| Business | Phone |
| Ats Security Corp 12331 1/2 W Washington Blvd, Los Angeles 90066 | (310) 391-4687 |
| Nutone Sales & Svc Center 4426 Victoria Park Pl, Los Angeles 90019 | (323) 939-9140 |
| Southland Sound Corp 1145 S Ford Blvd, Los Angeles 90022 | (323) 266-4575 |
| Aar Security 1545 Brockton Ave # 2, Los Angeles 90025 | (310) 392-6267 |
| Max Communications 5455 Wilshire Blvd # 914, Los Angeles 90036 | (323) 933-5561 |