Conrad Connect - Service for managing smart home devices
Beebotte - Beebotte is a cloud platform providing key building blocks to accelerate the development of the...
FHEM - FHEM (TM) is a GPL'd perl server for house automation.
The IoT Guru - the IoT cloud backend company
Homebridge.io - Homebridge is a lightweight NodeJS server you can run on your network that emulates the iOS HomeKit...
ThingSpeak - Open source data platform for the Internet of Things. ThingSpeak Features