| Business | Phone |
| Data Flow Svc 14275 Midway Rd, Addison 75001 | (972) 239-2571 |
| Hbo 15455 Dallas Pkwy, Addison 75001 | (972) 450-1000 |
| Infonet Services Corp 15305 Dallas Pkwy, Addison 75001 | (972) 715-2004 |
| Noble Network Svc 15851 Dallas Pkwy, Addison 75001 | (972) 450-5991 |
| Qct Svc 15904 Dooley Rd, Addison 75001 | (972) 385-6215 |
| Revenur Enhancement Svc 14232 Marsh Ln, Addison 75001 | (972) 247-6115 |
| Universal Field Svc Inc 14677 Midway Rd 115, Addison 75001 | (972) 960-7121 |
| Vallis Form Svc 14275 Midway Rd 20, Addison 75001 | (972) 687-9180 |