Google Home and Assistant now work with more than 1500 smart home devices from 200+ brands
Home automation and smart speakers (generally not just Google's) are accelerating at a rapid pace as numerous IoT and smart device manufacturers are getting on board. Combine this with services such as IFTTT and the connected smart home is basically here. It is expected that the smart speaker and home device control market will grow strongly through 2018. The bits I have managed to do myself involved so programming code at all and no soldering iron - it's got that easy!
The list of supported smart home partners on Google Assistant and Home continues to grow and that growth even seems to be accelerating as time passes. Just last October, 65 direct partners were being supported by Assistant and now if you go over to the Home Control section of your Google Home app or Assistant's settings, you can find that the number has jumped a little over 100.
With all of these additions, Google has also updated the page to say that Assistant and Home now work with over 1500 products (previously 1000) from over 200 brands (prev. 150).