VersionEye Enterprise (VEE) supports different Enterprise Git Servers, such as GitHub Enterprise and Atlassian Stash. GitLab support is coming soon. VEE can be configure that way that users can login with their existing GitHub Enterprise or Stash account. That has the advantage that the users can see their repositories directly in VEE. Most of the VEE clients are using it that way.
But some companies are not using Git yet. For this use case VersionEye Enterprise supports single sign on via LDAP and AD. In the settings area of the admin user the connection to LDAP can be configured.