Baïkal - Cal and CardDAV server
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
SOGo - SOGo is groupware server with a focus on scalability and open standards.
SECDO - SECDO offers automated endpoint security and incident response solutions
Xandikos - Lightweight CalDAV/CardDAV server on top of Git.
Heroku Enterprise - Heroku Enterprise is a flexible IT management for developers that lets them build apps using their preferred languages and tools like Ruby, Java, Python and Node.