Back in October 2014 it included at least some teams at MS, Apple, and big news organizations like NY Times, Wall Street Journal, etc. While it may not be 100%

Back in October 2014 it included at least some teams at MS, Apple, and big news organizations like NY Times, Wall Street Journal, etc. While it may not be 100% deployed, I'd bet that a lot of F500 companies have at least a few divisions that are all over it. http://www.businessinsider.com/slack-flaw-lets-you-see-other-companies-rooms-2014-10?op=1&IR=T http://www.businessinsider.com/slack-flaw-lets-you-see-other...