Coinbase - Bitcoin, safe and easy.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Binance - Cryptocurrencies exchange platform
ioBroker - flexible and modular application for the IoT and Smarthome
Poloniex - US-based cryptocurrency exchange with maximum security
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation