| Business | Phone |
| Rental Source Inc 2540 Old Denton Rd 110, Carrollton 75006 | (214) 350-8090 |
| D K Investigations Carrollton 75006 | (972) 416-6222 |
| Johnson Investigative Svc 1620 E Belt Line Rd 209, Carrollton 75006 | (972) 466-1212 |
| Asa Information Svc 3610 N Josey Ln 223, Carrollton 75007 | (972) 394-1175 |
| Information Services Invstgtns Po Box 116138, Carrollton 75011 | (972) 394-3538 |