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.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
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.
ioBroker - flexible and modular application for the IoT and Smarthome
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation