| Business | Phone |
| Choi's Martial Arts-Union City 31816 Alvarado Blvd, Union City 94587 | (510) 477-9552 |
| Dragon's Den Kajukenbo Club 3996 Horner St, Union City 94587 | (510) 477-6800 |
| Hernandez Kajukenbo 33476 Alvarado Niles Rd, Union City 94587 | (510) 487-3790 |
| Mac Self Defense 31018 Union City Blvd, Union City 94587 | (510) 471-2145 |
| Manila Tae Kwon Do-Kmac 32023 Alvarado Blvd, Union City 94587 | (510) 441-8661 |