entity Updated 2026-07-23 Tags: Person, Startups, Y-Combinator

Pete Koomen

Pete Koomen is Dan Siroker’s co-founder in Dan Siroker on Optimizely, Rewind, and Limitless AI. Dan says he convinced Pete to leave Google after the 2008 Barack Obama campaign, and the two worked through Carrot Sticks and Spreadly before building Optimizely.

Pete’s role in the source is mainly team-contextual. The episode uses the Dan/Pete path to show how Y Combinator helped founders focus after weak early ideas and how an idea grounded in the founders’ own pain can create stronger Founder Product Fit.

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