| Business | Phone |
| Csi Intl Inc 5939 Nunn St, Houston 77087 | (713) 644-5353 |
| Kam Controls Inc 3939 Ann Arbor Dr, Houston 77063 | (713) 784-0000 |
| Invensys Process Systems 10900 Equity Dr, Houston 77041 | (713) 722-2700 |
| Jiskoot Inc 14503 Bammel N Houston Rd 110, Houston 77014 | (281) 583-0583 |