| Business | Phone |
| American Industrial Invstgtv 5101 Wilfong Rd, Memphis 38134 | (901) 373-2994 |
| Thomas Montgomery Private 5989 Poplar Pike Ext, Memphis 38119 | (901) 624-2000 |
| Stealth Investigative Svc 3340 Poplar Ave, Memphis 38111 | (901) 756-9070 |
| Sonny Summerall 3977 Victor Dr, Memphis 38122 | (901) 493-1162 |
| Cornerstone Protective Svc 3582 Ellenview Cv N, Memphis 38133 | (901) 372-0900 |
| Federated Pi 3340 Poplar Ave, Memphis 38111 | (901) 324-1026 |
| Greg Hill & Assoc 369 N Main St, Memphis 38103 | (901) 218-5482 |
| Inquisitor Inc 364 S Front St, Memphis 38103 | (901) 526-6576 |
| Investigative Services Co Po Box 34846, Memphis 38184 | (901) 377-8855 |