| Business | Phone |
| Classic Investigative Svc 8821 Reseda Blvd, Northridge 91324 | (818) 886-3092 |
| I Spy Luv 2 Northridge 91324 | (818) 349-6820 |
| Jumpstreet Investigations Northridge 91324 | (818) 885-8975 |
| O'Keefe Investigations 9345 Reseda Blvd # 500, Northridge 91324 | (805) 577-1950 |