OPERA Property Management System - OPERA Cloud Services is an enterprise platform for hotel operations and distribution.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Cloudbeds - Cloudbeds is the platform that powers hospitality, enabling tens of thousands of lodging businesses in more than 150 countries worldwide to grow and thrive.
ioBroker - flexible and modular application for the IoT and Smarthome
RDPWin - Property Management Software for clients who have outgrown their current system.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation