Email, calendar, collaboration server with Web interface and lots of integrations. (Source Code).

Collaborative Platform for team collaboration: file,threads,notes,agenda,etc.

Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier. (Source Code).

SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface. (Demo, Source Code).

Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming. (Source Code).

Enterprise CRM and groupware tool. Share projects, calendars, files and e-mail online with co-workers and clients. (Source Code).

Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS. (Source Code).

Create multimedia collaborative walls for in-person or remote work (documentation in French). (Source Code).

Create collaborative surveys, quizzes, brainstorms, and word clouds (documentation in French). (Demo, Source Code).

An online self-hosted application for creating collaborative digital notepads (Documentation in french). (Source Code).

Personal cloud where you can manage and sync your files, notes, contacts, passwords, and documents. (Source Code, Clients).

Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more. (Source Code).