

In enterprise organizations (meaning those with >250 PCs or > $1MM in annual revenue), no use is permitted beyond the open source, academic research, and classroom learning environment scenarios described above.” ( source)

For all other usage scenarios: In non-enterprise organizations, up to 5 users can use Visual Studio Community.An unlimited number of users within an organization can use Visual Studio Community for the following scenarios: in a classroom learning environment, for academic research, or for contributing to open source projects.“Any individual developer can use Visual Studio Community to create their own free or paid apps.Internally it is Visual Studio Professional 2013 with Update 4 (that normally costs $499) excluding SharePoint, Office, LightSwitch and Cloud Business Applications from the installer, but now is free for non-enterprise organizations. Yesterday Microsoft released a new Visual Studio 2013 edition – Visual Studio Community 2013:
