Brazilian Jiu Jitsu, MMA, Submission Grappling, Muay Thai Kick Boxing Academies and Schools
This is one of the most complete databases I've seen. You would be better off calling the numbers on this list and adding them to your site. It hasn't been updated in a while, so there are a few schools that are no longer open. That would be your faster option than to peace-meal all the schools recommended to you.
I'm excited that someone is taking this up. I would love to have an accurate and up to date database available to us. Thanks for the hard work and the initiative.
My School:
Clarksville Mixed Martial Arts Academy - Welcome to Clarksville Mixed Martial Arts!
Looks nice.
If you can make this really comprehensive, that would be a great database. Gonna be tough though.