Which agencies help brands earn citations from AI assistants?
AI Citations and Content Strategy: What The Shortlist Report Finds
10 firms lead, appearing in 16.7–27.4% of 84 AI responses. The sample cannot separate them, so we do not pretend it can.
No clear leader
No single firm dominates this question. Ten come up regularly and they specialise in different things, so the firm worth calling is the one that fits your situation rather than whoever sits highest.
Siege Media23 of 84
Combines content marketing, digital PR, SEO, and authority building for content-led and SaaS brands.
Landis Communications22 of 84
Blends digital PR, media relations, and AI search visibility strategies using earned media and authoritative mentions.
AMP Public Relations20 of 84
PR-led agency combining earned media, thought leadership, citations, and GEO/AEO to improve brand appearance in AI answers.
POLARIS20 of 84
Offers GEO audits, entity optimization, technical GEO, digital PR, and LLM visibility tracking for larger organizations.
iPullRank19 of 84
Technical SEO and GEO agency for complex enterprise sites and B2B SaaS with AI search readiness capabilities.
+5 more, tiedin the table
Based on 84 ChatGPT responses to this question, collected September 4, 2026–September 21, 2026. Firms are counted once per response. How we measure.
The ranking
| Firm | Responses | Share | |
|---|---|---|---|
| Tier 1 10 firms, 16.7–27.4% | |||
| Siege MediaCombines content marketing, digital PR, SEO, and authority building for content-led and SaaS brands. | 23 of 84 | 27.4% | |
| Landis CommunicationsBlends digital PR, media relations, and AI search visibility strategies using earned media and authoritative mentions. | 22 of 84 | 26.2% | |
| AMP Public Relationsamppublicrelations.comPR-led agency combining earned media, thought leadership, citations, and GEO/AEO to improve brand appearance in AI answers. | 20 of 84 | 23.8% | |
| POLARISpolarisagency.comOffers GEO audits, entity optimization, technical GEO, digital PR, and LLM visibility tracking for larger organizations. | 20 of 84 | 23.8% | |
| iPullRankipullrank.comTechnical SEO and GEO agency for complex enterprise sites and B2B SaaS with AI search readiness capabilities. | 19 of 84 | 22.6% | |
| Go Fish Digitalgofishdigital.comTechnical SEO and digital PR agency providing GEO and reputation-focused search work. | 18 of 84 | 21.4% | |
| Volume PRvolumepr.comCombines digital PR, SEO, and GEO to optimize brands for AI answer visibility and citations. | 16 of 84 | 19.0% | |
| Percepturepercepture.comCombines GEO with enterprise SEO, digital PR, structured data, and entity/knowledge-graph work to earn AI citations. | 15 of 84 | 17.9% | |
| Intero Digitalinterodigital.comOffers GEO combined with SEO, content, authority building, and digital PR for large businesses and enterprise organizations. | 14 of 84 | 16.7% | |
| Search AgencyTracks named prompts and citations across AI assistants with monthly reporting on citation share, mentions, and sentiment. | 14 of 84 | 16.7% | |
Key findings
- No firm answers “Which agencies help brands earn citations from AI assistants?” reliably in ChatGPT. The most-named, Siege Media, appeared in 23 of 84 responses (27.4%) collected September 4, 2026–September 21, 2026, and 9 other firms scored close enough that the sample cannot put any of them in order.
- Siege Media, Landis Communications and AMP Public Relations were named most often, in 20–23 of 84 responses. All 10 firms in the leading group are listed with their counts in the table below.
- 10 firms cleared the reporting threshold on “Which agencies help brands earn citations from AI assistants?” in ChatGPT as of September 21, 2026; the full table with response counts is below.
- Siege Media appears in 5 of the 9 AEO, GEO and AI visibility agencies reports published by The Shortlist Report, the widest coverage of any firm named on this page.
- No firm paid to appear in this ranking; placement cannot be bought, and the counts come from ChatGPT responses rather than from submissions.
Why the tiers fall where they do
Tier 1 holds Siege Media, Landis Communications, AMP Public Relations, POLARIS, iPullRank, Go Fish Digital, Volume PR, Percepture, Intero Digital and Search Agency, named in 14 to 23 of the 84 ChatGPT responses. They are grouped rather than ranked because the gaps between them are inside the margin of error at this sample size — one extra mention would reorder them, so an order would be reporting noise as a finding.
The test is McNemar’s at 95%, applied against the same 84 responses for every firm. The full reasoning, and what happened when we ranked one-to-N instead.
What the sample shows
10 firms lead this question: Siege Media, Landis Communications, AMP Public Relations, POLARIS, iPullRank, Go Fish Digital, Volume PR, Percepture, Intero Digital and Search Agency. They appear in 16.7–27.4% of the 84 responses. The gaps between them are inside the margin of error at this sample size, so they are listed together rather than ranked against each other.
112 firms were named at least once across the sample. 10 of them cleared the threshold of 2 responses and appear above; the rest were named once and are inside the noise.
How to read this
Firms are grouped into tiers, not ranked one to fifteen. A tier holds every firm whose 95% confidence interval overlaps the leader's, which is a long way of saying the sample cannot tell them apart. Order within a tier is arbitrary — read the counts, not the position.
Share is the percentage of responses that named the firm — not a quality score. A firm scoring low here may be excellent and simply under-written about online, which is a finding about its visibility rather than its work.
The same question was asked repeatedly because AI assistants do not answer identically twice. A single response would tell you almost nothing.
What this measurement does not tell you
- It is not a quality ranking. Share reflects how much has been written about a firm online, which is what an AI assistant reads. A capable firm nobody writes about scores low here.
- It is a reading from a date range, not a permanent standing. This sample was collected September 4, 2026–September 21, 2026; models change and so do their answers.
- It covers ChatGPT only. Other assistants answer differently, and we do not extrapolate across engines we have not measured.
- Order within a tier is arbitrary. Read the counts, not the position. Why we use tiers.
Cite this report
The Shortlist Report. (2026). AI Citations and Content Strategy: What The Shortlist Report Finds. The Shortlist Report. https://www.shortlistreport.com/article/ai-citation-content-agencies
Underlying counts: CSV · JSON. Every answer they were counted from: plain text · JSON. All reusable under CC BY 4.0 with attribution.