| Business | Phone |
| Mercer Human Resource Cnsltng 1717 Main St 4400, Dallas 75201 | (214) 220-3500 |
| Optimum Hr Consulting Svc 15303 Dallas Pkwy, Dallas 75240 | (972) 392-7823 |
| Watson Wyatt & Co 2001 Ross Ave 4200, Dallas 75201 | (214) 530-4200 |
| Martin Gilanfar Human Resource 5820 Alpha Rd, Dallas 75240 | (972) 386-7600 |
| Btabhr Svc 2351 W Northwest Hwy # 2308, Dallas 75220 | (469) 621-4400 |
| Synapse Human Resource Cnsltng 7557 Rambler Rd 1425, Dallas 75231 | (214) 891-5977 |
| Lacerte Technologies Inc 5950 Sherry Ln 900, Dallas 75225 | (214) 987-4567 |
| Payroll Central Dallas 75220 | (214) 654-0000 |
| Propensity Limited Dallas 75225 | (214) 379-1601 |
| Popular Insights 5510 Lindenshire Ln, Dallas 75230 | (972) 701-0222 |
| H R Southwest 4100 Spring Valley Rd, Dallas 75244 | (214) 631-7476 |
| Performance Assessment Network 14221 Dallas Pkwy, Dallas 75254 | (214) 540-7360 |
| One Source 5016 Mckinney Ave, Dallas 75205 | (214) 599-0275 |
| AGResearch International, LLC 5001 LBJ Freeway, Suite 700, Dallas 75244 | (940) 591-1400 |