


Instead, he insisted that his first backers be cut in on the new opportunity. Most would have left their early investors for dead, this person says: it’s the way of things with tech start-ups, where failures are quickly passed over in the race to make the next fortune. Slack CEO and co-founder Stewart Butterfield is leaving Salesforce in January. Slack was carved out of a failed gaming company, in one of the start-up world’s more famous “pivots.” One investor recounts how the Canadian entrepreneur refused to ditch his first backers when switching horses to the new product.

In the often dog-eat-dog world of Silicon Valley, Butterfield has gained something of a reputation for being less cut-throat than many. If he feels bitter about selling out too cheaply (Facebook later paid $1 billion for Instagram) he has always done a good job of hiding it, retreating behind slightly doleful eyes and a very deliberate, whisper-like delivery. Over the last 20 years, Stewart has built a distinguished career as a designer, entrepreneur. Butterfield stuck it out for three years before leaving to try his hand at founding a new company. Stewart Butterfield is the co-founder and CEO of Slack. In July 2021, cloud software giant Salesforce acquired Slack for 27.7 billion in cash and stock. Only a year into its existence, Flickr sold out for less than $25 million to Yahoo. Stewart Butterfield is the cofounder and CEO of team-based messaging software Slack.
