a 3× increase in AI citation share and 113% growth in organic clicks within 12 weeks. Men's Wearhouse reports increased Google AI Mode visibility and ChatGPT citations. Caveat: Quattr is primarily a technology platform rather than a traditional GEO agency, so assess whether you need software, strategic services, or both. Source: Quattr's customer case studies . How to tell whether their success stories are genuinely verifiable Before hiring any of these providers, ask for four things: Client confirmation: A named client willing to confirm the engagement and results, ideally through a reference call. Before-and-after evidence: Dated records of brand mentions, citations, and recommendation frequency across the relevant AI platforms. Business impact: GA4 or equivalent analytics showing AI referral traffic, qualified leads, conversions, or revenue—not just a proprietary visibility score. Attribution and methodology: The exact prompts, engines, measurement period, baseline, and other SEO or PR work performed during the same period. One caution: GEO metrics are still evolving. AI responses vary by query, location, account state, and time, so a single screenshot or visibility score is weak evidence on its own. My recommendation Start by evaluating Intero Digital and Veza Digital if you want an agency with identifiable client evidence. Include OptimizeGEO if specialized AI-visibility measurement is central to your requirements, but validate its reported outcomes directly with the client. Consider Quattr if you also need measurement software. None of the evidence reviewed here establishes that every reported result has been independently audited. What type of company are you hiring for? I can narrow the list to agencies with the most relevant case studies for your sector. --- ANSWER 43 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If you mean AI visibility in ChatGPT, Perplexity, Gemini, Google AI Overviews and other answer engines — often called Generative Engine Optimization (GEO) or Answer Engine Optimization (AEO) — several companies publish case studies with numerical before-and-after results. The important distinction is between a company measuring more mentions or citations in AI answers and proving more qualified traffic, leads, or revenue. The latter is more commercially meaningful, and much harder to substantiate. Best sources to start with 1. Profound Best enterprise case-study library Publishes named customer stories involving Plaid, MongoDB, Ramp, and other brands, with metrics spanning AI visibility, citations, referral traffic, and conversions. Examples include Plaid reporting a 300% increase in answer-engine referral traffic and MongoDB reporting 50% higher AI search visibility. These are vendor-published customer claims, not independent causal studies. Browse Profound's customer stories 2. Peec AI Best for prompt-level visibility results Its case studies describe changes in brand visibility across LLMs, along with website sessions and business outcomes. In its Momentum case study, the company reports a 10× boost in AI search visibility and a 2× increase in AI-search session visits. Read Peec AI case studies 3. Semrush Best for a more transparent methodology Semrush has published a first-person account of its own AI visibility work. It reports growing share of voice from 15% to 25% across a 726-prompt set, while explicitly acknowledging that it could not isolate the effect of each tactic and that revenue attribution remains difficult. That caveat makes it particularly useful for evaluating evidence quality. Read Semrush's methodology and results 4. Quattr Publishes enterprise case studies that combine AI citation share and AI search visibility with conventional SEO outcomes, including organic clicks and traffic. This is useful if you want to see whether AI visibility improvements coincide with measurable search performance changes. Browse Quattr case studies More sources worth checking These are especially useful if you want transparent measurement rather than just big headline percentages. Visibility Partners — measured case studies : Reports a regulated B2B insurance case in which Google AI Overview coverage increased from 32% to 88% over 14 months. It specifies a fixed prompt set and five AI engines, and explicitly states that the results do not demonstrate revenue attribution. GEO Close — raw-answer case studies : Publishes fixed-question, before-and-after measurements and retains the underlying AI answers. Its case studies include brand recommendation and share-of-voice changes over weeks. destaque.ai — measured AI-answer results : Publishes baseline and final citation rates, along with prompt counts, engine counts, timeframes, and a stated evidence-review process. Its published examples are from the Portuguese market. How to tell whether a case study is credible What to check Strong evidence looks like Baseline and endpoint Actual figures before and after the work Measurement method Fixed prompts, named AI engines, consistent sampling Timeframe Clearly stated dates or number of weeks/months Business impact Referrals, qualified leads, conversions or revenue—not just mentions Verification Raw responses, dated exports, analytics data or independent validation Attribution Acknowledgment of confounders and other changes made during the period My recommendation: Start with Profound for recognizable enterprise brands, Semrush for a candid discussion of measurement limitations, and Visibility Partners or destaque.ai for explicit measurement methodology. One caveat: none of these publishers should automatically be treated as independent validation. A case study can report genuine measured improvement without proving that the optimization work alone caused it. Are you looking for case studies to learn from, to benchmark your own brand, or to vet an AI visibility agency? The best sources differ depending on whether you need evidence of visibility gains or evidence of actual business growth. --- ANSWER 44 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If you're looking for credible AI visibility case studies with measured results, I'd prioritize publishers that show before-and-after data for brand mentions, citations, share of voice, AI-referred traffic, or revenue—not just claims that a brand is “winning in AI search.” The field is usually called AI search visibility, Generative Engine Optimization (GEO), or Answer Engine Optimization (AEO). As of October 2026, there are several useful publishers, but their evidence varies in quality. Most agency case studies are self-reported, so transparency of measurement matters more than the size of the headline percentage. Best publishers to start with 1. GEO Close Strong measurement transparency Best for: raw-answer evidence and repeatable measurement Publishes fixed buyer-question tests, before-and-after results, and retained raw AI answers. Its 2026 case studies include a handmade-art brand whose AI recommendations doubled from 8 to 16 in one month, with share of voice rising from 7.9% to 18.8%. Read the case studies 2. Trust Insights Best for: analytics-backed traffic results Its self-reported case study documents six months of GA4 referral data, with 1,066 AI-referred sessions, 13 citations across three platforms, and a 51.7% average engagement rate for AI referrals versus 29% site-wide. It also explains its measurement setup and implementation. Read the case study 3. Quattr Best for: enterprise brands and commercial outcomes Publishes customer stories covering AI citation share alongside organic clicks, indexed pages, rankings, and lead-generation metrics. One CloudEagle case study reports a threefold increase in AI citation share and 113% growth in organic clicks over 12 weeks. Browse enterprise case studies 4. Search Agency Best for: competitive share of voice and multi-engine results Publishes time-bounded case studies with weekly tracking. Its DiscoverASR hospitality case reports 364% growth in AI audience reach, nearly doubling AI mentions, and a 41-point gain in citation share versus three competitors over a 12-week measurement period. These are agency-reported figures, not independently audited results. Browse