Hmm, looks like that's changed. Back in 2012, they were reported as "profitable nearly the entire way" in their history. https://gigaom.com/2012/07/09/github-finally-raises-funding-...

and more recently there've been articles on their revenues hitting 100m. https://www.cnbc.com/2017/10/11/github-has-a-110-million-run...

but it sounds like their costs have outgrown their earnings.

I stand corrected.