Mr. Richard Costolo is a Co-Founder & serves as Co-Managing Partner at 01 Advisors. is an Angel Investor. Richard Costolo was a Co-Founder & served as the Chief Executive Officer at Chorus Fitness. He serves as Board Member at IfOnly. He served as Advisor at Keyo Apartment. He serves as a Mentor at Index Ventures. He is also a Co-Founder and Chief Executive of a startup that is reimagining the path to personal fitness. He was most recently Chief Executive of Twitter from 2010 to 2015. He serves as Board Member at Patreon. Prior to joining Twitter, Dick co-founded and ran three startups, including FeedBurner, which sold to Google in 2007. The former improv comedian has been a consultant on HBO's "Silicon Valley" and currently sits on the boards of IfOnly. He holds a B.S. in Computer Science from the University of Michigan, Ann Arbor as well as an honorary Doctor of Laws degree.