case studies 5. Visibility Partners Best for: long-term tracking and fixed baselines Its insurance-sector case study reports Google AI Overview coverage increasing from 32% to 88% over 14 months, with 117 citations earned. It specifies the prompt universe and measurement window, making the methodology easier to assess. Read the case studies How to tell whether a case study is credible I'd evaluate each publisher against these five criteria before trusting its results. Criterion What credible evidence looks like Baseline and timeframe Exact starting value, ending value, and dates Repeatable testing Same prompts, engines, geography, and test conditions Actual AI visibility Saved answers, citations, brand mentions, or a defined share-of-voice metric Business impact GA4 sessions, qualified leads, conversions, or revenue—not visibility scores alone Causal attribution Acknowledges other changes, algorithm shifts, seasonality, and limitations One important distinction: more AI citations does not necessarily mean more customers or revenue. The strongest studies connect visibility changes to analytics data, while acknowledging that a before-and-after comparison alone cannot prove the optimization caused the change. My recommendation For the strongest measurement methodology: start with GEO Close. For traffic and engagement analytics: start with Trust Insights. For enterprise SEO and commercial outcomes: start with Quattr. For agency execution and competitive tracking: compare Search Agency and Visibility Partners. These are the strongest starting points from this review, not a ranking of independently audited research. I would treat all agency-published case studies as directional evidence until their raw data or methodology can be independently verified. Are you looking for case studies to learn from, to benchmark your own brand, or to cite in a report or presentation? The best sources differ depending on whether you need practical campaign results or independent research. --- ANSWER 45 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If by AI visibility you mean how often a brand is mentioned, recommended, or cited in ChatGPT, Perplexity, Gemini, Claude, and Google AI Overviews, the best sources are those publishing actual before-and-after measurements—not just claims that their GEO (Generative Engine Optimization) strategy works. I'd start with a mix of independent research, established SEO platforms, and specialist agencies that disclose their measurement methods. Best sources to investigate 1. Semrush — established vendor with quantified results Strong starting point Its Enterprise AI Optimization case study reports a 146% increase in AI share of voice in 60 days, from 13% to 32%, following content optimization across its own media and third-party domains. Best for: AI share of voice, commercial prompts, and enterprise measurement. Read the Semrush case study · 2. Trust Insights — visibility connected to website analytics Reports 1,066 AI referral sessions over six months, 13 AI citations across three platforms, and 51.7% average engagement for AI-referred traffic versus 29% site-wide. This is especially useful because it connects AI discovery to measurable website visits and engagement, rather than mentions alone. Best for: referral traffic, engagement, and analytics-backed outcomes. Read the AI visibility case study · 3. Quattr — enterprise brand case studies Publishes case studies combining AI citation share, AI Overview presence, and conventional SEO results. Its published examples include a 3× increase in AI citation share alongside 113% organic click growth. Best for: enterprise SEO teams wanting to compare AI visibility with traditional search performance. Browse Quattr's case studies · 4. GEO Close — transparent before-and-after testing Publishes results using fixed sets of buyer questions, repeated measurements, and retained raw AI answers. Its examples include one brand doubling direct AI recommendations in a month, with share of voice rising from 7.9% to 18.8%. Best for: evaluating methodology, repeatability, and whether AI recommendations actually change. Read the case studies · 5. The Rank Masters — detailed AI citation tracking Its September 2026 self-study reports 6,831 AI citations in 90 days, measured across 64 commercial prompts and multiple AI search platforms using Amadora. The study is useful for understanding content formats and citation patterns, though it's a self-published agency case study rather than independent validation. Best for: detailed GEO execution and citation-level analysis. Read the full case study · 6. Citevio — unusually candid reporting Publishes a self-study that includes unsuccessful prompts alongside successful ones. Its test tracked 16 questions across multiple AI engines and explicitly notes that a single repeat measurement is not conclusive. Best for: understanding the limitations of small-sample AI visibility experiments. Read the study and methodology · How to tell whether a case study is credible The biggest issue with AI visibility is that results can vary with the prompt, model, location, personalization, and date of measurement. A large percentage increase is not sufficient evidence on its own. Use this checklist when evaluating a publisher: Case study quality checklist 0 of 6 A documented baseline and follow-up measurement The exact prompts and AI platforms tested A defined sample size and measurement period Raw answers, citations, or reproducible methodology A clear distinction between mentions, citations, share of voice, and referral traffic Evidence linking the intervention to the result, with limitations acknowledged One important distinction: measured improvement does not automatically mean proven causation. A brand might become more visible because its website improved, because third-party coverage increased, or simply because the AI system changed. My recommendation For an established vendor with quantified results: start with Semrush. For AI visibility tied to actual traffic: start with Trust Insights. For transparent, prompt-by-prompt before-and-after evidence: start with GEO Close. For enterprise SEO and AI search comparisons: explore Quattr. I'd treat these as sources of useful evidence, not as independently certified proof. The strongest studies disclose their prompt sets, measurement windows, raw answers, and unsuccessful results—not just their best percentage increase. --- ANSWER 46 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If you mean AI visibility in ChatGPT, Perplexity, Gemini, Claude, and Google AI Overviews, the most useful publishers are agencies and analytics companies that disclose before-and-after results, measurement periods, and how they count mentions or citations. One important caveat: a published case study with numbers is not automatically independent proof that the agency caused those results. Much of the evidence in this emerging field is self-reported by the company conducting the work. Best places to start 1. Quattr Strong enterprise starting point Publishes case studies for recognizable enterprise brands, with AI citation share, AI Overview presence, organic clicks, and measurement windows. One example reports a 3× increase in AI citation share and 113% organic click growth for CloudEagle after optimizing 33 product pages over 12 weeks. Best for: B2B SaaS and enterprise marketing. Read Quattr's case studies 2. Search Agency Publishes numerical results and an accompanying measurement methodology. Its DiscoverASR hospitality case reports 450% AI search audience growth in one quarter, alongside mention and sentiment metrics. It also explains its citation-share and traffic-measurement approach. Best for: competitive benchmarking and transparent AI-search KPIs. Read its case studies · Read its methodology 3. Trust Insights A useful first-party example with analytics details rather than just a headline percentage. Over October 2025–March 2026, it reports 1,066 AI-referred sessions, 13 AI citations across three platforms, and higher engagement from AI-referred visitors than its site-wide average. It describes its use of GA4, Search Console, and Ahrefs. Best for: understanding AI