Best course evaluation to use?

I'm hoping to move to North Carolina in a few years and have written to the NC BON to find out what service I should use. They've given this list as their approved services:

Center for Applied Research, Evaluation and Education, Inc.
Credentials Evaluation Service (CGFNS)
Educational Credential Evaluators, Inc.
Education Evaluators International, Inc.
Educational Perspectives, nfp
Educational Records Evaluation Service, Inc.
Educational International
Evaluation Services, Inc.
Foundation for International Services, Inc.
International Consultants of Delaware, Inc.
International Education Research Foundation (IERF)

I know CGFNS is what is usually recommended generally on allnurses.com, but it does seem about double the price of the rest - anyone have experience with these that they would like to share?

Thanks.