| Business | Phone |
| M & M Security Svc Inc 3304 Bonniebrook, Richardson 75080 | (972) 234-6341 |
| Mike Discount Security Inc 1202 Richardson Dr, Richardson 75080 | (972) 889-9199 |
| Nacom Security 10105 Bridgegate Ln, Richardson 75081 | (972) 699-8006 |
| Videoguard Loss Protection 1819 Firman Dr, Richardson 75081 | (214) 480-8600 |