| Business | Phone |
| Abm Security Svc 18425 Burbank Blvd, Tarzana 91356 | (818) 774-0113 |
| Drum Security Svc Inc 5554 Reseda Blvd # 201, Tarzana 91356 | (818) 708-7914 |
| Great Western Security Svc Tarzana 91356 | (818) 881-6286 |
| National Security 19659 Ventura Blvd, Tarzana 91356 | (818) 345-9686 |