| Business | Phone |
| Don West & Assoc 11029 Shady Trl 120, Dallas 75229 | (214) 366-4499 |
| Eberhardt Tolbert & Assoc 2639 Walnut Hill Ln # 215, Dallas 75229 | (214) 352-1985 |
| Polygraph Science Ctr 3030 Lbj Fwy 700, Dallas 75234 | (817) 691-4185 |
| Lauderdale & Assoc Inc 11029 Shady Trl 115, Dallas 75229 | (214) 357-5300 |
| Meehan & Assoc 11052 Shady Trl 201, Dallas 75229 | (214) 351-9109 |
| Burnham Investigations 14423 Sunrose Ln P, Dallas 75234 | (214) 739-6994 |
| Teigen Assoc 8330 Meadow Rd 204, Dallas 75231 | (214) 987-1110 |
| Behavioral Measures & Forensic 1720 Regal Row 120, Dallas 75235 | (972) 437-4597 |
| Parker-Jones Inc 1720 Regal Row 120, Dallas 75235 | (214) 631-8766 |