| Business | Phone |
| Cisco Systems 3400 Waterview Pkwy, Richardson 75080 | (972) 437-6507 |
| Cubestone 801 E Campbell Rd, Richardson 75081 | (972) 437-4505 |
| Southwest Data Technology Inc 860 N Dorothy Dr 608, Richardson 75081 | (972) 739-7010 |
| Chip Data 2220 Campbell Creek Blvd, Richardson 75082 | (972) 437-3867 |
| Cisco Systems 2200 E President George Bush, Richardson 75082 | (214) 575-3192 |