Google is the biggest investor in AI by billions.
Google - $3.9 billion
Amazon - $871 million
Apple - $786 million
Intel - $776 million
Microsoft - $690 million
Uber - $680 million
Twitter - $629 million
AOL - $191.7 million
Facebook - $60 million
Salesforce - $32.8 million
Biggest disclosed investments in AI startups.
Nest Labs - $3.2 billion
Kiva Systems - $775 million
Otto - $680 million
Deep Mind - $500 million
TellApart - $479 million
Movidius - $400 million
Nervana - $350 million
SwiftKey - $250 million