| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Yishun |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Yishun |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Yishun |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Yishun |
| Security Masters Pte Ltd | Central | Data Centre | SS | SS | Yishun |
| RAS Security Pte Ltd | East | Commercial | SS | SS | Yishun |
| William Secure Solutions Pte Ltd | South | Commercial | SS | SS | Yishun |
| Force-One Security | North | Data Centre | SS | SS | Yishun |
| Soverus Pte Ltd | South | In-House | SS | SS | Woodlands South |
| Soverus Pte Ltd | South | Commercial | SS | SS | Woodlands South |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSS | Jurong East |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Jurong East |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Woodlands South |
| Soverus Pte Ltd | South | In-House | SS | SS | Woodlands South |
| Force-One Security | North | Data Centre | SS | SS | Woodlands South |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Woodlands South |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | CSO | Marsiling |
| William Secure Solutions Pte Ltd | North | Industrial / Factory | SS | SS | Woodlands South |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Boon Lay |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Boon Lay |
| Primesafe Security & Investigation Pte Ltd | South | Commercial | SS | SS | Boon Lay |
| Global Ritz Protection (Security Services) Pte Ltd | West | Industrial / Factory | SS | SS | Boon Lay |
| Eagle I Security Services Pte Ltd | Island Wide | - | SS | SS | Boon Lay |
| Force-One Security | North | Data Centre | SS | SS | Boon Lay |
| Force-One Security | North | Data Centre | SS | SS | Yishun |
