Which Amazon agencies measure profit rather than just sales?
Amazon Profitability and Reporting: What The Shortlist Report Finds
10 firms lead, appearing in 9.3–18.5% of 54 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.
SellerVine10 of 54
Manages Amazon advertising, creative, marketplace operations and strategy for brands.
Spenzio10 of 54
Manages Amazon PPC, DSP, and account management focused on contribution margin optimization.
IZC Media9 of 54
Manages Amazon PPC and advertising with focus on TACoS, profit-centered bidding and keyword targeting.
Nexa9 of 54
Manages Amazon operations including PPC, revenue, TACoS, contribution margin, fees, logistics and inventory.
GrowithAmazon8 of 54
Offers onboarding, PPC, SEO, listing optimization, creative and catalog management for Amazon sellers.
+5 more, tiedin the table
Based on 54 ChatGPT responses to this question, collected October 2, 2026–October 13, 2026. Firms are counted once per response. How we measure.
The ranking
| Firm | Responses | Share | |
|---|---|---|---|
| Tier 1 10 firms, 9.3–18.5% | |||
| SellerVinesellervine.comManages Amazon advertising, creative, marketplace operations and strategy for brands. | 10 of 54 | 18.5% | |
| Spenziospenzio.comManages Amazon PPC, DSP, and account management focused on contribution margin optimization. | 10 of 54 | 18.5% | |
| IZC Mediaizcmediagroup.comManages Amazon PPC and advertising with focus on TACoS, profit-centered bidding and keyword targeting. | 9 of 54 | 16.7% | |
| NexaManages Amazon operations including PPC, revenue, TACoS, contribution margin, fees, logistics and inventory. | 9 of 54 | 16.7% | |
| GrowithAmazongrowithamazon.comOffers onboarding, PPC, SEO, listing optimization, creative and catalog management for Amazon sellers. | 8 of 54 | 14.8% | |
| The Amazon Whisperertheamazonwhisperer.comProvides full-service Amazon management including operations, inventory, PPC advertising, and reporting for CPG and food & beverage brands. | 8 of 54 | 14.8% | |
| Tinuititinuiti.comWorks with large brands on Amazon Ads, DSP, AMC, and omnichannel media across the full funnel with significant Amazon-side expertise. | 8 of 54 | 14.8% | |
| AIXOptimizes Amazon PPC using contribution margin and SKU-level profitability analysis. | 7 of 54 | 13.0% | |
| AMZ Advisersamzadvisers.comProvides Amazon marketplace management, SEO, listing optimization, PPC and international operations for established brands. | 6 of 54 | 11.1% | |
| Adbrewadbrew.ioManages Amazon PPC advertising and international expansion for home and kitchen brands with large product catalogs. | 5 of 54 | 9.3% | |
Key findings
- No firm answers “Which Amazon agencies measure profit rather than just sales?” reliably in ChatGPT. The most-named, SellerVine, appeared in 10 of 54 responses (18.5%) collected October 2, 2026–October 13, 2026, and 9 other firms scored close enough that the sample cannot put any of them in order.
- SellerVine, Spenzio and IZC Media were named most often, in 9–10 of 54 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 Amazon agencies measure profit rather than just sales?” in ChatGPT as of October 13, 2026; the full table with response counts is below.
- Tinuiti appears in 9 of the 15 Amazon 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 SellerVine, Spenzio, IZC Media, Nexa, GrowithAmazon, The Amazon Whisperer, Tinuiti, AIX, AMZ Advisers and Adbrew, named in 5 to 10 of the 54 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 54 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: SellerVine, Spenzio, IZC Media, Nexa, GrowithAmazon, The Amazon Whisperer, Tinuiti, AIX, AMZ Advisers and Adbrew. They appear in 9.3–18.5% of the 54 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.
97 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 October 2, 2026–October 13, 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). Amazon Profitability and Reporting: What The Shortlist Report Finds. The Shortlist Report. https://www.shortlistreport.com/article/amazon-agency-profit-reporting
Underlying counts: CSV · JSON. Every answer they were counted from: plain text · JSON. All reusable under CC BY 4.0 with attribution.