Stewart Butterfield

Stewart Butterfield is the CEO of Slack, the business communication platform that he co-founded in 2013. Butterfield has been an entrepreneur, designer, and technology leader for over 20 years, including several years as a software and internet product design consultant. In 2003, he co-founded Flickr, an image-sharing and social web service that he built up as the company’s CEO, then served as senior director of product management when it sold to Yahoo!. Butterfield has been named one of TIME’s 100 Most Influential People, one of BusinessWeek’s Top 50 Leaders, and The Wall Street Journal Technology Innovator of the Year; he has also been included on Vanity Fair’s New Establishment List, the Recode 100, and Advertising Age’s Creativity 50.