https://code.google.com/p/apsw/
Google Code did one thing very well - each project could have one wiki and issue tracker, but any number of source code repos. This is fantastic for projects where there are multiple parts - eg an Android client, an iOS client, multiple server parts etc. Github for example only lets you have one source repository per project, and as a result the wikis and issues are useless since they are almost always filed against the wrong sub-project.
Every startup I have been involved in over the last many years used Google for business (users, groups, office stuff etc), but then for code hosting we were forced to go elsewhere, needing yet another set of user accounts, groups, admin, billing etc. There was a ticket begging to let folks pay for google code, but it never came to pass. All the startups would have gladly paid, especially to avoid dealing with multiple accounts, sites and admin. Some features like the issue tracker were quite good. Heck you could even prioritise issues - something github still didn't have the last time I looked.