| Business | Phone |
| Fedrick Investigations Hattiesburg 39401 | (601) 297-4807 |
| Hunter Investigations Hattiesburg 39402 | (601) 268-3360 |
| Jim Dale Investigations Hattiesburg 39402 | (601) 268-8721 |
| Clayton Polygraph Services,LLC 612 North Main, Hattiesburg 39401 | (601) 606-1736 |