| Business | Phone |
| Prime Communications 5310 Weslayan St, Houston 77005 | (713) 662-2444 |
| South Cross Security 4008 Artdale St, Houston 77063 | (713) 664-1120 |
| Traf-Tex Inc 8420 Hansen Rd, Houston 77075 | (713) 643-5522 |
| Psa Electronic Systems 5253 Nolda St, Houston 77007 | (713) 869-1199 |
| Richardson Electronic Security 13105 Northwest Fwy 900, Houston 77040 | (713) 460-2409 |
| Secom 12615 Jones Rd 200, Houston 77070 | (281) 894-5256 |
| Alarm Screens Inc 10200 Hempstead Rd 2e, Houston 77092 | (713) 956-0754 |
| Security Store 9572 Hempstead Rd, Houston 77092 | (713) 957-2915 |
| Viking Supplynet 11850 Hempstead Rd 250, Houston 77092 | (713) 695-6591 |
| Wells Fargo Alarm Svc 4930 Dacoma St C, Houston 77092 | (713) 224-6815 |