gettyimages-633208766-5895366653db1494133f51aa8d531dc958ec86e9

gettyimages-633208766-5895366653db1494133f51aa8d531dc958ec86e9

Stewart Butterfield, co-founder and chief executive officer of Slack Technologies Inc., walks off the stage at the conclusion of an event in San Francisco, California, U.S., on Tuesday, Jan. 31, 2017. Slack Technologies Inc. launched Slack Enterprise Grid, a new product designed to help its software scale to organizations with tens of thousands of employees. Photographer: David Paul Morris/Bloomberg via Getty Images