Adam D'Angelo

Adam D'Angelo (born August 14, 1984) is an American internet entrepreneur. He is best known for his role as the co-founder and CEO of Quora, based in Mountain View, California.

Early life and education
Adam D'Angelo was born on August 14, 1984 in Redding, Connecticut, United States. He attended Phillips Exeter Academy for high school. There, he developed the Synapse Media Player (a music suggestion software) along with Mark Zuckerberg and others.

From 2002 to 2006, he attended California Institute of Technology, where he graduated with a B.S. in Computer Science.

Career
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.

D'Angelo joined Facebook shortly after its launch in 2004, and served as its chief technology officer (CTO) from 2006 to 2008, and also served as its vice president of engineering, until 2008.

In June 2009, he started Quora. In May 2012, he invested $20 million of his own money into Quora as part of their Series B round of financing. Apart from Quora, his notable investments include Instagram before its acquisition by Facebook for $1 billion, Asana, a work management platform co-founded by Facebook co-founder, Dustin Moskovitz, and Lunchclub, a networking platform using artificial intelligence.

D'Angelo is also the founder of an AI startup, Poe.

Other work
D'Angelo was an advisor to and investor in Instagram before its acquisition by Facebook in 2012.

In 2018, he joined the board of directors of OpenAI. In 2023, D'Angelo voted to remove Sam Altman from his role as CEO of OpenAI. When Sam Altman returned to OpenAI, the other three board members involved in Altman's ouster resigned. D'Angelo retained his position making him the only one of the six board members on the eve of the ouster still in office.

Honors and achievements
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.

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.

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

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