| Business | Phone |
| Electronic Assembly Center 790 Palomar St # A, Chula Vista 91911 | (619) 429-9645 |
| Peaktronix 413 Horizon View Dr, Chula Vista 91910 | (619) 585-0648 |
| Nova Assembly Inc 180 Mace St # B13, Chula Vista 91911 | (619) 585-7468 |
| Industrial Automation & Contrl 2256 Main St # 16, Chula Vista 91911 | (619) 429-9734 |