| Business | Phone |
| Alarms-Fire 477 Myra Way, San Francisco 94127 | (415) 716-9292 |
| Cod Builders 11 Haight St, San Francisco 94102 | (415) 863-4704 |
| Economy Electric Svc San Francisco 94112 | (415) 585-0513 |
| Emergency Systems Maintenance 620 Ortega St, San Francisco 94122 | (415) 564-0400 |
| Pacific Auxiliary Fire Alarm 95 Boutwell St, San Francisco 94124 | (415) 467-9393 |
| San Francisco Fire Protection 48 Pier, San Francisco 94105 | (415) 975-0903 |
| Fire Detection Unlimited 92 Natoma St, San Francisco 94105 | (415) 947-0081 |