| Business | Phone |
| Ahs Security Inc 717 Lingco Dr, Richardson 75081 | (972) 386-6214 |
| All Tech Security Svc 1616 Gateway Blvd, Richardson 75080 | (972) 644-8305 |
| American Security Devices 1247 American Pkwy, Richardson 75081 | (972) 437-0656 |
| Inhouse Security & Sound 254 E Arapaho Rd 180, Richardson 75081 | (972) 231-4406 |
| Secure Technologies Inc 851 International Pkwy 181, Richardson 75081 | (972) 231-2479 |