| Business | Phone |
| Control Technologies 6780 Katella Ave, Cypress 90630 | (714) 901-3500 |
| Tdk Corp Of America 11137 Warland Dr, Cypress 90630 | (562) 596-1212 |
| Leader Instruments Corp 6484 Commerce Dr, Cypress 90630 | (714) 527-9300 |
| Mitsubishi Electronics America 5665 Plaza Dr, Cypress 90630 | (714) 220-2500 |
| Panasonic 6550 Katella Ave, Cypress 90630 | (714) 373-7022 |