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FirstPromoter among Y Combinator companies

FirstPromoter was detected on 18 of 5,386 crawled Y Combinator company websites, a share of 0.3%.

5,386 of 6,133 Y Combinator domains returned a usable record and form the denominator. 5,242 were counted from a rendered homepage crawl on 4 September 2026, 144 from a plain fetch only, and 747 returned no usable record. Company list: Y Combinator company directory. <5 means fewer than 5 crawled domains in that group. Rank 2 of the 5 Affiliate and Referral tools published for this group.

Software used by Y Combinator companies · Affiliate and Referral across all groups · FirstPromoter across every group and the wider sample

FirstPromoter runs on these Y Combinator companies

• Magic
• Mailmodo
• haddock
• Writesonic
• Bonsai
• Clueso
• Hypotenuse AI
• Dart
• Draftbit
• Reacher
• Coinrule
• AnswerThis
• VideoGen
• Carousel Technologies
• DGI Apparel
• YouArt
• Couple
• Firebender

18 of 18, ordered by team size, largest first.

<a href="https://installmap.com/groups/yc/firstpromoter"><img src="https://installmap.com/badges/yc/firstpromoter.svg" alt="FirstPromoter runs on 18 of 5,386 crawled YC companies (0.3%)"></a>

[![FirstPromoter runs on 18 of 5,386 crawled YC companies (0.3%)](https://installmap.com/badges/yc/firstpromoter.svg)](https://installmap.com/groups/yc/firstpromoter)

Other Affiliate and Referral tools in this group

• Rewardful 0.8%
• Tolt 0.2%
• Awin 0.1%
• PromoteKit 0.1%
• PartnerStack 0.1%