How about Atlassian?
They have Bitbucket and I think is pretty safe to say that they don't care about people hosting their open source stuff.
Of course you can use Bitbucket for free but where the big bucks are for Atlassian is the enterprise market. I don't have market data but I don't think there are many big corps using GitHub as opposite to Bitbucket together with other Atlassian products.
In my experience of working with big corps, if you are using Jira and Confluence, Bitbucket simply offers much better integration with them and lately Atlassian is rocking it with new features and deeper integration every time.