You should probably assume that with any large corporation you are privy to about 0.01% of what goes on there.
(Of course, that doesn't mean that the remaining 99.99% is evil. Actually, your assumptions about what's going on with stuff that you don't know about says a lot about yourself as a person.)
They'll give the government whatever they like, just like all the other mentioned companies. Collecting more data is pretty much their business goal, so they're pretty well aligned already. I doubt they do anything special exclusively to help the NSA though, if the data's useful they'd be collecting it for themselves anyway.