In that case https://githost.io/ might be interesting for you.
private managed instance of gitlab.
6 karma · joined June 25, 2015
The 45 day trial is for the case when you want to host gitlab-ee yourself on your own server.
The correct and active account is @gitlabstatus
can you elaborate a bit more what you are looking for? What kind of structure do you need?
Without these informations, I'll just throw gitlab in the possible alternatives pool.
https://about.gitlab.com/features/
Please note that I'm biased since I'm on the gitlab core team. :)