Baïkal - Cal and CardDAV server
ManageEngine RecoveryManager Plus - RecoveryManager Plus is one such enterprise backup solution which has the ability to easily backup and restores both the domain controllers and virtual machines.
Radicale - The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
SECDO - SECDO offers automated endpoint security and incident response solutions
SOGo - SOGo is groupware server with a focus on scalability and open standards.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.