[BerislavLopac]

You'd be surprised. Case in point is my current main client, a huge national broadcasting company which is using Jira and Confluence for everything on one hand, but is just setting up a GitHub private instance on the other.

[lorenzobr]

I'm indeed surprised and I'm sure there are other cases like this out there, it would be interesting to know the thinking behind it.

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.

[BerislavLopac]

You are absolutely right from the technical perspective, but I guess these decisions are based on buzzword matching rather than any sound technical design.