Sonos One - A self-contained, Alexa-connected speaker from Sonos
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
BOSEbuild Speaker Cube - Build-it-yourself Bluetooth speaker for curious kids
ioBroker - flexible and modular application for the IoT and Smarthome
Sonos In-Wall Speaker - A speaker made by Sonos and Sonance that sits in your wall
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation