Sisense - The BI & Dashboard Software to handle multiple, large data sets.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Looker - Looker makes it easy for analysts to create and curate custom data experiences—so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.
ioBroker - flexible and modular application for the IoT and Smarthome
Exago - Embedded BI for SaaS
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation