This talk aims to share the benefits and challenges of running an Open Source Community and at the same time having companies selling services around the software. It will cover how the XWiki Open Source Community is managed in a full Open Source way, open to any participants regardless of their interests, and how the employees of private companies including XWiki SAS manage their roles as members of the community. We will also touch on XWiki SAS' approach to support the Open Source project. Finally, we will discuss how the company, as well as developers and users, benefit from a fully Open Source approach.