| Business | Phone |
| Sis Investigations 7440 Greenbush Ave, North Hollywood 91605 | (818) 255-3316 |
| Winston Grey Investigations North Hollywood 91605 | (818) 765-1010 |
| Clandestine Investigation North Hollywood 91601 | (818) 623-6749 |
| Jumpstreet Investigations North Hollywood 91601 | (818) 509-7580 |
| Medical Investigation Group North Hollywood 91601 | (818) 766-1365 |