| Business | Phone |
| Amstan Security 10707 Edgefield Dr, San Antonio 78233 | (210) 564-8962 |
| Access Key Svc 8806 Tradeway St, San Antonio 78217 | (210) 829-5397 |
| Adi 853 Isom Rd, San Antonio 78216 | (210) 366-3327 |
| Advanced Security & Comm 322 Breesport St, San Antonio 78216 | (210) 477-1429 |
| Alarm Security Group 10429 Gulfdale St, San Antonio 78216 | (512) 377-4274 |
| Alarmsplus Inc 8806 Tradeway St, San Antonio 78217 | (210) 804-0242 |
| Central Security & Invstgtns 6836 San Pedro Ave 217, San Antonio 78216 | (210) 832-0693 |
| Clearworks Home Systems 7460 Callaghan Rd, San Antonio 78229 | (210) 308-0560 |
| Intergrators Whole Hse Control 7310 Blanco Rd 102, San Antonio 78216 | (210) 979-2881 |
| International Surveillance 7400 Blanco Rd 262, San Antonio 78216 | (210) 979-9002 |
| Johnson Controls Inc 326 W Nakoma St, San Antonio 78216 | (210) 349-9100 |
| Nextgenid 506 Sandau, San Antonio 78216 | (210) 530-9991 |
| Quality Control Installations 107 Shropshire Dr, San Antonio 78217 | (210) 828-8980 |
| Safeguard Security Group 1777 Ne Loop 410, San Antonio 78217 | (210) 820-3931 |
| San Antonio Security 431 Isom Rd 117, San Antonio 78216 | (210) 342-3100 |
| Secure Technical Systems 11765 West Ave 306, San Antonio 78216 | (210) 724-0436 |
| Security General Intl Store 500 Sandau 400, San Antonio 78216 | (210) 377-3197 |
| Syscom 8603 Botts St, San Antonio 78217 | (210) 805-9416 |
| Texas Systems Supply 500 Sandau Rd 400, San Antonio 78216 | (210) 377-3147 |
| Totalcom Management Inc 12150 Valliant St, San Antonio 78216 | (210) 366-1116 |
| Trace Systems Inc San Antonio 78217 | (210) 655-6588 |
| Tyght Security 3343 Deer Creek St, San Antonio 78230 | (210) 541-8018 |
| Vi-Dat Technologies San Antonio 78217 | (210) 599-6228 |
| Ads Security 7431 Reindeer Trl B, San Antonio 78238 | (210) 677-0040 |
| Adt 13603 Topper Cir, San Antonio 78233 | (210) 572-1800 |
| Armida Technologies Corp 14607 N Us Highway 281, San Antonio 78232 | (210) 403-9242 |
| Caps Technologies 3534 Fredericksburg Rd, San Antonio 78201 | (210) 736-2200 |
| Aprotex Corp 807 Dallas St, San Antonio 78215 | (210) 226-6366 |
| Doortek Corp 9107 Marbach Rd # 230, San Antonio 78245 | (210) 674-8482 |
| Draeger Interlock Inc 3453 Ih 35 N 102, San Antonio 78219 | (210) 229-1676 |
| Guardian Security Systems 16845 Blanco Rd 110, San Antonio 78232 | (210) 493-3314 |
| San Antonio Interactive 2502 Ashton Village Dr, San Antonio 78248 | (210) 479-0225 |
| Specialty Alarms & Systems Inc Po Box 65243, San Antonio 78265 | (210) 656-4372 |
| Maximum Security Adt 3111 N Zarzamora St, San Antonio 78201 | (210) 684-9581 |
| Modern Concepts 347 Overhill Dr, San Antonio 78228 | (210) 436-2945 |
| Protect All Security/Contract San Antonio 78232 | (210) 490-0833 |
| Ranger American 12500 Network Blvd 310, San Antonio 78249 | (210) 691-2815 |
| Residential Technology Svc 707 Mesa Rdg, San Antonio 78258 | (210) 481-3331 |
| San Antonio Security-Central 13750 N Us Highway 281 B40, San Antonio 78232 | (210) 733-8106 |
| Sloan Security Systems 13750 San Pedro B, San Antonio 78232 | (210) 477-1403 |
| Sterling Security 1716 S San Marcos 120, San Antonio 78207 | (210) 736-6200 |
| Stone City Design Group 5106 Newcastle Ln, San Antonio 78249 | (210) 641-7153 |
| Stowers Security Systems 4402 Eagle Nest Dr, San Antonio 78233 | (210) 590-7770 |
| A-1 Intercept Security 9806 Morningfield, San Antonio 78250 | (210) 681-6565 |
| Alamo Integrated Systems Inc 2805 Sw Loop 410, San Antonio 78227 | (210) 674-8041 |
| Locksmith San Antonio 999 East Basse #151, San Antonio 78209 | (210) 348-3677 |
| Friendly Security, Inc. 15150 Blanco Road Ste:8102, San Antonio 78232 | (210) 568-0306 |