Adam D'Angelo

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Adam D'Angelo
D'Angelo in 2011
Born (1984-08-21) August 21, 1984 (age 39)
EducationPhillips Exeter Academy California Institute of Technology (B.S.)
OccupationCEO of Quora
Known forFormer CTO of Facebook

Adam D'Angelo (born August 21, 1984) is an American internet entrepreneur. He is best known as the co-founder and CEO of Quora, based in Mountain View, California. He was chief technology officer of Facebook, and also served as its vice president of engineering, until 2008.[1][2] In June 2009, he started Quora.[3] He invested $20 million of his own money into Quora as part of their Series B round of financing.[4] He is a member of the board of directors of OpenAI.[5]


Adam D'Angelo attended Phillips Exeter Academy for high school. There, he developed the Synapse Media Player (a music suggestion software) along with Mark Zuckerberg and others.[6]

In 2002, he attended California Institute of Technology, where he graduated with a B.S. in Computer Science.

In 2004, while attending college, D'Angelo also created the website BuddyZoo, which allowed users to upload their AIM buddy list and compare them with those of other users. The service also generated graphs based on the buddy lists.[6][7]


In 2001, he was placed eighth at the USA Computing Olympiad as a high school student and he won a silver medal at the 2002 International Olympiad in Informatics.[8]

ACM International Collegiate Programming Contest (ICPC): California Institute of Technology Beavers (team of 3), World Finalists 2003, 2004; North American Champions 2003; World Finals Silver Medals 2004; World Finals co-coach 2005.[9][10]

In 2005, he was one of the top 24 finalists in the Algorithm Coding Competition of the Topcoder Collegiate Challenge.

Other work[edit]

D'Angelo was an advisor to and investor in Instagram before its acquisition by Facebook in 2012.[11]

In 2018, he joined the board of directors of OpenAI.[5]


Fortune magazine included D'Angelo as runner-up in its "Smartest people in tech" article in 2010.[12]


  1. ^ Eldon, Eric (May 11, 2008). "Facebook CTO Adam D'Angelo to leave the company". VentureBeat. Retrieved August 12, 2011.
  2. ^ Feeney, Kevin J. (February 24, 2005). "Business, Casual". The Harvard Crimson. Retrieved August 12, 2011.
  3. ^ Rivlin, Gary (April 28, 2011). "Does Quora Really Have All the Answers?". Wired. Retrieved August 12, 2011.
  4. ^ "Quora Raises $50M At $400M From Peter Thiel, D'Angelo Puts In $20M Of His Own Money". TechCrunch. May 14, 2012.
  5. ^ a b "Adam D'Angelo on Twitter"., "Sam Altman on Twitter"., "Ilya Sutskever on Twitter".
  6. ^ a b David Kirkpatrick (2010). The Facebook Effect. pp. 26–27.
  7. ^ "BuddyZoo". Archived from the original on October 28, 2003. Retrieved October 28, 2003.
  8. ^ "Exeter Olympians". Exeter Bulletin. Retrieved August 12, 2011.
  9. ^ "Standings for The 2003 ACM Programming Contest World Finals". Retrieved June 20, 2014.
  10. ^ "Standings for The 2004 ACM Programming Contest World Finals". Retrieved June 20, 2014.
  11. ^ Sengupta, Somini; Perlroth, Nicole; Wortham, Jenna (April 14, 2012). "Instagram Founders Were Helped by Bay Area Connections - The New York Times". The New York Times.
  12. ^ Hempel, Jessi; Kowitt, Beth; Mangalindan, JP (July 9, 2010). "The smartest people in tech - Engineer runners-up: Cheever and D'Angelo (22)". Fortune Magazine. CNN. Archived from the original on September 12, 2010. Retrieved October 10, 2010.

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