| Business | Phone |
| Great Western Security 900 W 1st St, Reno 89503 | (775) 786-0660 |
| American Investigators 955 S Virginia St 200, Reno 89502 | (775) 337-1117 |
| George E Knopf Investigations 4790 Caughlin Pkwy 252, Reno 89509 | (775) 691-4330 |
| Jag Investigations 1783 Back Country Rd, Reno 89521 | (775) 852-9949 |