Homebridge, IFTTT, Home Assistant, Google Home, SmartThings, Mi Home, Control4, Domoticz, IP-Symcon, domogik, Switchur, Control-Freak, Conrad Connect, LIFX-Control-Panel, HomeGenie, AWS IoT, Loxone Smart Home, Yeti Smart Home, Stringify, Nim Home Assistant (NimHA), ioBroker, emteria.OS, Nest Mobile, ImperiHome, Mozilla WebThings Gateway, FHEM, LinuxMCE, Gladys Assistant, Jeedom, Scrypted, SEQUEmatic, Gideon Smart Home, DomotiGa, EVA ICS, Freedomotic, HUEston, SURE Universal, iRidium Pro, MisterHouse, Homegear, AirPatrol WiFi, Netbeast are some alternatives to OpenHAB.