| Business | Phone |
| Customer Feedback Systems Lp 16600 Dallas Pkwy, Dallas 75248 | (972) 447-0900 |
| Re Rez 18333 Preston Rd 425 Mb, Dallas 75252 | (214) 239-3939 |
| Metromark 1833 Fuller Dr, Dallas 75228 | (214) 417-7397 |
| Entry Systems Div 12720 Hillcrest Rd 1030, Dallas 75230 | (972) 385-4565 |
| Opinions Unlimited Dallas 75231 | (214) 265-1700 |
| Digital Research Technologies 13801 Senlac Dr, Dallas 75234 | (972) 241-0200 |
| Hispanic Research Consultant 13747 Montfort Dr, Dallas 75240 | (972) 450-8400 |
| Information Unlimited Inc 13747 Montfort Dr 218, Dallas 75240 | (972) 386-4498 |
| Customer Survey Technologies 4241 Sigma Rd, Dallas 75244 | (972) 661-9050 |
| Market Facts Inc 5001 Spring Valley Rd, Dallas 75244 | (972) 387-5540 |
| Brann-Tracer 5151 Belt Line Rd, Dallas 75254 | (972) 726-0134 |
| Gfk Nop 5495 Belt Line Rd 200, Dallas 75254 | (972) 490-7250 |