Show HN: Foundertrace – chain of YC startups founded by its employees
loondri Saturday, January 03, 2026
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
Summary
FounderTrace is an AI-powered platform that helps founders and investors discover and connect with each other. The platform leverages machine learning to analyze vast amounts of data and surface relevant matches, enabling more efficient networking and investment opportunities.
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Summary
foundertrace.com