While these companies operate legally, they do not offer a good value for your money. To find more information simply Google their name and add the word scam after it.
John Casablancas Modeling and Career Centers
John Robert Powers
A note on model searches. They can be a good value if you already meet agency standards AND you can attend without going through any modeling courses. Representatives from major agencies will be there but your chances are no better than going to open call. The advantage of a model search is you will be able to see many agents at one time. For the vast majority of people who attend these model search, it is not a good value. That's because the vast majority of people in general are not qualified for agency representation. Do your research and tread carefully. You can find more information here.
Model Search America
Model Management Inc.