Rezdy - Tour operators in 73 countries use Rezdy's booking software to sell thousands of products in real-time on their website and through distribution channels.
Roundcube - Web-based IMAP email client
TravelBooster - Travel Booster - Travel Agent and TMC, Airline vacation companies, and Tour operator software with a complete suite of front, mid & back office tools.
Mailpile - Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Eventric - Eventric is an professional tour management solution.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.