| Business | Phone |
| Bolt Technology Corp 10777 Westheimer Rd 1100, Houston 77042 | (713) 784-8200 |
| Geo-X Systems Inc 2929 Briarpark Dr 312, Houston 77042 | (713) 780-7171 |
| Pulse Radar Inc 3535 Briarpark Dr # 207, Houston 77042 | (713) 977-0557 |
| Ardco Industries Inc 322 Riley Rd, Houston 77047 | (713) 433-6751 |
| C A Richards & Assoc Inc 777 N Eldridge Pkwy 280, Houston 77079 | (281) 531-7417 |
| Fugro Robertson 5700 S Rice Ave # D, Houston 77081 | (713) 839-8225 |
| Geoview Manufacturing Inc Houston 77024 | (713) 932-7967 |
| Maridan Usa 8584 Katy Fwy 435, Houston 77024 | (713) 973-6064 |
| Lti Inc 11111 Jones Rd W, Houston 77065 | (281) 469-2152 |