Slack 2015 Founder of the Year Winners

Slack's founding team of Stewart Butterfield, Eric Costello, Cal Henderson and Serguei Mourachov wins the 2015 Crunchies Award for Founder of the Year (other nominees: Stripe's John and Patrick Collison; Elizabeth Holmes of Theranos; WhatsApp's Brian Acton and Jan Koum; Mikkel Svane, Alexander Aghassipour and Morten Primdahl of Zendesk).