| Business | Phone |
| Air Liquide America Corp 700 Decoto Rd, Union City 94587 | (510) 429-4200 |
| Aprex 2849 Whipple Rd # B, Union City 94587 | (510) 476-1940 |
| Axon Instruments Inc 3280 Whipple Rd, Union City 94587 | (510) 675-6200 |
| Baldur Systems Corp 33235 Transit Ave, Union City 94587 | (510) 477-9194 |
| Clinpro International 4825 Gina Way, Union City 94587 | (510) 489-6093 |
| Orthopedic Systems Inc 30031 Ahern Ave, Union City 94587 | (510) 429-1500 |