Group-Office is a PHP based dual license commercial/open source groupware and CRM and DMS product developed by the Dutch company Intermesh.

GroupOffice Professional is a commercial product and offers additional business modules like project management, finance, HR and time tracking.

The online suite puts independent office applications onto a central server, making them accessible through a web browser.

[3] The suite includes file management, address book, calendar, email, notes, finance and project modules.

[6] In the Professional version, it is possible to create templates to export to Open Document Format or Microsoft Word.