| Business | Phone |
| Pexcon International Inc 7322 Southwest Fwy, Houston 77074 | (713) 981-4773 |
| Aoa Geophysics Inc 1300 W Sam Houston Pkwy S #225, Houston 77042 | (713) 532-2624 |
| Austin Exploration Inc 10333 Westoffice Dr, Houston 77042 | (713) 780-7141 |
| Digital Prospectors Inc 2000 W Sam Houston Pkwy S 320, Houston 77042 | (281) 920-9752 |
| Geotech Consulting 10711 Shady River Dr, Houston 77042 | (713) 953-7630 |
| Geotech Groups 9800 Richmond Ave, Houston 77042 | (713) 334-6020 |
| Geotex Co 2900 Wilcrest Dr # 165, Houston 77042 | (713) 334-8400 |
| Intrex Inc 11191 Westheimer Rd 908, Houston 77042 | (281) 493-0800 |
| Odegaard America Inc 2901 Wilcrest Dr, Houston 77042 | (832) 242-2100 |
| Padgett Exploration 800 Wilcrest Dr 225, Houston 77042 | (713) 781-8139 |
| Petroleum Geo Svc 10550 Richmond Ave, Houston 77042 | (713) 781-4000 |
| Tensor Geophysical 10550 Richmond Ave, Houston 77042 | (713) 952-1037 |
| Western Geco Llc 10001 Richmond Ave, Houston 77042 | (713) 789-9600 |
| Wilson Geophysical Inc 11011 Richmond Ave, Houston 77042 | (713) 977-4900 |
| Adams & Starr Geophysicists 16360 Park Ten Pl, Houston 77084 | (281) 398-6669 |
| Advanced Data Solutions 1616 S Voss Rd, Houston 77057 | (713) 339-1616 |
| Allen Geophysicsal Consulting 3616 Bellaire Blvd, Houston 77025 | (713) 665-2801 |
| Alpha Geo Inc 16360 Park Ten Pl 102, Houston 77084 | (281) 578-0286 |
| Joy J Anneler 2650 Fountain View Dr, Houston 77057 | (713) 781-6350 |
| Bgp Intl Inc 10630 Haddington Dr, Houston 77043 | (713) 465-7111 |
| C R Bass & Assoc 2500 Tanglewilde St, Houston 77063 | (713) 932-1432 |
| Carrera Svc Inc 2401 Fountain View Dr, Houston 77057 | (713) 993-0671 |
| Centerline Geophysical Inc 10804 Fallstone Rd 200, Houston 77099 | (281) 498-3300 |
| Earthfield Technology Inc 650 N Sam Houston Pkwy E, Houston 77060 | (281) 847-1666 |
| Fugro-Lct Houston Inc 6100 Hillcroft St 500, Houston 77081 | (713) 369-6100 |
| Geo Mechanics Intl Inc 5373 W Alabama St, Houston 77056 | (713) 599-0373 |
| Geocenter Inc 16800 Greenspoint Park 100s, Houston 77060 | (281) 443-8150 |
| Geoscience Earth & Marine Svc 10615 Shadow Wood Dr 200, Houston 77043 | (713) 468-1410 |
| Geosignal Inc 11111 Katy Fwy, Houston 77079 | (713) 973-0828 |
| Geotex Co 5925 Sovereign Dr, Houston 77036 | (713) 271-1229 |
| Givrals Sandwich Shop 2800 Travis St, Houston 77006 | (713) 526-5611 |
| Goh Exploration Inc 2537 S Gessner Rd 209, Houston 77063 | (713) 789-9344 |
| Gulf Coast Geo Data 10615 Shadow Wood Dr 106, Houston 77043 | (713) 461-3757 |
| Lynn Inc 14732 Perthshire Rd F, Houston 77079 | (281) 497-1238 |
| Hayes Information Mgmt Inc 5603 S Rice Ave, Houston 77081 | (713) 610-6650 |
| Land Jp Assoc Inc 7706 Dashwood Dr, Houston 77036 | (713) 271-1567 |
| Houston Geological Society 7457 Harwin Dr, Houston 77036 | (713) 785-9729 |
| Exploration Techniques 3100 Timmons Ln 200, Houston 77027 | (713) 526-0828 |
| Kevin M Smith Inc 2000 S Dairy Ashford St 310, Houston 77077 | (281) 531-0013 |
| Hunter 3-D Inc 6001 Savoy Dr 110, Houston 77036 | (713) 981-4650 |
| Hydrosearch Usa Inc 16360 Park Ten Pl, Houston 77084 | (281) 646-0120 |
| Just Geo 1880 S Dairy Ashford St 203, Houston 77077 | (281) 597-1237 |
| Indexgeo & Assoc Inc 4909 Main St, Houston 77002 | (713) 526-3746 |
| Integrated Geophysics 710 N Post Oak Rd, Houston 77024 | (713) 680-9996 |
| Interactive Interpretation 11767 Katy Fwy, Houston 77079 | (281) 920-4450 |
| Multiwave Geophysical Houston 77041 | (713) 937-9003 |