| Business | Phone |
| Advanced Technolgies Consultin 743 N Horne St, Duncanville 75116 | (214) 929-6640 |
| North American Info Systems 1203 S Cedar Ridge Dr, Duncanville 75137 | (972) 572-3115 |
| Southwest Infoserve Inc 318 Swan Ridge Pl, Duncanville 75137 | (972) 572-3630 |
| Price-Tech Computer Svc 319 Roma Dr, Duncanville 75116 | (972) 296-3260 |
| Sexton's Computer Svc 307 S Alexander Ave, Duncanville 75116 | (972) 780-1338 |