| Business | Phone |
| Contemporary Services 17101 Superior St, Northridge 91325 | (818) 885-5150 |
| Omega Security Svc & Consultant 10611 Garden Grove Ave, Northridge 91326 | (818) 831-1100 |
| World Private Security Svc 16921 Parthenia St, Northridge 91343 | (818) 894-1800 |
| Alliance International Scrty 8448 Reseda Blvd # 201, Northridge 91324 | (818) 349-1911 |
| Body Guard Usa 10201 Reseda Blvd, Northridge 91324 | (818) 734-6675 |
| Hawks Protection Svc 8448 Reseda Blvd, Northridge 91324 | (818) 993-3293 |
| Knighthawk Security Svc Inc Northridge 91324 | (818) 886-4355 |
| Rose Security 8448 Reseda Blvd, Northridge 91324 | (818) 363-8983 |
| Wackenhut Corp 8550 Balboa Blvd # 206, Northridge 91325 | (818) 891-6462 |