Booqable - All-in-one rental software for small and medium-sized businesses.

Baïkal - Cal and CardDAV server

ToolHound - ToolHounds asset tracking system gives the assurance that the tools and equipment are being efficiently tracked and managed.

Radicale - The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.

HireHop - Powerful equipment rental and asset management software with unique and easy to use features, at an affordable price with free upgrades and free support, with no setup fees.

SOGo - SOGo is groupware server with a focus on scalability and open standards.