At Index, he will invest and work with new and current entrepreneurs to help them scale and grow their businesses from his office in San Francisco, CA.
— dick costolo (@dickc) January 19, 2016
Costolo, who was born on September 10, 1963, in Royal Oak, Michigan, is now CEO and co-founder of a startup trying to disrupt the personal fitness sector.
Prior to Twitter, he co-founded three startups:
– Burning Door Networked Media, a web design and development consulting company (sold to Digital Knowledge Assets in 1996);
– SpyOnIt, a web page monitoring service (sold to 724 Solutions in 2000), and
– FeedBurner, a web feed management platform (sold to Google in 2007).
He currently sits on the boards of Patreon and IfOnly and lives in Marin county with his family.