Dennis Crowley is the co-founder and Executive Chairman of Foursquare, the technology platform that powers location experiences for more than 1B people around the world.

Previously, Dennis founded Dodgeball, one of the first location-based mobile social services (acquired by Google in 2005) and helped build early location-based games PacManhattan and ConQuest.

He's been named one of Fortune's "40 Under 40," a member of Vanity Fair's "New Establishment," and has won the "Fast Money" bonus round on the TV show Family Feud.