| Business | Phone |
| Business Music & Communication 8450 Production Ave, San Diego 92121 | (858) 621-2155 |
| Digital Hold Systems 2221 Camino Del Rio S # 100, San Diego 92108 | (619) 299-6981 |
| Muzak Drive-Thru Operations 9255 Chesapeake Dr, San Diego 92123 | (619) 291-6800 |