Michael Birch is an angel investor and the founder of Bebo, a social networking platform he sold to AOL for $850 million. See sector focus and contact routes.
Michael Birch is an angel investor and the founder of Bebo, a social networking platform he sold to AOL for $850 million in 2008, after which he launched PROfounders Capital and serves as a board member at Onalytica. He invests globally at the seed and Series A stages, focusing on entrepreneurs in digital and social sectors, with notable investments including Pinterest, Calm, and Mixpanel. While his typical check size and lead/follow behavior are not publicly specified, he has made 79 angel investments using personal capital for equity. His portfolio features high-profile exits such as Pinterest and Calm, reflecting a focus on scalable consumer technology companies. Birch is also the founder of The Battery, a private members club and venture firm in San Francisco, where he engages with entrepreneurs and investors. He has not published distinctive public writing or a widely cited investment thesis, but his career emphasizes backing founder-led digital ventures early.
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