| Business | Phone |
| Dependable Alarm Systems 1123 Industrial Ave, San Diego 92101 | (619) 233-8550 |
| Datalink Communications 1761 Hotel Cir S, San Diego 92108 | (619) 291-1430 |
| Simplex Grinnell 9855 Carroll Canyon Rd, San Diego 92131 | (858) 740-0100 |
| Power Communication Systems 4643 Mission Gorge Pl # A, San Diego 92120 | (619) 583-7400 |
| Fire Alarm 707 Broadway, San Diego 92101 | (619) 235-0904 |
| Mayfair Homes Inc 7605 Family Cir, San Diego 92111 | (858) 565-1813 |
| Kilroy Realty 12390 El Camino Real, San Diego 92130 | (858) 259-8258 |