CentreStack is an Enterprise File Sync, Share, and Collaboration solution. The Service Provider Edition of CentreStack allows the creation of unlimited number of tenants.
The Service Provider Edition allows the MSPs to host their own 100% On-Premise Enterprise File Sync, Share, and Collaboration platform. Each tenant can integrate their own Active Directory infrastructure and attach their own file servers.
The video below shows the basics of tenant creation.
For more details, please visit http://www.centrestack.com