| Business | Phone |
| Cad Solutions 16406 Wall St, Houston 77040 | (713) 937-3537 |
| Impac Systems Ltd 3200 Wilcrest Dr, Houston 77042 | (713) 784-3500 |
| Acad Advantage Inc 3350 Highway 6 S, Houston 77082 | (713) 582-2223 |
| Aced-Plus Inc 10515 Rodgers Rd, Houston 77070 | (281) 890-3300 |
| Cadtech Solutions Inc 2630 Fountain View Dr 315, Houston 77057 | (713) 972-9383 |
| Mlc Cad Systems 10777 Northwest Fwy 175, Houston 77092 | (713) 682-7490 |
| Integrated Ware 8104 Lynette St, Houston 77028 | (713) 633-6093 |