| Business | Phone |
| Advance Martial Arts 5541 Nicholson Ln # D, Rockville 20852 | (301) 881-8669 |
| Yamasaki Jiu-Jitsu 12051 Nebel St, Rockville 20852 | (301) 770-0969 |
| Yong Sung Lee Hapkido Studio 5050 Nicholson Ln # A, Rockville 20852 | (301) 231-0880 |
| Traditional Karate Do Rockville 20850 | (301) 217-0022 |
| Spirit Mountain Martial Art 617 Hungerford Dr, Rockville 20850 | (301) 424-6575 |
| Eagle Martial Arts 1609 E Gude Dr, Rockville 20850 | (301) 279-0202 |
| Maryland Ki Society Inc 15405 Narcissus Way, Rockville 20853 | (301) 871-9155 |
| Institute Of World Karate 4935 Wyaconda Rd, Rockville 20852 | (301) 738-9094 |
| International Martial Arts 16823 Crabbs Branch Way, Rockville 20855 | (301) 519-7515 |
| Kim Studio 15810 Redland Rd, Rockville 20855 | (301) 963-4426 |
| Jin Pal Hapkido 11410 Rockville Pike, Rockville 20852 | (301) 881-8888 |
| Kenshin Karate School 12944 Travilah Rd, Rockville 20854 | (301) 926-8339 |