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The Y Combinator Mafia

10,657 people came through Y Combinator and went on to found or lead other companies.

Justin JiangYC Winter 2025Founded Sherpa Labs

Frequently asked questions

What is the Y Combinator mafia?
The Y Combinator mafia is the network of 10,657 people who came through Y Combinator and went on to found or lead other companies, including Sherpa Labs.