| Business | Phone |
| Ark La Tex Investigations 202 Pope City Rd, Marshall 75670 | (903) 927-2522 |
| Informaquest Investigative Svc Marshall 75670 | (903) 923-8883 |
| Jones Investigations Marshall 75670 | (903) 935-5963 |
| Lone Star Investigations 202 Pope City, Marshall 75670 | (903) 927-2495 |