| Business | Phone |
| Americom Telecomm Inc-Ati 3544 E T C Jester Blvd, Houston 77018 | (713) 688-8299 |
| Danos Curole Marine Contractor 13101 Northwest Fwy, Houston 77040 | (713) 895-7300 |
| Lane Telecommunication Inc 7155 Old Katy Rd, Houston 77024 | (713) 861-7218 |
| Global Data System 9301 Southwest Fwy, Houston 77074 | (713) 774-4240 |
| Datacom Sales & Assoc Inc Po Box 690633, Houston 77269 | (281) 894-8224 |
| 3 Com 1111 North Loop W, Houston 77008 | (281) 407-2350 |
| Advanced Datacomm Inc 519 N Sam Houston Pkwy E, Houston 77060 | (281) 631-0110 |
| Center Line Data 5333 Westheimer Rd # 100, Houston 77056 | (281) 376-4700 |
| Dees Communications 4801 Woodway Dr, Houston 77056 | (713) 513-4803 |
| E Z Link 1110 Nasa Rd 1, Houston 77058 | (281) 333-2400 |
| Fujitsu Network Communications 14450 T C Jester Blvd, Houston 77014 | (832) 242-7574 |
| Millertech Inc 7351 Parkland Manor Dr, Houston 77084 | (281) 861-8776 |
| Millertech Inc 9894 Bissonnet St, Houston 77036 | (281) 861-8772 |
| Metrocom Communications Inc 10702 Fallstone Rd, Houston 77099 | (281) 495-6500 |
| National Business Group 340 N Sam Houston Pkwy E # 200, Houston 77060 | (281) 448-2223 |