ClientBase - Travel Agency
Baïkal - Cal and CardDAV server
Trams Back Office - Trams and ClientBase Products and Services
Radicale - The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
Softrip - Wasatch SoftRIP is the software of choice for RIP and print management solutions for large format printing, dye sublimation, screen separations and other specialized printing markets.
DAViCal - DAViCal is a server for calendar sharing.