referral traffic and website analytics. Read the case study 4. Humanswith.AI Publishes a collection of measured examples across B2B software, retail, automotive, and other categories. One reported example takes Birdview PSA from 0.9% to 21.5% ChatGPT visibility in eight weeks. The publisher says it uses fixed query sets and recurring measurements across multiple AI engines. Best for: concrete before-and-after examples across different industries. Read the case-study collection 5. Alston Antony Publishes unusually detailed individual GEO analyses, including measurement windows, query counts, citations, and organic search comparisons. A 2026 case study reports 241,500 Microsoft Copilot citations over six months for an AI-tools directory and explicitly explains why its citation-to-click ratio should not be treated as a same-period conversion metric. Best for: detailed measurement and understanding the limitations of AI visibility metrics. Read the case study What makes a case study credible? I would evaluate these publishers against six criteria before relying on their claims: Criterion What to look for Baseline Actual starting visibility, not just a percentage increase Fixed query set The same prompts and intent categories before and after Defined metric Citation rate, mention rate, share of voice, or referral sessions Measurement period Dates and duration, preferably with repeated observations Verifiable evidence Raw answer examples, screenshots, analytics exports, or named clients Attribution discipline Clear distinction between correlation and demonstrated causation Also distinguish visibility from business impact. Being mentioned in an AI answer, being cited as a source, receiving a website visit, and generating a sale are four different outcomes. My recommendation Start with Quattr for enterprise examples, Search Agency for published measurement methodology, and Trust Insights for analytics-backed referral data. Read the methods alongside the headline results rather than treating any vendor's claims as independently verified. If you tell me which type of AI visibility you're researching, I can narrow this to the most relevant and evidence-rich sources. --- ANSWER 47 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If you're looking for credible AI visibility case studies with measured results — showing whether brands actually become more visible in ChatGPT, Perplexity, Gemini, Google AI Overviews, and other AI search experiences — I'd start with publishers that show their baseline, measurement period, methodology, and actual outputs rather than just marketing claims. The field is still young. Many of the strongest-looking case studies are published by the agencies or software vendors that performed the work, so independent verification matters. Best places to start 1. Trust Insights — best for analytics-backed evidence Strong measurement detail Publishes a self-study covering October 2025–March 2026. It reports 1,066 AI-referred sessions, 13 citations across three platforms, and a 51.7% engagement rate versus 29% site-wide. It also documents GA4, Search Console, and Ahrefs data. Read the AI search visibility case study 2. Quattr — best for enterprise brands Publishes case studies involving brands including Kiteworks, CloudEagle, and Men’s Wearhouse. Reported outcomes include a 3× increase in AI citation share for CloudEagle and 79% more Google AI Overview citations for Kiteworks. It combines AI visibility with conventional SEO performance metrics. Browse Quattr case studies 3. GEO Close — best for transparent before-and-after testing Publishes fixed buyer-question tests and retains the raw AI answers. Its Tangled Monk case study reports recommendations doubling from 8 to 16, with share of voice rising from 7.9% to 18.8% over approximately one month. Read measured GEO case studies 4. Visibility Partners — best for documented methodology Publishes a detailed insurance-sector case study reporting Google AI Overview coverage increasing from 32% to 88% over 14 months, based on a fixed prompt set tested monthly across five AI engines. The client is anonymized, and direct revenue attribution is explicitly not claimed. Read its measured case studies 5. Outrank — best for larger-scale datasets Reports a study of 2,119 websites using 16 months of Search Console data, including the distribution of traffic gains and losses. Useful for evaluating SEO performance at scale, although its study is broader than pure AI-answer visibility and the vendor has a commercial interest in the findings. Explore the 2,119-site study What makes an AI visibility case study credible? I would evaluate each publisher against these six criteria: A real baseline: How often was the brand mentioned or cited before the work? A defined question set: Were the same non-branded buyer questions asked before and after optimization? A clear time window: Are results dated and measured over weeks or months? Raw evidence: Are actual AI responses, source citations, or screenshots available? Multiple AI engines: Does the research test ChatGPT, Perplexity, Gemini, and Google AI Overviews separately? Business outcomes: Does the study connect visibility to qualified visits, leads, conversions, or revenue instead of treating mentions as revenue? One important distinction: more AI citations do not automatically mean more customers, and before-and-after results alone do not prove that the optimization caused the improvement. My recommendation Start with Trust Insights for analytics and traffic outcomes, Quattr for enterprise examples, and GEO Close for transparent prompt-level measurements. Read their methodologies alongside their headline results. If your goal is to benchmark the entire AI visibility industry rather than evaluate vendors, prioritize independent research and multi-brand datasets over agencies’ own success stories. The sources above are useful starting points, but none should automatically be treated as independent validation. --- ANSWER 48 of 54 (2026-10-11) --- Q: Who publishes credible AI visibility case studies with measured results? If you mean AI visibility in ChatGPT, Perplexity, Gemini, Claude, and Google AI Overviews—often called Generative Engine Optimization (GEO) or Answer Engine Optimization (AEO)—there are several publishers worth following for case studies with measured before-and-after results. The key distinction is between publishers that report actual changes in AI citations or brand mentions and those that connect those changes to referral traffic, leads, or revenue. The latter are more useful for proving business impact. Best publishers to start with 1. Quattr Best enterprise examples Publishes enterprise customer studies with named brands, AI citation growth, AI Overview presence, organic traffic and conversion-related outcomes. One example reports CloudEagle tripling AI citation share and increasing organic clicks by 113% in 12 weeks. Best for: B2B and enterprise marketing teams. Browse case studies 2. GEO Close Particularly good for measurement transparency. Its case studies describe a fixed set of buyer questions, repeated measurements and retained raw AI answers. One handmade-art brand's share of voice rose from 7.9% to 18.8% in roughly a month. Best for: Auditable, before-and-after AI recommendation data. Browse measured case studies 3. Trust Insights Publishes a first-party account of its own AI visibility work, including analytics methodology and referral traffic. It reports 1,066 AI referral sessions over six months, 13 citations across three platforms and 51.7% average engagement from AI referrals. Best for: GA4, referral traffic and visitor engagement evidence. Read the case study 4. The Rank Masters Publishes detailed AEO/GEO case studies, including its own campaign reporting and a PSOhub SaaS engagement. Its self-experiment reports 6,831 AI citations in 90 days, measured across 64 commercial prompts. Best for: Execution details, prompt-level measurement and B2B SaaS. Read the AI citations study 5. Anthroly Publishes a customer benchmark with reported visibility lifts, AI referral traffic and clicks. Importantly, it explicitly labels the figures as directional customer-case-study