| Business | Phone |
| Early Detection Security 122 N 6th St, El Centro 92243 | (760) 352-8724 |
| Jade Security Systems 380 N 8th St # 14, El Centro 92243 | (760) 337-2100 |
| A & S Svc Inc 1761 Adams Ave, El Centro 92243 | (760) 352-4371 |
| A Alarm System El Centro 92243 | (760) 337-2938 |