Stewart Butterfield is the co-founder and CEO of Slack, an enterprise software platform that allows teams and businesses of all sizes to communicate effectively. Today Slack is used by more than five million people every day, and its customers include Autodesk, IBM, Capital One, Conde Nast, eBay and EA.
Prior to Slack, Stewart co-founded and lead Flickr—an image and video hosting website—from 2003 through its 2005 acquisition by Yahoo!. By 2008, it was heralded as one of the largest web services in the world, with more than 50 million users and billions of photos.
