Coinbase - Bitcoin, safe and easy.
My Devices - Drag and drop IoT project builder for Raspberry Pi
Binance - Cryptocurrencies exchange platform
ioBroker - flexible and modular application for the IoT and Smarthome
Poloniex - US-based cryptocurrency exchange with maximum security
Nim Home Assistant (NimHA) - Nim Home Assistant is an open-source home automation platform running on Nim.