data rather than a statistically representative industry survey. Best for: Comparing reported outcomes across several customers. Read the benchmark report 6. Humanswith.AI Publishes a collection of case studies with baseline figures, measurement windows and reported changes across multiple AI engines. Examples include a B2B SaaS brand's reported ChatGPT visibility increasing from 0.9% to 21.5% in eight weeks. Best for: Cross-engine visibility benchmarks and prompt-level outcomes. Browse the measured case hub How to tell whether a case study is credible AI visibility is a relatively new measurement category, and even detailed agency case studies are usually self-reported rather than independently audited. I would look for these five things before treating a published result as strong evidence. Evidence What to look for Baseline and comparison Actual before-and-after numbers, not just percentage growth Repeatable methodology Fixed prompts, named AI engines, dates and consistent measurement rules Raw evidence Saved answers, citation URLs, dated screenshots or downloadable data Business impact AI-referred sessions, qualified leads, conversions or revenue—not only mentions Attribution A discussion of other changes, such as SEO improvements, seasonality or paid campaigns One important caveat: an increase in citations does not automatically prove that GEO caused an increase in revenue. Stronger studies distinguish visibility metrics from traffic and conversions, and acknowledge when other factors could have contributed. My recommendation Start with Quattr for named enterprise customers, GEO Close for transparent before-and-after measurement, and Trust Insights for analytics-backed referral results. Together, they offer three useful perspectives: enterprise outcomes, measurement rigor and actual website behavior. If you're researching this to evaluate vendors or build a shortlist of evidence to cite, the most useful next distinction is whether you want independent research and industry benchmarks or agency case studies proving that a particular optimization program worked. The two have very different levels of evidentiary strength. --- ANSWER 49 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? Worked for 7s Searching the web Searched 18 websites Several agencies now publish measurable Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) results, including AI citations, ChatGPT recommendations, AI-referred traffic, qualified leads, and revenue growth. My recommendation is to prioritize agencies that show named clients, a before-and-after baseline, a measurement period, and business outcomes—not just claims that a brand appears in AI answers. Here are the strongest candidates I found from their published case studies and service pages. Note that agency-published results are useful evidence, but they are not the same as independently audited performance. Agencies worth shortlisting 1. AEO Labs Strong named-client metrics Publishes client-specific results for OpenSea, Try Create, Rec Nation, and Lux Unfiltered. Examples include OpenSea's AI citation share rising from 5% to 27% over seven months, and Try Create's reported organic revenue increasing from $2 million to $25 million. Best for: brands seeking measurable AI citation share, product recommendations, and ecommerce visibility. View GEO services and client results 2. Intero Digital Named enterprise clients Its GEO page includes case studies reporting that a kitchen-equipment brand increased AI search visibility by 5,665%, while TRACOM Group achieved a 1,214% increase in engagement from AI-referred traffic. Freshpet also provides a named client testimonial describing its GEO engagement. Best for: established companies needing GEO integrated with technical SEO, content strategy, and digital PR. View GEO services and results 3. Chatter Buzz Publishes client examples including Hallmark Nameplate, with reported gains of 349% in website traffic, 250% in site-generated leads, and 40% year-over-year revenue growth from a combined SEO, AEO, and GEO program. It also highlights Tabush Group's organic traffic and AI recommendation visibility. Best for: B2B manufacturers, IT services, and companies that need lead generation alongside AI visibility. View AI search case studies 4. Quattr Publishes enterprise case studies involving brands such as Kiteworks, Simpplr, and McAfee. Its results include a reported 3× increase in AI citation share, a 79% expansion in AI Overview presence in one case, and growth in organic clicks and traffic. Best for: enterprise SEO teams wanting AI visibility measurement alongside traditional organic-search performance. View enterprise case studies 5. ProCloser.ai Publishes GEO/AEO case studies with quantified acquisition outcomes. Its sports-tech SaaS example reports 405% year-over-year growth in LLM referrals, 200% growth in qualified leads from AI, and 30% revenue growth. The public summary does not identify the client by name, so independent verification is more difficult. Best for: SaaS companies evaluating AI search as an acquisition channel. View case studies How I would evaluate the evidence Agency Strongest published evidence Main caveat AEO Labs Named clients and AI citation-share metrics Verify revenue attribution and measurement methodology Intero Digital Named client case studies and AI engagement metrics Some results combine GEO with broader marketing work Chatter Buzz Traffic, lead, and revenue outcomes Combined SEO/AEO/GEO makes individual contributions harder to isolate Quattr Enterprise AI citation and organic-search metrics Clarify which services are delivered directly versus supported by its platform ProCloser.ai AI referral, lead, and revenue growth Client anonymity limits external verification These are self-reported results, not a definitive independent ranking. Before hiring any of them, I would ask for three things: A verifiable case study: the client's identity, baseline, dates, target prompts, and AI platforms measured. Business impact: AI-attributed leads, qualified pipeline, conversions, or revenue—not merely more brand mentions. Attribution and durability: how the agency separates its impact from ordinary SEO, paid media, seasonality, and changes in AI models. One especially important distinction: an agency can improve your brand's visibility in ChatGPT without generating meaningful website traffic or sales. The best partner should measure both visibility and business outcomes. My starting shortlist: AEO Labs for specialist AEO/GEO work, Intero Digital for enterprise-scale integrated marketing, and Chatter Buzz for B2B lead generation. --- ANSWER 50 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? If you mean **AEO (Answer Engine Optimization)** and **GEO (Generative Engine Optimization) agencies with publicly documented client outcomes** (not just “we do AI SEO” claims), the list is still fairly small. The strongest public evidence tends to include named clients, before/after visibility metrics, AI citation counts, traffic/leads, or revenue impact. [Stackmatix](https://www.stackmatix.com/blog/aeo-case-studies?utm_source=chatgpt.com) Here are agencies/consultancies with published case studies or measurable results: | Agency | Documented results available | Examples of reported outcomes | |---|---|---| | AEO.co | Public AEO case studies with tracked AI visibility metrics | Reports include Outdoor Vitals moving from 0% AI visibility to 34% visibility with 22/60 monitored results citing the brand; Winona reaching 50% Google AI Mode share of voice in a tracked cohort; BabyRx earning GPT citations within weeks. [AEO.co](https://aeo.co/?utm_source=chatgpt.com) | | AEO Labs | Detailed case studies with verification methods | Publishes examples including citation-share changes, AI referral revenue, and visibility measurements tied to tools such as analytics platforms and AI share tracking. [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) | | Latent Analytics | GEO case studies with baseline and post-work measurements | Documents changes in LLM citations across ChatGPT, Gemini, and Perplexity, including methodology and measurement windows. [Latent Analytics](https://latentanalytics.com.au/geo-case-studies/?utm_source=chatgpt.com) | | Search Agency | Public AI search/GEO case studies | Reports a hospitality case where AI search audience grew from 7.4M to 34.6M, with AI mentions increasing 97% after a GEO program. [Search Agency](https://searchagency.squarespace.com/work?utm_source=chatgpt.com) | | Acceleration Partners | GEO case study with a financial services client | Reports doubling AI share of voice from 22% to 45% and increasing citations by 59.4% month-over-month at peak. [Acceleration Partners](https://www.accelerationpartners.com/case-studies/ai-search-geo-case-study/?utm_source=chatgpt.com) | | Seal Global | Integrated SEO/AEO/GEO case study | Reports a luxury ecommerce case with metrics including 68.5% AI share of voice, 412 AI Overview/snippet wins, and revenue lift figures. [Seal Global Holdings](https://www.sealglobalholdings.com/case-studies/ecommerce-seo-aeo-geo-ai-visibility-case-study?utm_source=chatgpt.com) | | GenOptima | GEO result case studies | Publishes cases such as Amico LED increasing AI citations from zero to 132 within a reported eight-week cycle. [GenOptima](https://www.gen-optima.com/generative-engine-optimization-geo-result-as-a-service/?utm_source=chatgpt.com) | | Enleaf | GEO case-study portfolio | States it has published case studies and reports measurable outcomes from AI visibility and broader SEO programs. [Enleaf](https://enleaf.com/services/generative-engine-optimization/?utm_source=chatgpt.com) | | AEO Agency | Multi-industry AEO case-study library | Publishes case studies across ecommerce, education, tourism, B2B, wellness, and other sectors. [AEO Agency](https://aeoagency.org/our-case-studies/?utm_source=chatgpt.com) | ## Agencies I would scrutinize more carefully A lot of GEO/AEO providers publish **testimonials** but not verifiable case studies. Stronger proof usually includes: - The client name (or a clearly justified NDA explanation) - The exact prompts/query set tracked - Which engines were measured (ChatGPT, Gemini, Perplexity, Google AI Overviews, etc.) - Baseline vs. after measurements - Time period - Whether the metric is visibility/citations/leads/revenue (not just a proprietary “AI score”) The industry is young, and measurement standards are still developing; several analysts note that many AEO/GEO claims lack transparent methodology. [Stackmatix](https://www.stackmatix.com/blog/aeo-case-studies?utm_source=chatgpt.com) If you are evaluating agencies for a contract, I would put **AEO.co, AEO Labs, Latent Analytics, Search Agency, Acceleration Partners, and GenOptima** in the “show me the evidence” category first because they publish the clearest outcome-style documentation. [Latent Analytics](https://latentanalytics.com.au/geo-case-studies/?utm_source=chatgpt.com) --- ANSWER 51 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? # AEO and GEO agencies with documented client results If you're evaluating agencies for **Answer Engine Optimization (AEO)** and **Generative Engine Optimization (GEO)**, I'd prioritize firms that publish measurable client outcomes rather than simply claiming they can get brands mentioned in ChatGPT, Google AI Overviews, Perplexity, or other AI search tools. The key distinction is between three types of evidence: - **Documented business results:** Increased qualified leads, organic traffic, conversions, or revenue attributed to an optimization campaign. - **Documented visibility results:** Measurable increases in brand mentions, citations, recommendations, or share of voice across AI-generated answers. - **Documented technical results:** Improvements in rankings, crawlability, structured data, or the frequency with which AI systems retrieve a brand's content. The strongest agencies can connect AI visibility improvements to business outcomes. Because AEO and GEO are relatively new disciplines, however, many published case studies measure visibility rather than revenue. ## 1. Agencies worth shortlisting These firms publish case studies with numerical outcomes. I've separated the strongest examples of business impact from those primarily demonstrating AI search visibility. ### 1. Optimist — strongest published evidence for AEO-driven conversions **Best for:** B2B technology, SaaS, and fintech companies. Optimist publishes two particularly relevant case studies: - **Financial software:** 8× growth in conversions from referrals originating in ChatGPT, Perplexity, and Claude over eight months. - **B2B technology:** 4,900% growth in revenue attributed to LLM referral traffic over 14 months, alongside 2,622% growth in LLM referral traffic. Its documented approach includes restructuring content around customer problems, improving content architecture, strengthening subject-matter expertise, and developing proprietary research that AI systems can cite. [yesoptimist.com](https://www.yesoptimist.com/case-study-aeo-chatgpt-conversions/?utm_source=chatgpt.com), [yesoptimist.com](https://www.yesoptimist.com/case-study-aeo-chatgpt-referral-revenue/?utm_source=chatgpt.com) **My assessment:** One of the strongest candidates if you care about qualified demand and revenue rather than simply being mentioned by AI. **Important caveat:** The case studies are agency-published, and Optimist explicitly acknowledges that AI adoption and other factors make it difficult to attribute results exclusively to its work. - Website: [Optimist](https://www.yesoptimist.com/) - Results: [Fintech AEO case study](https://www.yesoptimist.com/case-study-aeo-chatgpt-conversions/) | [B2B technology AEO case study](https://www.yesoptimist.com/case-study-aeo-chatgpt-referral-revenue/) ### 2. Intero Digital — strongest candidate for established brands and enterprise GEO **Best for:** Mid-market and enterprise companies that need GEO integrated with traditional SEO, content marketing, and digital PR. Intero Digital publishes several numerical results from its GEO engagements, including: - **Kitchen equipment brand:** 5,665% increase in AI search visibility and 189% year-over-year growth in AI-driven referrals. - **Industrial manufacturing company:** More than 1,200 Google AI Overview appearances, a 34% increase in first-page rankings, and a 24% increase in organic revenue. - **TRACOM Group:** 1,184% increase in generative search visibility, more than 39 placements in AI Overviews and zero-click results, and a 1,214% increase in engagement events from AI-referred traffic. [interodigital.com](https://www.interodigital.com/services/geo/?utm_source=chatgpt.com) Intero also identifies Freshpet as a GEO client, with a testimonial describing its work on AI visibility measurement and correcting misinformation in AI-generated responses. [interodigital.com](https://www.interodigital.com/services/geo/?utm_source=chatgpt.com) **My assessment:** A strong option for businesses that want an established digital marketing agency with GEO capabilities rather than a specialist focused exclusively on AI search. **Important caveat:** Some of the largest percentages represent growth from small baselines. Ask for absolute traffic, conversion, and revenue figures before comparing them with other agencies. - Website: [Intero Digital GEO services](https://www.interodigital.com/services/geo/) ### 3. AEO Labs — strong evidence of AI citation growth **Best for:** E-commerce, consumer brands, and companies that want to measure how often AI systems recommend or cite them. AEO Labs publishes client results including: - **OpenSea:** Citation share increased from 5% to 27% across tracked AI search prompts over seven months. - **Try Create:** Reported organic revenue growth from $2 million to $25 million. - **Rec Nation:** Approximately fivefold growth over the engagement, with visibility across more than 23 states within the first 60 days. - **Lux Unfiltered:** Reported being selected by Gemini as its top recommendation for a specific product-related query. [aeolabs.ai](https://www.aeolabs.ai/services/generative-engine-optimization?utm_source=chatgpt.com) **My assessment:** Worth investigating if your primary goal is to increase the likelihood that ChatGPT, Gemini, and other AI platforms recommend your brand during product discovery. The OpenSea example is particularly relevant because it measures citation share rather than relying exclusively on conventional search rankings. **Important caveat:** These are agency-reported results. Request the underlying tracking data, the exact prompts measured, and the definitions used for citation share and organic revenue. - Website: [AEO Labs GEO services and client results](https://www.aeolabs.ai/services/generative-engine-optimization) ### 4. Arc Intermedia — strong combination of AI traffic and engagement metrics **Best for:** Established businesses, particularly those investing in organic search and digital PR. Arc Intermedia publishes GEO results for a national retirement-community nonprofit, including: - A reported 726% increase in AI search traffic. - A reported 2,597% increase in ChatGPT traffic. It also documents its own AI visibility work, reporting a 1,128% increase in engagement and more than 60 pages receiving AI-driven traffic. [arcintermedia.com](https://www.arcintermedia.com/services/organic-and-earned-visibility/geo/?utm_source=chatgpt.com) **My assessment:** Worth considering if you want to build on an established SEO program and measure whether AI discovery brings visitors to your website. **Important caveat:** The published headline percentages don't, by themselves, establish the absolute volume of traffic or the resulting revenue. Ask for the starting figures and conversion data. - Website: [Arc Intermedia GEO services](https://www.arcintermedia.com/services/organic-and-earned-visibility/geo/) ### 5. AEO.co — strong focus on measured AI visibility **Best for:** Brands that need to monitor AI mentions, citation share, and visibility across different search platforms. AEO.co publishes case studies with platform-specific measurements. One example reports a fivefold lift over its ChatGPT baseline and 50% share of voice in Google AI Mode for a tracked cohort. Other reported measurements include 60% share of voice for a hormone-replacement-therapy query and 100% for a premium menopause query. [aeo.co](https://aeo.co/case-studies/?utm_source=chatgpt.com) **My assessment:** A promising candidate if the central problem is that competitors appear in AI answers while your brand doesn't. The emphasis on platform- and query-specific measurements is useful because an overall AI visibility score can hide substantial differences between platforms and buyer questions. **Important caveat:** Share of voice for a selected set of prompts is not the same as market share, total audience reach, or revenue. Confirm how the prompt set was selected and whether the measurements represent paying clients or the agency's own experiments. - Website: [AEO.co case studies](https://aeo.co/case-studies/) --- ### 6. Enleaf — GEO backed by established SEO and digital PR **Best for:** Small and midsize businesses that need SEO, content, authority building, and AI visibility working together. Enleaf reports more than 20 published case studies and has been operating since 2009. Its GEO program focuses on entity authority, structured content, original research, digital PR, and third-party brand mentions. [enleaf.com](https://enleaf.com/services/generative-engine-optimization/) Its published results include: - **Stay Alfred:** 412% growth in organic revenue. - **Kasa Living:** 1,173% improvement in keyword rankings. - **Fume Dog:** Organic revenue scaled to $503,000 per month. These are documented SEO and digital marketing outcomes, not necessarily results caused by GEO specifically. I would ask Enleaf for separate case studies measuring AI citations, AI referral traffic, and conversions from generative search. - Website: [Enleaf GEO services](https://enleaf.com/services/generative-engine-optimization/) ### 7. AY Rank — detailed GEO measurement and revenue attribution **Best for:** E-commerce and B2B companies looking for a specialist that measures both AI visibility and commercial results. AY Rank publishes four case studies and describes a measurement process combining live AI-platform polling, third-party citation tracking, and revenue attribution through Stripe and HubSpot. Its reported results include: - **Wearview:** Growth from $0 to $36,000 in monthly recurring revenue over eight months. - **Oloom:** 520% increase in AI visibility over five months. - **B2B SaaS company:** 73% increase in AI citations and 40% more demo requests from AI referrals. - **E-commerce brand:** 156% increase in AI-referred traffic, a conversion rate 2.3 times higher than organic traffic, and $840,000 in additional revenue attributed to AI search. [ayrank.com](https://www.ayrank.com/case-studies) **My assessment:** One of the more interesting options if you want a GEO specialist that explicitly describes how it measures and attributes outcomes. Its stated use of external citation tracking and CRM data is a positive sign. Nevertheless, these are agency-published claims, and the underlying client dashboards would need to be examined independently. - Website: [AY Rank case studies](https://www.ayrank.com/case-studies) --- ## 2. How I'd rank these agencies Here's my practical shortlist based on the types of results they publish, not an independent ranking of overall agency quality. | Agency | Strongest documented evidence | Best fit | |---|---|---| | **Optimist** | LLM referral conversions and revenue | B2B SaaS, fintech, technology | | **Intero Digital** | AI visibility, AI Overview placements, organic revenue | Enterprise and established brands | | **AEO Labs** | AI citation share and brand recommendations | E-commerce and consumer brands | | **Arc Intermedia** | AI search traffic and engagement | Established businesses | | **AEO.co** | Platform-specific AI share of voice | Brands focused on AI visibility | | **Enleaf** | Established SEO case studies and a GEO program | Small and midsize businesses | | **AY Rank** | AI citations, referrals, conversions, and reported revenue attribution | E-commerce and B2B SaaS | ### My top three, depending on your objective - **For measurable business outcomes:** Start with [Optimist](https://www.yesoptimist.com/) and [AY Rank](https://www.ayrank.com/case-studies/). - **For enterprise-level GEO:** Start with [Intero Digital](https://www.interodigital.com/services/geo/). - **For AI citation and recommendation visibility:** Start with [AEO Labs](https://www.aeolabs.ai/services/generative-engine-optimization). I would treat this as a shortlist for due diligence rather than a definitive ranking. All the results above are published by the agencies themselves; I haven't independently verified their client analytics or financial results. ## 3. How to tell whether an agency's results are credible AEO and GEO are still evolving, and some agencies publish impressive percentages without enough information to evaluate them. Before hiring one, ask for five things. **1. A named client or independently verifiable case study** A case study that identifies the client, explains the campaign, and presents results is more useful than an anonymous testimonial. Anonymous case studies can still be legitimate, but they're harder to verify. **2. Before-and-after AI visibility data** Ask for the actual prompts tracked across ChatGPT, Google AI Overviews, Gemini, and Perplexity, along with the frequency of brand mentions and citations before and after the campaign. **3. Business outcomes tied to AI referrals** Request data on: - Qualified leads and demo requests. - Conversions from AI-referred visitors. - Revenue attributed to AI search. - Conversion rates compared with other acquisition channels. **4. The measurement period and starting baseline** A 500% increase sounds impressive, but it means something different if the baseline was five visits a month versus 5,000. Request absolute figures and the duration of the campaign. **5. Evidence that the agency's work contributed to the outcome** AI adoption, traditional SEO improvements, PR, and changes in the way analytics tools attribute traffic can all affect results. A good agency should explain these limitations rather than claim that every improvement was caused by GEO. ## 4. The most important distinction: AI visibility versus revenue I would evaluate agencies using a simple progression: 1. **Visibility:** Is your brand mentioned in relevant AI-generated answers? 