Highly recommended to visit listed companies’ investor relations (IR) sites. They are easy to find if you google them e.g. Slack Investor, Slack Investors, Slack Investor Relations
Slack’s page is: https://investor.slackhq.com/home/default.aspx
Click on Financials (SEC Filings), then check 10-Q (quarterly earnings) or 10-K (annual) because typically a press release or a presentation does not get reviewed by anyone external. Also take a look around, maybe there’s a transcipt here, a video there, a presentation from some Wall St Bank Event hidden somewhere.
Slack had 100,000 paid customers as of 31 July…
Paid Customers
…
As of July 31, 2019 and 2018, we had approximately 100,000 and 73,000 Paid Customers, respectively.Paid Customers >$100,000
…
As of July 31, 2019 and 2018, we had 720 and 412 Paid Customers >$100,000, respectively.
(Source - Slack’s latest 10-Q/quarterly results)
Meanwhile, Microsoft Teams had 13 million DAUs at the end of its fiscal year - i.e. recently - vs Slack’s 10 million as of January 2019
From Microsoft’s latest FY19 annual results (latest earnings) - earnings call transcript:
Microsoft posted this transcript from the JPMorgan conference in May 2019 (link].
(MSFT Investor relations: https://www.microsoft.com/en-us/Investor/sec-filings.aspx)
It’s full Teams ahead. I think someone mentioned the CEO said it was the fastest growing product.