I always recommend starting on Hoagies' Page, since the testers there have been recommended by parents of gifted kids. Testers cannot self-recommend.

http://www.hoagiesgifted.org/psychologists.htm#susa

Note that this skips some very useful info about testing that is at the top of the page. I'd suggest that you read that, too.

If you (or anyone) find other testers who are good with gifted kids but who are not on this list, please contact Carolyn K. at Hoagies and add them. It helps us all if this list is as complete as possible. Thanks!

Kriston