There's also Stash (now renamed to BitBucket Server (edit: fixed name, as pointed out in the reply)). It does not include some of the features (such as issue tracking), and I think rightly so. I haven't used GitLab for maybe 2 years now, so I can't compare the two.
Umm no, you are incorrect. Bitbucket does have its own issue tracker like GitHub.. (but it is not turned on by default) and what I am referring to is NOT JIRA Software.