Slack says in 2018-05 May it has 8 million daily active users. And 3 million paying users....”Slack in September said it had around 6 million daily active users, 50,000 teams and 2 million paid users, and around $200 million in annual recurring revenue.” Its last funding round valued it at $5.1B as well. #growth #unicorns #charts #numbers #slack #revenue #startups #pub