| Business | Phone |
| C Dimensions 3913 Branch Hollow Dr, Plano 75023 | (972) 881-5577 |
| Data Preparation Intl Ltd 820 Avenue F 102, Plano 75074 | (214) 638-4130 |
| Datacom Power Inc 3020 Legacy Dr 100 Pmb 380, Plano 75023 | (972) 491-0987 |
| Insland Steel Accounts Payable 7000 Parkwood Blvd, Plano 75024 | (972) 605-0113 |
| J & D Data Svc 2828 W Parker Rd, Plano 75075 | (972) 596-6474 |
| Mc Donald Data Svc 820 F Ave 102, Plano 75074 | (972) 424-1212 |
| Perot Systems Corp 5900 W Plano Pkwy, Plano 75093 | (972) 713-0640 |
| Source Data 3415 Custer Rd 114, Plano 75023 | (972) 867-0662 |