Here is a breakdown of the 20 companies conducting autonomous driving testing in CA. Notable absent of course is Uber with their temper tantrum in CA but also Toyota which I was surprised to not see registered in CA. It's clear the center of gravity for testing autonomous cars is CA. This is a big data game where Tesla is clearly out front.
Automotive Manufactures:
Tesla Motors, Volkswagen, Mercedes Benz, Nissan, GM, BMW Honda, Ford, Faraday & Future Inc., Wheego Electric Cars
Automotive Suppliers:
Bosch, Delphi Automotive, Valeo North America, Inc. NVIDIA, Telenav, Inc.
Web Giants:
Google, Baidu USA LLC
Silicon Valley Startups:
Zoox, Inc.
Drive.ai, Inc.
NextEV USA, Inc.
Testing of Autonomous Vehicles