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Adam D'Angelo Investment Portfolio

Adam D'Angelo is an American entrepreneur and angel investor who co-founded Quora in 2009 and serves as its CEO, and previously served as chief technology officer at Facebook. He has made multiple investments in private technology startups as an angel investor.

Companies Invested In

Company Name
Sector
Investment Round Value
Funding Round
Announcement Date
PC:PROTEProtege
Enterprise Software, AI & Data Platforms
$10.00M
Seed Round
Aug 14, 2025