| Business | Phone |
| Adt 2625 Louisiana St, Houston 77006 | (713) 610-1252 |
| Brink's Home Security Inc Houston 77073 | (281) 821-9990 |
| Hilton & Assoc Inc 11115 Mills Rd, Houston 77070 | (281) 894-7503 |
| Pointsecure 802 Lovett Blvd, Houston 77006 | (713) 868-1222 |
| Texas Systems Supply 600 N Shepherd Dr 101, Houston 77007 | (713) 864-9255 |
| Vtrack 5160 Timber Creek Dr, Houston 77017 | (713) 782-5276 |
| J H Mc Kinzie 934 Chantilly Ln, Houston 77018 | (713) 681-7020 |
| Protech Access 4401 Pinemont Dr 204, Houston 77018 | (713) 776-8324 |
| Texas Surviellance System 902 Kress St, Houston 77020 | (713) 676-1177 |
| Hsm Electronic Protection Svc 6699 Portwest Dr 100, Houston 77024 | (713) 293-6800 |
| Westview Irrigation 1337 Cedar Post Ln, Houston 77055 | (713) 464-3318 |
| Safetysend Inc 5850 San Felipe St 500, Houston 77057 | (713) 554-6100 |
| X3connect Inc 2425 Fountain View Dr, Houston 77057 | (713) 952-4077 |
| Vid Corp Security Systems Inc 11402 Squiredale Dr, Houston 77070 | (281) 370-3505 |
| Scan Usa Corp 1250 Wood Branch Park Dr, Houston 77079 | (281) 752-8888 |
| Trans Core Houston 77081 | (713) 662-3663 |
| Quality Security Systems 9811 North Fwy B207, Houston 77037 | (281) 820-9650 |
| Crosby Lock and Key 11206 E. Jacinto, Houston 77044 | (281) 328-1717 |
| All State Lock & Key 12107 Veterans Memorial Drive, Houston 77067 | (713) 793-6809 |