| Business | Phone |
| Carey & Assoc Inc 14142 Aston St, Houston 77040 | (713) 460-1111 |
| D A Mid-South Inc 9000 Jameel Rd 100, Houston 77040 | (713) 895-0090 |
| Richardson Security Systs Div 13105 Northwest Fwy 900, Houston 77040 | (713) 996-3800 |
| Icu Solutions 5900 N Braeswood Blvd, Houston 77074 | (713) 240-4434 |
| Access & Video Integration 55 Lyerly St # 209, Houston 77022 | (713) 695-4545 |
| Ave Multview Houston 77073 | (281) 443-2300 |
| Carey & Assoc Inc 12411 Normont Dr, Houston 77070 | (713) 460-1111 |
| Chameleon Enterprises 9834 La Vista Dr, Houston 77041 | (713) 939-8426 |
| Chubb Security 14340 Torrey Chase Blvd # 115, Houston 77014 | (281) 397-6900 |
| Citadel Industries Inc 10405 Hartsook St, Houston 77034 | (713) 941-6500 |
| Design Security Controls Inc 9434 Old Katy Rd, Houston 77055 | (713) 464-8407 |
| Monarch Security 6699 Portwest Dr 140, Houston 77024 | (713) 861-5894 |
| Municipal Camara Systems 12410 Caren Ct, Houston 77031 | (281) 495-6772 |