| Business | Phone |
| A Anthony Mansur & Assoc 1975 Iowa St, Baton Rouge 70802 | (225) 262-1021 |
| Advantage Information Svc 2160 Quail Oak Dr, Baton Rouge 70808 | (225) 767-0803 |
| Comprehensive Investigations 8044 Summa Ave B, Baton Rouge 70809 | (225) 769-2000 |
| Evans Investigations 5432 Superior Dr # B, Baton Rouge 70816 | (225) 291-8388 |
| Factfinders Inc 319 Saint Charles St, Baton Rouge 70802 | (225) 383-7401 |
| Anthony N Graphia Po Box 77681, Baton Rouge 70879 | (225) 753-1763 |
| Hahn & Assoc 1234 Verdun Dr, Baton Rouge 70810 | (225) 769-2775 |
| Ken Netterville & Assoc Baton Rouge 70802 | (225) 344-0000 |
| La Investigative Svc 18323 Hoo Shoo Too Rd, Baton Rouge 70817 | (225) 275-6882 |
| Lyons Research Group 5261 Highland Rd, Baton Rouge 70808 | (225) 766-5575 |
| Palmer & Assoc 12773 Brogdon Ln, Baton Rouge 70816 | (225) 752-9800 |
| Petersen Professional Invstgtn 9687 W Tampa Dr, Baton Rouge 70815 | (225) 927-3069 |
| Pierce & Assoc Llc 2244 Sassy Ln, Baton Rouge 70808 | (225) 336-9386 |
| Wilson & Wilson Investigations 17530 Nine Oaks Ave, Baton Rouge 70817 | (225) 755-0108 |
| Vanguard Security Inc Baton Rouge 70808 | (225) 405-4959 |
| Trace Research Svc 717 Brinwood Ave, Baton Rouge 70815 | (225) 273-3102 |