Beware of all 3 of these companies. They seem to be run by the same outfit.
I recently did a internet People Search on Intellus and shortly thereafter another company called ValueMax charged my debit card for $19.95 for a membership that I never signed up for. They also charged another bank account for a membership to PrivacyMatters. When I called to complain, it was the same person who answered both phone inquiries.
Privacy Matters offers free credit reports, then continues charging even if you cancel.
And a year later they charged again. They also try to sell you an identity theft protection package, which is REALLY ironic since that seems to be the business they are in--identity theft.