Top 200 YouTube advertisers
Ranked by total estimated ad spend across every YouTube video ad in the AdSee index. Updated .
The largest YouTube advertiser in the AdSee index is ChatGPT, with an estimated $206M – $516M in total ad spend across 203 indexed video ads, followed by BTG Pactual ($141M – $353M) and Adobe ($83.3M – $208M). Figures are all-time totals across the index, not monthly budgets.
Spend figures are estimated ranges, not reported numbers — see how we estimate ad spend.
Frequently asked questions
By AdSee's estimates, ChatGPT is the largest YouTube advertiser in our index, with an estimated $206M – $516M in total ad spend across 203 indexed video ads and 10.3B total views. Next are BTG Pactual ($141M – $353M estimated), then Adobe ($83.3M – $208M estimated). The full ranking of the top 200 advertisers is on this page.
Total. Each figure is the estimated spend across every ad AdSee has indexed for that advertiser — not a monthly or annual budget. Advertisers with a longer run of indexed ads will naturally rank higher than ones that launched recently.
We multiply each ad's public view count by a country-level CPV (cost-per-view) benchmark range for the countries the ad ran in, which is why every figure is a range rather than a single number. Advertisers do not disclose per-video budgets, so these are estimates, not reported spend. The full method and its limitations are documented at /methodology/ad-spend-estimates.
The ranking is recomputed monthly from the full AdSee index, most recently in August 2026. AdSee adds roughly 150K new YouTube ads per day, so both the spend estimates and the ordering shift between updates.
Yes. AdSee indexes 5M+ unlisted video ads — creatives served through paid placements that never appear on an advertiser's public channel or in YouTube search. They count toward the spend estimates and ad counts here, which is why some advertisers rank far higher than their public channel would suggest.
Yes. Every ad counted here is searchable in AdSee by what is spoken in it, what appears on screen, the brand, and the on-screen text — with full transcripts, AI visual descriptions, landing pages, and country-level placement data.