The Dieringer Research Group, Inc.

These people have repeatedly called my home phone number. I have a call blocking service which blocks their calls. They have apparently figured this out and immediately call again from the phone number of the blocking service. This tells me that they are under handed and not a company that I want to deal with. Their repeated calling borders on harassment! Frankly, I can't imagine how they received an A+ rating from the Revdex.com. The only purpose this has served is to make me question the validity of Revdex.com ratings!