| Business | Phone |
| Adi 1737 Atlanta Ave # H1, Riverside 92507 | (951) 787-6790 |
| Advanced Alarms Plus 3410 La Sierra Ave # F-179, Riverside 92503 | (951) 686-3113 |
| Alarm King 3361 Chicago Ave, Riverside 92507 | (951) 222-7070 |
| California Security Alliance 6859 Palm Ave, Riverside 92506 | (951) 787-1959 |
| D C Electronics Ii 1175 Center St, Riverside 92507 | (951) 686-2029 |
| Honeywell 783 Palmyrita Ave, Riverside 92507 | (951) 781-0770 |
| A-1 Security Systems Riverside 92501 | (951) 788-8130 |
| Advance Detection Technologies 9309 Narnia Dr, Riverside 92503 | (951) 687-6293 |
| Advanced Alarms Plus 3083 Westfield Dr, Riverside 92503 | (951) 351-8183 |
| Eye To Eye Surveillance 7057 Caprice Way, Riverside 92504 | (951) 689-5911 |
| Graydon Electrical Systems 5504 Wayman St, Riverside 92504 | (951) 689-9057 |
| Inland Alarm Co Riverside 92503 | (951) 688-1341 |
| Lesco Alarm Co 7198 Pico Ave, Riverside 92509 | (951) 681-8778 |
| Aba Alarm Co Inc 11883 Magnolia Ave, Riverside 92503 | (951) 358-0691 |
| Peterson Security Svc 5237 Old Mill Rd, Riverside 92504 | (951) 788-5547 |
| Secured Protection 1772 Container Cir, Riverside 92509 | (951) 786-0815 |
| Protection One Inc 3050 Chicago Ave # 190, Riverside 92507 | (951) 782-0291 |
| Tri County 309 W La Cadena Dr, Riverside 92501 | (909) 824-0474 |
| Tektronix Inc 9125 Shaddock Cir, Riverside 92508 | (951) 789-4925 |