| Business | Phone |
| Optex 1845 W 205th St, Torrance 90501 | (310) 782-9925 |
| R F Logics Inc 370 Amapola Ave # 106, Torrance 90501 | (310) 782-8383 |
| Apex Security Torrance 90503 | (310) 551-1919 |
| M & J Video Comms Inc Torrance 90503 | (310) 404-8433 |
| Networker Services Group Torrance 90503 | (310) 944-9110 |
| Star Security Systems Inc 4508 Toucan St, Torrance 90503 | (310) 542-6340 |
| Arrow Security 2539 W 237th St # G, Torrance 90505 | (310) 325-3060 |
| Innovision Products Inc 24050 Madison St, Torrance 90505 | (310) 378-6911 |