| Business | Phone |
| Aamsec Orange 92865 | (714) 279-0040 |
| American Security Alarms Inc 265 S Anita Dr, Orange 92868 | (714) 456-0048 |
| First Pro Security Inc 438 E Katella Ave # 230, Orange 92867 | (714) 639-0288 |
| Galaxy Digital Surveillance Orange 92867 | (714) 532-3123 |
| I T Systems 6243 E Mabury Ave, Orange 92867 | (714) 921-8500 |
| Scn Security Comm Network Orange 92867 | (714) 771-5995 |