2. **Citation quality:** Are AI platforms citing credible pages that accurately represent your business? 3. **Traffic and demand:** Are those mentions generating qualified visits, inquiries, or demo requests? 4. **Business impact:** Can you connect the resulting leads and sales to a meaningful return on investment? An agency that improves your AI visibility but cannot demonstrate any commercial benefit may still be useful. However, if your objective is growth, I'd prioritize firms that can track the entire progression. --- ## Let me narrow this down for your situation **What kind of business are you looking to hire an AEO/GEO agency for?** For example, B2B SaaS, e-commerce, professional services, healthcare, or a local business. That matters because the best agency for generating B2B pipeline may be quite different from the best agency for getting consumer products recommended by ChatGPT. --- ANSWER 52 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? As of October 2026, several agencies publish documented client results for Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO), including measurable changes in AI citations, brand recommendations, AI-referred traffic, leads, and revenue. The important distinction is between an agency that publishes specific before-and-after results and one that merely promises to improve visibility in ChatGPT, Perplexity, Gemini, or Google AI Overviews. Here are the strongest candidates I found based on publicly available case studies, with emphasis on named clients, quantified outcomes, and measurement detail. Agencies with documented AEO/GEO results 1. AEO.co Strong AEO evidence Best for: DTC, e-commerce, and consumer brands. Outdoor Vitals: AI visibility rose from 0% to 34% in 11 days, with 22 of 60 monitored results citing the brand. Winona: Google AI Mode share of voice increased from 13% to 50%. BabyRx: Earned six GPT citations in three weeks. Its published results identify the measurement window and tracked outcomes. Website: aeo.co 2. Cited Agency Business outcomes reported Best for: B2B services, SaaS, and lead generation. 303 London: reports 47 qualified leads and $1.1 million in pipeline generated over 90 days. Alma: reports monthly demo requests increasing from 8 to 24, alongside a 520% increase in AI visibility. Gentz: reports AI recommendations across three of four tracked platforms. The case studies connect AI visibility with commercial metrics, although the figures are agency-reported. Website: citedagency.ai 3. GEO Close Transparent measurement method Best for: B2B companies, manufacturers, and niche e-commerce brands. Tangled Monk: direct AI recommendations doubled from 8 to 16, with share of voice rising from 7.9% to 18.8%. S. Nihar Exports: Gemini share of voice rose from 0% to 21.4%. THS IMPEX: share of voice increased from 4.1% to 14.3% in six weeks. A notable strength is its stated methodology: repeating a fixed set of buyer questions and retaining the raw AI answers. Website: geoclose.com/case-studies 4. Position Digital Best for: B2B, SaaS, recruitment, and established businesses wanting GEO integrated with SEO and digital PR. Its case-study portfolio reports: Decentriq: 21 media placements secured in four months and a separate case reporting a 221% increase in AI citations for a MarTech company. Don't Panic: an 809% increase in AI traffic. Oriel Partners: AI Overviews secured for 17 keywords. This is a broader SEO and digital PR offering with specific AI-search case studies, rather than a GEO-only specialist. Website: position.digital/case-studies/geo 5. MarGen Best for: B2B SaaS and regulated professional services. Its published case studies include: A UK workflow automation SaaS firm: AI citation share rose from 9% to 38% across 180 buyer queries over 14 months. A specialist commercial law firm: AI citation share rose from 4% to 41% across 75 priority queries over 12 months. A financial advisory practice: citation rate increased from 0% to 31% across 45 queries in 90 days. These examples are particularly useful for evaluating longer-term citation growth in complex, high-trust industries. Website: margen.net/case-studies Other agencies worth reviewing These agencies also publish AEO/GEO case studies, but I would scrutinize their evidence before putting them on a shortlist. Agency Published result What to check Netcloud India Reports 3.8× LLM citation growth and 68% AI-referred traffic growth in 90 days for an e-commerce client. Client identity and underlying analytics AEO Agency Publishes case studies across 10 countries and multiple industries. Quantified before-and-after metrics AY Rank Reports a smart-glasses brand reaching $36K monthly recurring revenue in eight months. How much revenue can be attributed to GEO specifically The GEO Agency Publishes initial GEO audit scores and case-study findings for named brands. Completed post-optimization results versus work still in progress How I'd choose between them My initial shortlist would be: For consumer brands and e-commerce: AEO.co. For pipeline, leads, and measurable commercial outcomes: Cited Agency. For transparent AI citation measurement: GEO Close. For a combined SEO, digital PR, and GEO strategy: Position Digital. For B2B and regulated industries: MarGen. These are recommendations based on the evidence published on their websites, not independent audits of their performance. What counts as convincing proof? Before hiring any AEO/GEO agency, ask for three things: A before-and-after report: The same set of non-branded buyer questions tested across ChatGPT, Gemini, Perplexity, and Google AI search. Evidence of business impact: AI-referred sessions, qualified leads, demo bookings, or revenue—not just a higher AI visibility score. Attribution and reproducibility: The measurement dates, sample size, raw answer records, analytics exports, and explanation of what other marketing changes occurred during the engagement. AI answers fluctuate, and an increase in citations does not automatically mean an increase in sales. Published case studies are useful evidence, but client references and verifiable underlying data are stronger. One question that would help narrow this down: Are you looking to hire an agency for your own business, or researching agencies as competitors or potential partners? I can tailor the shortlist to your industry and budget. --- ANSWER 53 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? If you mean **agencies specializing in Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) that publish measurable client outcomes**, the field is still young, so the strongest evidence tends to be agency-published case studies rather than independently audited reports. I’d separate them by how much documentation they provide (named clients, metrics, measurement methods, screenshots, etc.). [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) ## Agencies with publicly documented AEO/GEO client results | Agency | Documented results available | Notes | |---|---|---| | AEO Engine | Yes | Publishes multiple case studies with metrics such as AI citations, LLM traffic growth, revenue attribution, and organic growth. Examples include claims around Ask4SAM, OppoSuits, Gourmend Foods, Smartish, and others. [AEO Engine](https://aeoengine.ai/case-studies?utm_source=chatgpt.com) | | AEO.co | Yes | Publishes tracked visibility outcomes, including AI visibility scores, AI Mode share-of-voice, and GPT citation examples for brands such as Outdoor Vitals, Winona, and BabyRx. [AEO.co](https://aeo.co/?utm_source=chatgpt.com) | | AEO Labs | Yes | Stands out for describing verification methods (for example, prompt tracking, AI share links, Search Console, GA4 attribution) rather than only showing screenshots. [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) | | AEO Agency | Yes | Publishes international case studies across ecommerce, SaaS, local businesses, and other categories. [AEO Agency](https://aeoagency.org/our-case-studies/?utm_source=chatgpt.com) | | SEOLIONO | Yes | Publishes AEO/GEO case studies focused on AI visibility, LLM citations, and organic growth metrics. [Seoliono](https://seoliono.com/case-studies/?utm_source=chatgpt.com) | | GEO Agency | Yes, but mostly testimonial-style | Publishes claimed improvements in AI visibility, citations, and leads through client testimonials. The level of independent verification varies. [GEO Agency](https://www.geoagency.net/?utm_source=chatgpt.com) | ## What I’d look for before hiring one Because AEO/GEO metrics are not yet standardized, the quality of proof matters more than the size of the claimed numbers. Strong case studies usually include: - **Named client or permissioned disclosure** - **Specific prompts tracked** (e.g., “best CRM for X,” not just “AI visibility increased”) - **Which engines were measured** (ChatGPT, Gemini, Perplexity, Google AI Overviews, Claude) - **Before/after citation share** - **Revenue or lead attribution methodology** - **Measurement tools used** (GA4, Search Console, prompt tracking platforms, etc.) [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) ## Agencies with the strongest-looking public proof (based on documentation depth) 1. **AEO Engine** — broadest public case-study library with traffic, revenue, and citation metrics. [AEO Engine](https://aeoengine.ai/case-studies?utm_source=chatgpt.com) 2. **AEO Labs** — strongest emphasis on verification methodology and reproducibility. [AEO Labs](https://www.aeolabs.ai/blog/answer-engine-optimization-examples?utm_source=chatgpt.com) 3. **AEO.co** — unusually clear AI visibility measurement examples. [AEO.co](https://aeo.co/?utm_source=chatgpt.com) 4. **SEOLIONO** — good breadth of AEO/GEO + SEO case examples. [Seoliono](https://seoliono.com/case-studies/?utm_source=chatgpt.com) A caveat: many agencies in this space use “GEO” and “AEO” interchangeably, and the industry lacks a universal reporting standard. A company claiming “we increased AI visibility 300%” may be measuring something very different from another company making the same claim. [Stackmatix](https://www.stackmatix.com/blog/aeo-case-studies?utm_source=chatgpt.com) I can also provide a **ranked shortlist of AEO/GEO agencies by credibility, transparency, and enterprise suitability** if you’re evaluating vendors. --- ANSWER 54 of 54 (2026-10-12) --- Q: Which AEO and GEO agencies have documented client results? Several agencies now publish case studies with measurable Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) results. The most useful ones go beyond saying clients are “visible in ChatGPT” and report specific changes in AI citations, share of voice, referral traffic, leads, or revenue. My shortlist is AEO Labs, Intero Digital, AEO.co, Arc Intermedia, and Cited Agency. They offer different levels of evidence and different types of services, so I would evaluate them based on whether you want more AI citations, more qualified leads, or attributable revenue. Agencies with documented AEO/GEO results 1. AEO Labs Named client metrics A specialist in AI search visibility and citation optimization. OpenSea: AI citation share increased from 5% to 27% over seven months. Try Create: Reported organic revenue growth from $2 million to $25 million. Lux Unfiltered: Reported being selected by Gemini as its top dye-free tanning product recommendation. AEO Labs describes its prompt-tracking methodology and distinguishes AI visibility results from revenue outcomes. Best for: brands wanting measurable citation share, product recommendations, and commercial outcomes. Website and case studies 2. Intero Digital Multiple client case studies An established digital marketing agency with a dedicated GEO offering. Kitchen equipment brand: Reported a 5,665% increase in AI search visibility and 189% year-over-year growth in AI-driven referrals. Global industrial manufacturer: Reported going from zero Google AI Overview appearances to more than 1,200 year over year, alongside a 24% increase in organic revenue. TRACOM Group: Reported a 1,214% increase in engagement events from AI-referred traffic. These figures appear on its GEO service page, with links to the individual case studies. Some client identities are generalized, so ask for the underlying measurement reports. Best for: larger businesses seeking GEO integrated with technical SEO, content strategy, and digital PR. Website and GEO results 3. AEO.co Tracked before-and-after metrics A specialist focused specifically on helping brands become recommendations in AI answers. Outdoor Vitals: AI visibility score rose from 0% to 34% in 11 days, with 22 of 60 monitored results citing the brand. Winona: Google AI Mode share of voice rose from 13% to 50%. BabyRx: Earned six GPT citations in three weeks. The agency says the results are used with permission and identifies the measurement windows and platforms. These are primarily visibility metrics, not proof of incremental sales. Best for: founder-led and direct-to-consumer brands seeking hands-on AEO implementation. Website and client results 4. Arc Intermedia AI traffic case studies An organic visibility agency with a dedicated GEO service and published traffic outcomes. National retirement-community nonprofit: Reported a 726% increase in AI search traffic and a 2,597% increase in ChatGPT traffic. Arc Intermedia's own site: Reported a 1,128% increase in engagement and more than 60 pages receiving AI-driven traffic. The retirement-community example is a client case study; the second is a self-reported demonstration. The public service page does not identify the nonprofit by name. Best for: organizations prioritizing organic content, AI referral traffic, and established SEO capabilities. Website and GEO case studies 5. Cited Agency Lead and pipeline metrics An AEO-focused agency that publishes client examples tied to business development. 303 London: Reported 47 qualified leads and $1.1 million in pipeline generated in 90 days. Alma: Reported monthly demo requests increasing from 8 to 24, alongside a 520% increase in AI visibility. Gentz: Reported being recommended across three of four AI platforms for regional queries. These are agency-published case-study figures; the public summaries do not independently establish how much of the pipeline was caused by AEO. Best for: B2B and service businesses that care about qualified leads, demos, and pipeline rather than citations alone. Website and case studies How I would rank them Agency Strongest published evidence Main limitation AEO Labs Named brands, citation-share changes, revenue claims Revenue attribution needs validation Intero Digital Multiple GEO case studies, AI referral and revenue metrics Some clients are anonymized AEO.co Specific engines, tracked cohorts, before-and-after visibility Mostly early visibility indicators Arc Intermedia AI referral traffic and engagement growth One prominent example is anonymized Cited Agency Qualified leads, pipeline, demos and AI visibility Public summaries don't prove causation These are my research-based candidates, not an independently audited performance ranking. Their results are published by the agencies themselves, and I have not independently verified their client analytics. What counts as convincing proof? Before hiring any AEO/GEO agency, I'd ask for: Baseline and follow-up data: The same set of prompts measured before and after the engagement. Platform-level results: Separate data for ChatGPT, Google AI Overviews or AI Mode, Gemini, and Perplexity, where relevant. Business impact: AI-referred sessions, qualified leads, conversions, and revenue—not just an AI visibility score. Attribution methodology: How the agency distinguishes its impact from normal SEO growth, PR, paid marketing, and changes in AI platforms. A named reference: Ideally, a client you can speak with about results and the duration of the engagement. One important distinction: a 500% increase in AI visibility is not necessarily a 500% increase in sales. Citation share, referral traffic, and revenue measure different things. My recommendation: Start with AEO Labs if you want a specialist with named-brand examples, Intero Digital if you need an established full-service partner, or Cited Agency if pipeline generation is your primary goal. Request a sample report from each before making a decision.