| Business | Phone |
| West Texas Investigation Inc 6207 Ridgewood Dr, Amarillo 79109 | (806) 354-0557 |
| Patricia Chambers Invstgtns 6666 W Amarillo Blvd 2, Amarillo 79106 | (806) 359-5989 |
| Perkins Investigative Agency 4801 Mckinley Ln, Amarillo 79110 | (806) 322-2441 |
| Gonzales Investigations Amarillo 79107 | (806) 381-0356 |
| Jim Patterson Investigations Po Box 8581, Amarillo 79114 | (806) 680-9977 |
| Barlow Investigations 301 S Polk St 640n, Amarillo 79101 | (806) 376-7030 |
| Leggett Investigations 4174 Canyon Dr, Amarillo 79109 | (806) 352-8070 |
| Advantage Investigations 5801 W 50th Ave, Amarillo 79109 | (806) 679-7434 |
| Cheat Busters 600 S Tyler St # 1313, Amarillo 79101 | (806) 220-2890 |
| Crown Investigations 101 W 5th Ave 201, Amarillo 79101 | (806) 374-0265 |
| Darrell L Dewey Security Sys 801 S Fillmore St, Amarillo 79101 | (806) 351-1060 |