| Business | Phone |
| Kroll Background America 13280 Northwest Fwy F, Houston 77040 | (713) 849-0025 |
| Cornersource Employment Scrng 9707 Richmond Ave 35, Houston 77042 | (713) 866-6577 |
| Your Information Source Inc 11200 Westheimer Rd 917, Houston 77042 | (281) 497-3770 |
| Associated Services Employment 2600 Gessner Dr 259, Houston 77080 | (713) 461-7381 |
| Cole Group 5225 Katy Fwy 250, Houston 77007 | (713) 880-9494 |
| D & D Pre-Employment Screening 5433 Westheimer Rd 330, Houston 77056 | (713) 850-9128 |
| Elliott & Iles 2701 Revere St, Houston 77098 | (713) 523-5585 |
| Liberty Screening Svc 1919 North Loop W 400, Houston 77008 | (713) 980-1751 |
| Information Protective Svc Po Box 800383, Houston 77280 | (713) 460-8884 |
| Montrose Group 2012 Brun St, Houston 77019 | (713) 524-7733 |