Slack just raised a whopping $427 million to become a $7.1 billion company. Now it has to defeat Microsoft.
Foto: Craig Barritt/Getty Images Slack CEO Stewart Butterfield Slack, the popular work chat app, has raised $427 million in venture capital at a valuation of more than $7 billion, according to a news release. All told, Slack has raised about $1.27 billion in venture capital – including in a $250 million mega-round led by SoftBank …