A Google spokesperson told Motherboard in a statement at the time of the unionization that it had “no objection to these Cognizant workers electing to form a union,” but that it would not bargain with them. “We are not a joint employer as we simply do not control their employment terms or working conditions—this matter is between the workers and their employer, Cognizant,” the spokesperson said.
NLRB seems to disagree. This will be an interesting case, I suspect ...