| Business | Phone |
| Combined Martial Science 13615 12th St # A, Chino 91710 | (909) 628-3310 |
| U S Olympic Tae Kwan Do Center 3686 Riverside Dr, Chino 91710 | (909) 364-1370 |
| United State Karate Organ 5370 Schaefer Ave, Chino 91710 | (909) 591-3136 |
| Young Kim's Tae Kwon Do 12085 Central Ave, Chino 91710 | (909) 627-6900 |