Assembla has a long history in the business with its Subversion hosting. It includes a „Workspaces“ platform with issue management, time tracking, and collaboration tools like wikis and its own messaging system.
Being a very lean and reliable service, Beanstalk is a great choice for businesses. It offers its own „deployment“ infrastructure and integrates well with other tools like Zendesk, FogBugz, Basecamp, or Lighthouse.
Coming from Atlassian, one of the giants in the industry. Therefore, integrations to other Atlassian products like the JIRA issue tracker are seamless.
Services go well beyond just code hosting: it calls itself a „platform for developers“, offering development tools (e.g. Trac or Bugzilla) as well as integrations with JIRA, Basecamp, and others.
One of the few platforms that supports Git, Subversion, and Mercurial. Additionally, ticketing, project management and deployment infrastructure tools are included.
The makers of the popular issue tracking solution "FogBugz" offer a solid code hosting platform - and of course a tight integration with their bug tracking system.
The undisputed number one in the Open Source world with projects like Ruby on Rails or jQuery being hosted at GitHub. Offerings include great code review and collaboration features.
With an OpenSource background, GitLab offers a fast-evolving platform for code collaboration. The free community edition and the enterprise edition can be installed on your own servers; a hosted offering that runs on GitLab.com is also available.
Not limited to Microsoft technologies, "Visual Studio Team Services" offers an open platform for any development stack. In addition to code hosting, the platform includes its own Continuous Integration service and agile planning tools for Scrum and Kanban teams.
Berlin startup Plan.io offers much more than just hosting: a complete project management platform, including modules for task & file management, wiki, forums, helpdesk, and time tracking.
Perforce is one of the heavyweights in the business with a long history and extensive experience. Its "Helix" platform offers a complete software collaboration system with issue tracking, code review, and even advanced things like Threat Detection.
Sophisticated code review & approval system, including newsfeed and mentioning system. With features like LDAP support and IP restriction, Rhodecode seems tailored for corporate use.