| Business | Phone |
| Ranger Real Estate Research Co 9801 Westheimer Rd 302, Houston 77042 | (713) 647-9898 |
| Carver Institute 2646 South Loop W, Houston 77054 | (713) 661-4949 |
| Creative Consumer Research 12200 Gulf Fwy, Houston 77034 | (713) 378-4782 |
| Eva Smith 410 Emerson St, Houston 77006 | (713) 528-7020 |
| Mettel Inc 5333 Westheimer Rd 500, Houston 77056 | (713) 840-9500 |
| Ufsa 12000 Richmond Ave 200, Houston 77082 | (713) 266-6277 |
| North American Insights Llc 5085 Westheimer Rd, Houston 77056 | (713) 629-6000 |
| Acheiva Research Foundation 4803c Main St, Houston 77002 | (713) 649-3585 |
| Regatta Research & Money Mgmt 909 Texas St, Houston 77002 | (713) 224-4636 |
| Rth Research Group 3400 Montrose Blvd, Houston 77006 | (713) 523-9722 |
| Trial Focus 4515 Yoakum Blvd, Houston 77006 | (713) 807-0852 |
| Thomas Research Inc 4917 Eigel St, Houston 77007 | (713) 862-6500 |
| Promark 11550 Old Main Street Loop Rd, Houston 77025 | (713) 665-0424 |
| University-Tx Health Science 6431 Fannin St Msb1614, Houston 77030 | (713) 500-6725 |
| Opinions Unlimited Inc 7011 Harwin Dr, Houston 77036 | (713) 888-0202 |
| Silicius Technologies 2610 W Sam Houston Pkwy, Houston 77036 | (713) 353-7400 |
| Waystone Research 8918 Grape St, Houston 77036 | (713) 271-5341 |
| Polykinetics Inc 5829 W Sam Houston Pkwy N 10, Houston 77041 | (713) 896-8600 |
| Andrew & Assoc 5103 Heathercrest St, Houston 77045 | (713) 471-0922 |
| Opinions Unlimited 3 Riverway, Houston 77056 | (713) 880-0202 |
| Thompson Investor's Research 4801 Woodway Dr, Houston 77056 | (713) 964-2630 |
| Universities Space Research 3600 Bay Area Blvd, Houston 77058 | (281) 244-2000 |
| Pharm Olam Intl Ltd 450 N Sam Houston Pkwy E 250, Houston 77060 | (281) 820-9746 |
| Tax Whiz Inc 3845 Fm 1960 Rd W, Houston 77068 | (281) 586-0883 |
| Promark Research Corp 4606 Fm 1960 Rd W 530, Houston 77069 | (281) 397-0080 |
| Pds Development 12345 Jones Rd, Houston 77070 | (281) 477-0525 |
| O'Brien Research Field Staff 7714 Westwind Ln, Houston 77071 | (713) 772-4858 |
| Peterson Group 12223 Sugar Springs Dr, Houston 77077 | (281) 759-2700 |
| Past Quest Research Svc 955 Dairy Ashford St 218, Houston 77079 | (281) 293-7278 |
| Translation Co 15995 N Barkers Landing Rd, Houston 77079 | (281) 531-9908 |
| 3-D Automation 16360 Park Ten Pl, Houston 77084 | (281) 398-6700 |
| Parkway Research 18010 Bambridge Dr, Houston 77090 | (281) 537-5358 |
| Car Research Inc 5005 W 34th St 200, Houston 77092 | (713) 812-7255 |
| Nielsen Media Research Po Box 924047, Houston 77292 | (713) 957-8971 |
| Saurage Research Houston 77098 | (713) 526-2415 |
| Reserve Technology Institute 2610 Dunlavy St A, Houston 77006 | (713) 521-7977 |
| Texas Transportation Institute 701 N Post Oak Rd 430, Houston 77024 | (713) 686-2971 |
| Savitz Research 5177 Richmond Ave 1290, Houston 77056 | (713) 621-4084 |
| Suma Partners 4801 Woodway Dr, Houston 77056 | (713) 622-4880 |
| Welling & Co 4801 Woodway Dr, Houston 77056 | (713) 623-8808 |
| Voter-Consumer Research 3845 Fm 1960 Rd W 440, Houston 77068 | (281) 893-1010 |
| Treymark Co 811 Threadneedle St 257, Houston 77079 | (281) 584-0179 |
| Sunbelt Sales & Marketing 10895 Fallstone Rd, Houston 77099 | (281) 561-6330 |
| Plunkett Research Po Box 541737, Houston 77254 | (713) 932-0000 |