| Business | Phone |
| Interfacing Co 7230 Langtry St, Houston 77040 | (713) 895-0002 |
| Arccon Industries 701 Holmes Rd A, Houston 77045 | (713) 660-6601 |
| Burr Computers Environment Inc 20445 State Highway 249 350, Houston 77070 | (281) 374-8644 |
| Cable Routing & Teminationg 2603 Joel Wheaton Rd 119, Houston 77082 | (281) 558-3600 |
| Macdonaldsystems.Com 13700 Veterans Memorial Dr, Houston 77014 | (281) 580-6061 |