Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Jitterbit - Jitterbit is an open source integration software that helps businesses connect applications, data and systems.
ioBroker - flexible and modular application for the IoT and Smarthome
Improvado.io - Improvado is an ETL platform that extracts data from 300+ pre-built connectors, transforms it, and seamlessly loads the results to wherever you need them. No more Tedious Manual Work, Errors or Discrepancies. Contact us for a demo.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.