Top ChatGPT advertisers: the 50 biggest, ranked
Mastercard leads the top ChatGPT advertisers at 3,490 placements, with the top 50 brands holding 44% of all ads as of August 2026.
As of August 2026, Mastercard is the top ChatGPT advertiser with 3,490 placements, a 3.04% share of every tracked ad appearance. The top 50 advertisers span B2B SaaS, fintech, and security brands like Monday.com, Cloudflare, ZoomInfo, and Salesforce, drawn from a population of 5,486 advertisers actively buying placements on the platform.
The top 50 advertisers hold 44% of all ChatGPT ad placements, despite making up less than 1% of the 5,486 advertisers actively buying ads on the platform.
The top 50 ChatGPT advertisers, ranked
| Rank | Advertiser | Placements | Share |
|---|---|---|---|
| 1 | Mastercard | 3490 | 3.04% |
| 2 | Monday.com | 3017 | 2.63% |
| 3 | Cloudflare | 2633 | 2.29% |
| 4 | ZoomInfo Technologies Inc | 2622 | 2.28% |
| 5 | BestMoney | 2286 | 1.99% |
| 6 | Capterra | 1932 | 1.68% |
| 7 | Salesforce | 1822 | 1.59% |
| 8 | HiBob | 1630 | 1.42% |
| 9 | Aikido Security | 1560 | 1.36% |
| 10 | AirOps | 1410 | 1.23% |
| 11 | Crowdstrike | 1272 | 1.11% |
| 12 | SAP | 1262 | 1.10% |
| 13 | Angi | 1228 | 1.07% |
| 14 | Carta | 1096 | 0.95% |
| 15 | Planhat | 1077 | 0.94% |
| 16 | RingCentral | 1065 | 0.93% |
| 17 | Robinhood | 1014 | 0.88% |
| 18 | Sago | 945 | 0.82% |
| 19 | Attio | 906 | 0.79% |
| 20 | Prismatic | 898 | 0.78% |
| 21 | Unknown | 811 | 0.71% |
| 22 | Fidelity Investments | 809 | 0.70% |
| 23 | Outset | 808 | 0.70% |
| 24 | Answering Service Care, LLC | 784 | 0.68% |
| 25 | Coframe, Inc. | 765 | 0.67% |
| 26 | OneTrust | 735 | 0.64% |
| 27 | Datadog | 692 | 0.60% |
| 28 | Drata Inc. | 690 | 0.60% |
| 29 | Optimizely | 670 | 0.58% |
| 30 | Pebl | 657 | 0.57% |
| 31 | HoneyBook Inc | 623 | 0.54% |
| 32 | SurveySparrow | 614 | 0.53% |
| 33 | Workday | 589 | 0.51% |
| 34 | ADP | 574 | 0.50% |
| 35 | Intuit Quickbooks | 524 | 0.46% |
| 36 | Call Tracking Metrics LLC | 520 | 0.45% |
| 37 | Evertune Inc. | 518 | 0.45% |
| 38 | Checkr, Inc. | 498 | 0.43% |
| 39 | wolfSSL Inc. | 492 | 0.43% |
| 40 | Rocket Mortgage | 491 | 0.43% |
| 41 | UiPath Inc | 485 | 0.42% |
| 42 | SuperGRC, Corp | 483 | 0.42% |
| 43 | Oxylabs | 475 | 0.41% |
| 44 | Cast AI | 474 | 0.41% |
| 45 | LegalZoom | 462 | 0.40% |
| 46 | Intuit Enterprise Suite | 460 | 0.40% |
| 47 | On-Site Storage Solutions | 459 | 0.40% |
| 48 | One Cloud Media | 445 | 0.39% |
| 49 | Toptal | 441 | 0.38% |
| 50 | Teleport | 440 | 0.38% |
What the top of the leaderboard reveals
The top of the ChatGPT advertiser list is dominated by B2B SaaS, fintech, and security brands. Mastercard, Monday.com, Cloudflare, ZoomInfo Technologies Inc, and Salesforce hold the first tier, with security vendors like Aikido Security and Crowdstrike, HR platforms like HiBob and ADP, and fintech players like Robinhood and Fidelity Investments just behind. The leaderboard is overwhelmingly vendor-led, not consumer-led: ChatGPT ads are bought by teams with considered, high-ACV sales cycles, not impulse-buy retail brands.
Below the top 20, placements fall off quickly. Position 50, Teleport, holds 440 placements, roughly an eighth of Mastercard's count, and positions 40 through 50 cluster tightly between 440 and 491. Even within the top 50, distribution is steeply skewed: the top 5 advertisers alone account for 12.2% of all ChatGPT placements, while every brand from position 21 downward holds under 1%. The 5,436 advertisers outside the top 50 collectively hold the remaining 56% of volume, a long tail with plenty of room for the next tier of buyers to climb.
Where these advertisers cluster by niche
- Enterprise & Fintech20%
- SaaS & Productivity19%
- Email Marketing & CRM12%
- Real Estate11%
- Cloud & DevOps11%
- Others27%
Enterprise & Fintech is the single largest ChatGPT ad niche with 2,802 ads, ahead of SaaS & Productivity at 2,610 and Email Marketing & CRM at 1,636. The top 8 niches account for the bulk of ChatGPT ad volume across the 615 active categories we track. Travel & Hospitality (209) and Automotive & Mobility (230) sit far down the list, evidence that consumer-leaning verticals have not yet found a clear prompt fit on ChatGPT. The pattern mirrors the advertiser list: when ChatGPT queries lean toward work and money, the brands buying visibility are the ones selling tools to workers and money managers.
The top 50 is a placement leaderboard, not a spend leaderboard. Brands that show up more often across more prompts may simply have more creatives or broader campaign coverage. CPG and retail brands are nearly absent, not because they are uninterested, but because ChatGPT queries are still mostly work- and money-oriented. For the full picture across every niche, see our library, the advertiser directory, and the intelligence hub.
Less than 1% of ChatGPT advertisers hold nearly half of all ad placements. The long tail is real, but the head is sharp.
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We probe ChatGPT with realistic consumer prompts and capture the sponsored ad cards it returns — every creative, the triggering prompt, and the advertiser. Figures reflect our captured sample, not OpenAI's internal data. Explore the live ad library and market intelligence.