| Business | Phone |
| Tvr Svc Systems & Engineering 12120 Dry Creek Rd, Auburn 95602 | (530) 823-7222 |
| Nsc-Federal's Security Po Box 6088, Auburn 95604 | (530) 823-9223 |
| Power Protection Plus 50 Sutherland Dr, Auburn 95603 | (530) 885-7936 |
| Tactical Security Assoc Auburn 95603 | (530) 823-9223 |