There are a ton in Charlotte that do the testing. They are also very inexpensive. ( I paid $175.00) Here is a link to the gifted schools website. The list is in the application packet. I have heard good things about Dr Gotlieb

http://www.scholarsacademy.org/apps/pages/index.jsp?uREC_ID=197643&type=d&pREC_ID=423855