Computerworld - https://www.computerworld.com/article/3268411/collaboration/slacks-enterprise-grid-gets-security-and-compliance-enhancements.html#tk.rss_all
Slack has unveiled a raft of new security and compliance features aimed at boosting the appeal of its Enterprise Grid product among IT leaders and admins.
While Slack has tended to be adopted on a team-by-team basis, Enterprise Grid offers centralized management of the team chat application on a company-wide basis and supports up to 500,000 users.
A year after its launch, Enterprise Grid has been deployed by 150 businesses globally. The largest deployment is IBM, which has more than 110,000 daily active users. There are several other Enterprise Grid customers with between 50,000 and 100,000 daily users.