| Business | Phone |
| Rotork Controls Inc 9777 W Gulf Bank Rd # 15a, Houston 77040 | (713) 782-5888 |
| Rotork Gears 9777 W Gulf Bank Rd, Houston 77040 | (713) 983-7381 |
| Vac Systems Inc 7201 Fairbanks N Houston Rd, Houston 77040 | (713) 466-1855 |
| Wlh & Assoc 6817 Flintlock Rd D, Houston 77040 | (713) 460-9612 |
| A & A Associated Div 9040 Triola Ln, Houston 77036 | (713) 988-9539 |
| Auma Actuators Inc 15819 Boulder Oaks Dr, Houston 77084 | (281) 859-4056 |
| Bennex Subsea Houston Inc 1330 Sherwood Forest St, Houston 77043 | (713) 973-9000 |
| Bernard Controls Inc 15740 Park Row 100, Houston 77084 | (281) 578-6666 |
| C I Actuation 1619 E Richey Rd, Houston 77073 | (281) 209-3800 |
| Cvi Solutions 11001 S Wilcrest Dr 125, Houston 77099 | (713) 827-0888 |
| Dopak Sampling Systems 9572 Kempwood Dr, Houston 77080 | (713) 460-8311 |
| Envalco Corp 15721 W Hardy Rd 1, Houston 77060 | (281) 447-4200 |
| Flowneticks 10913 Metronome Dr, Houston 77043 | (713) 935-0085 |
| Metso/Jamesbury Inc 15603 W Hardy Rd, Houston 77060 | (281) 820-1213 |
| Gevalco Inc 8805 Solon Rd G1, Houston 77064 | (281) 477-7771 |
| Gulf Coast Automation 917 Oakgrove Dr 200, Houston 77058 | (281) 480-7260 |
| Ledeen 1620 Port Northwest Dr, Houston 77041 | (832) 590-2301 |
| Industrial Specialties Co-Tx 6205 Brookhill Dr 3, Houston 77087 | (713) 643-2155 |
| Jamesbury Inc 15603 W Hardy Rd # 355, Houston 77060 | (281) 445-9989 |