| 561612 |
Security patrol services |
| 561613 |
Armored car services |
| 561621 |
Alarm system monitoring services |
| 561621 |
Alarm systems sales combined with installation, repair, or monitoring services |
| 561621 |
Burglar alarm monitoring services |
| 561621 |
Burglar alarm sales combined with installation, repair, or monitoring services |
| 561621 |
Fire alarm monitoring services |
| 561621 |
Fire alarm sales combined with installation, repair, or monitoring services |
| 561621 |
Security alarm systems sales combined with installation, repair, or monitoring services |
| 561621 |
Security system monitoring services |