ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
FileRun - Beautiful, fast and reliable selfhosted file sharing and sync.
DSpace - DSpace open source software enables open sharing of content that spans organizations, continents...
PHPfileNavigator - PHPfileNavigator: Administrador de ficheros y directorios via web.
Radicale - The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
HRCloud2 - A full-featured home-hosted Cloud Drive & Personal Assistant.