Posted on

Slack Raises Outlook After Winning New Corporate Customers

Slack Technologies Inc. raised its full-year outlook and said it added more large corporate users for its workplace-collaboration software in the last quarter.

Slack, which is engaged in heated competition for customers with Microsoft Corp., said a number of big companies have embraced its messaging platform. Many of those, the San Francisco company said, already use its rivals’ software for other purposes. Microsoft’s competing messaging product, called Teams, is free to its Office 365 subscribers.