| Business | Phone |
| Supervision 8687 Melrose Ave # B120, Los Angeles 90069 | (310) 652-9510 |
| Powerline Audio-Video Lighting 2313 Selby Ave, Los Angeles 90064 | (310) 398-4844 |
| Electronic Systems Design 1880 Century Park E, Los Angeles 90067 | (310) 553-5408 |
| Sonic Vision Los Angeles 90025 | (310) 479-0795 |
| Maslak Friedenn Films 1750 N Harvard Blvd, Los Angeles 90027 | (323) 461-3268 |
| Sunset Studios Audio Visual 9911 W Pico Blvd, Los Angeles 90035 | (310) 277-0901 |
| Telesound Inc Beverly Glen, Los Angeles 90077 | (310) 441-0901 |
| NeoLogic Sound 8860 Corbin Avenue, #372, Los Angeles 91324 | (818) 814-6154 |