LinkedIn, Google, and Meta ad counts for all 5,908 Y Combinator companies, from the 2007 batch through Winter 2026.
Plus a sample of the ads themselves: 46,944 creatives across three tabs, with titles, formats, links, and run dates. Create a free Adyntel account to unlock it all, along with 50 credits to run the same lookup on any company you want.
Free Adyntel account, 50 credits, no credit card. Used by Clay, HockeyStack, and 1,000+ teams.
5,908
YC companies
1.52M
ads counted
46,944
sample ad creatives
Apr 2026
data snapshot
| Company | Domain | Batch | Industry | Meta | 6-mo change | ||
|---|---|---|---|---|---|---|---|
| Lattice | lattice.com | W16 | Human Resources | 200,424 | 1,000 | 0 | +74,228 |
| Faire | faire.com | W17 | Retail | 66 | 20,000 | 764 | +142 |
| Segment | segment.com | S11 | Analytics | 18,691 | 600 | 10 | +566 |
| Deel | deel.com | W19 | Finance | 6,873 | 10,000 | 1,183 | -1,701 |
| Rippling | rippling.com | W17 | Human Resources | 7,405 | 3,000 | 1,173 | +3,179 |
A Google Sheet with four tabs. Tab one is the full company list. The other three hold a sample of the actual ads, broken out by platform.
Every company from every batch, 2007 through Winter 2026, in a single sortable tab.
Domain, LinkedIn, Crunchbase, Facebook, and X profile URLs for each company.
LinkedIn, Google, and Meta ad counts side by side, plus a total and top platform.
Volume change since September 2025 so you can spot who is scaling and who pulled back.
Filter by YC batch, industry, location, and business type (B2B, Consumer, Fintech, and more).
Three extra tabs with actual ads: 27,845 Google, 15,503 LinkedIn, and 3,596 Meta, with titles, formats, links, and dates.
A label per company: Dormant, Single-Channel, Moderate, or Diversified, based on platform mix.
Headquarters location for each company.
Active, acquired, public, or inactive, for every company in the directory.
The sheet is built to segment. Here is where the advertisers sit.
Only 34% of YC companies run ads.
2,013 are advertising right now. The rest are dark. Most startups stay off paid far longer than the growth-at-all-costs story suggests, which makes the ones who do advertise the list worth having.
Google and LinkedIn lead. Meta is a distant third.
Of 1.52 million ads tracked, 866K are on Google and 605K on LinkedIn. Meta has 53K. B2B startups lead on LinkedIn, consumer startups lean Google and Meta.
Momentum is expanding.
Since September 2025, 1,196 companies grew ad volume while 601 pulled back, close to two to one toward more ads.
Filter the list to YC companies running ads, then open outreach with a specific note on their ad activity and platform mix.
Score the list by ad activity and route only the companies showing growth signals to sales.
Track how a whole cohort advertises, by platform, batch, and industry, without browsing ad libraries by hand.
Use ad volume and six-month change as an outside-in read on which portfolio or pipeline companies are scaling.