I work with two gyms in Northern VA....
"
Pro-Fitness & Martial Arts"
21580 Atlantic Blvd
Suite 125
Sterling, VA
http://www.pfmacenter.com/index.php
"
Team Lloyd Irvin"
3801 Wilson Blvd
3rd floor
Arlington, VA
http://novamma.com/
They are both great facilities. I will be holding a MuayThai "Smoker" (Interclub) event on June 16th at the Pro-Fitness Gym...