| Business | Phone |
| Altair Co 405 N Plano Rd, Richardson 75081 | (972) 231-5166 |
| Argo International Corp 670 International Pkwy 160, Richardson 75081 | (972) 234-9393 |
| Bell Microproducts 101 W Renner Rd 280, Richardson 75082 | (972) 783-4191 |
| El Coteq Npi 1700 International Pkwy 300, Richardson 75081 | (972) 250-3091 |
| Ericsson Network Systems Inc 1010 E Arapaho Rd, Richardson 75081 | (972) 583-0000 |
| Hammond Electronics 1360 Presidential Dr 150, Richardson 75081 | (972) 705-9340 |
| Insight Electronics 1778 N Plano Rd, Richardson 75081 | (469) 624-5300 |
| Jaco Electronics Inc 508 Twilight Trl 201, Richardson 75080 | (972) 234-5565 |
| Kensington Electronics Inc Richardson 75080 | (972) 671-7430 |
| Nu Horizons Electronics Corp 2425 N Central Expy, Richardson 75080 | (972) 479-1400 |
| Promor Electronic Components 777 N Grove Rd 105, Richardson 75081 | (972) 671-1212 |
| Rep Tech Controls 1100 Centennial Blvd 251, Richardson 75081 | (214) 343-2730 |
| Rsc Electronics 1300 E Arapaho Rd, Richardson 75081 | (972) 644-3444 |
| Samsung Telecom America 1130 E Arapaho Rd, Richardson 75081 | (972) 761-7000 |
| Autogram/Crl 408 Canyon Creek Dr, Richardson 75080 | (972) 424-8585 |