rezdy.comSoftware by Rezdy
FareHarbor - Reservation software for activity and tourism businesses. Low credit card processing rates, mobile friendly. Built for you.
SOGo - SOGo is groupware server with a focus on scalability and open standards.
Travefy - The easiest online and mobile group travel planner!
Baïkal - Cal and CardDAV server
Checkfront - Checkfront is built for Tour & Activity Operators, Rental companies and Accommodation providers. Manage your inventories online, centralize reservations, process payments and get unified access to leading distribution channels.
Xandikos - Lightweight CalDAV/CardDAV server on top of Git.