Slack plans to launch an enterprise-focused version of its collaboration platform early next year.
The Vancouver-born company says services for the enterprise edition wil include unified security and better group management.
The fastest-growing startup ever, Slack had originally hoped to launch the enterprise version this year, having first announced its eventual launch in 2014.
Valued at $3 billion, Slack has more than 1.25 million active users and $35 million in annual recurring revenue.