There are five quotes explaining it that way right in the wikipedia article. The only company quoted that doesn't admit to complying with court orders is Dropbo

There are five quotes explaining it that way right in the wikipedia article. The only company quoted that doesn't admit to complying with court orders is Dropbox; they flatly deny involvement in anything such as PRISM. I'm not saying there is proof of lack of wrongdoing, but it would be great if people would stop claiming without evidence that these companies made deals with NSA. Evidence-based decision making is better than paranoia.