Show HN: Foundertrace – chain of YC startups founded by its employees https://ift.tt/gsTfp4V

Show HN: Foundertrace – chain of YC startups founded by its employees Inspired by PG’s tweet about a chain of 4 YC startups where the founder worked at a YC startup, I vibe coded and generated these genealogy chains for all ~6k YC startups. And to make these trees easily accessible I packaged them into a hosted webapp. Few noteworthy YC startups which have had huge impact in YC ecosystem Airbnb - 83 YC startups spawned Stripe - 67 YC startups spawned Dropbox - 50 YC startups spawned Justin.tv/Twitch - 47 YC startups spawned More recently founded YC startups which have spawned a lot more YC startups Rappi - 21 YC startups spawned Brex - 20 YC startups spawned Scale AI - 19 YC startups spawned https://ift.tt/abDpH5F January 4, 2026 at 02:06AM