| Business | Phone |
| World Classic Martial Arts 7979 Muncaster Mill Rd, Gaithersburg 20877 | (301) 258-9797 |
| World Tae Kwon Do Academy 8035 Snouffer School Rd # F, Gaithersburg 20879 | (301) 208-1919 |
| Anglin's Martial Arts Academy Gaithersburg 20877 | (301) 527-1020 |
| Tompkins Karate Assn 15918 Luanne Dr, Gaithersburg 20877 | (301) 840-9262 |
| Us Wushu Academy 701 Russell Ave, Gaithersburg 20877 | (301) 869-7519 |
| C S Kim Karate 18761 N Frederick Ave # Cc, Gaithersburg 20879 | (301) 515-8800 |
| Champion Karate 263 Muddy Branch Rd, Gaithersburg 20878 | (301) 948-3932 |
| Comtemporary Fighting Arts Gaithersburg 20877 | (301) 279-2244 |
| Evolve Academy Of Martial Arts 18777 N Frederick Ave # B-C, Gaithersburg 20879 | (301) 990-1563 |
| Mudo Usa 830 Muddy Branch Rd, Gaithersburg 20878 | (301) 977-8668 |
| Germantown Martial Arts Acad Germantown Commons, Gaithersburg 20877 | (301) 515-5206 |
| Kicks Karate 12059 Darnestown Rd, Gaithersburg 20877 | (301) 947-4700 |
| Kicks Karate 3 Russell Ave # 3, Gaithersburg 20877 | (301) 869-1400 |