| Business | Phone |
| Elna America Inc 5770 Warland Dr # B, Cypress 90630 | (714) 761-8600 |
| Focus Technologies 10703 Progress Way, Cypress 90630 | (714) 220-1900 |
| Ushio America Inc 5440 Cerritos Ave, Cypress 90630 | (714) 236-8600 |
| Medcom-Trainex Inc 6060 Phyllis Dr, Cypress 90630 | (714) 891-1443 |
| Medison America Inc 11075 Knott Ave, Cypress 90630 | (714) 889-3000 |