Yes, the NSA has boasted of having a surveillance "partnership" with U.S. companies, but those would be telecommunications carriers -- AT&T, Verizon, etc., not Silicon Valley firms: http://www.cnet.com/news/surveillance-partnership-between-ns...

Also look at the sworn affidavit that EFF obtained from local SF bay area whistleblower Mark Klein -- an AT&T technician who revealed the existence of the NSA's fiber taps at the 2nd & Folsom Street SF facility.

There is no such entity as "major American industry." There are different companies with different incentives and different willingnesses to protect their users. Some companies do the right thing; others don't.