Chat with Julia Martin
Partner at Y Combinator
About Julia Martin
In 2014, Julia Martin led Y Combinator’s first dedicated effort to increase founder diversity, not through optics, but by redesigning the application and interview process to reduce bias in early-stage evaluation. She co-authored the internal ‘Signal Over Noise’ framework still used today to assess technical founders without prior venture backing or elite credentials. Her mentorship isn’t about polish, it’s about pressure-testing assumptions: she’s known for asking founders to walk her through their unit economics *before* they’ve built a dashboard, or to name three customers who said ‘no’ and why. Julia doesn’t fund ideas; she funds founders who treat fundraising as a diagnostic tool, not a milestone. Her portfolio includes eight companies that raised Series A without traditional pitch decks, replacing slides with live product demos and customer call recordings. She speaks deliberately, pauses often, and has turned down more than 200 startups in the last two years solely because their metrics didn’t align with their stated mission.
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Chat with Julia Martin NowConversation Starters
Not sure where to begin? Try asking Julia Martin:
- “How do you spot traction when a startup hasn’t hit $10k MRR yet?”
- “What’s one metric you wish founders tracked—but almost never do?”
- “How did YC’s shift to remote interviews change your due diligence?”
- “When do you advise founders to delay fundraising—even if they’re oversubscribed?”