| Securitas Guarding Services (Singapore) Pte Ltd | East | Data Centre | SO | SO | Hougang |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Marsiling |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Sengkang |
| Force-One Security | North | Data Centre | OE | SSS | Woodlands |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSO | Sengkang |
| Force-One Security | North | Data Centre | OE | SSS | Woodlands |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Sengkang |
| PICO Guards Pte Ltd | North | Data Centre | SO | SSO | Ang Mo Kio |
| PICO Guards Pte Ltd | North | Data Centre | SSO | SSO | Ang Mo Kio |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | CSO | Marsiling |
| Prosec Services Pte Ltd | East | Data Centre | SSS | CSO | Marsiling |
| Soverus Pte Ltd | Central | Data Centre | SSS | SSS | Yishun |
| Securitas Guarding Services (Singapore) Pte Ltd | North | Data Centre | SSO | SSO | Woodlands |
| Prosec Services Pte Ltd | East | Data Centre | SSS | SSS | Pasir Ris |
| Security Masters Pte Ltd | Central | Data Centre | SS | SS | Hougang |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Hougang |
| Prosec Services Pte Ltd | East | Data Centre | SSS | SS | Hougang |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSO | Jurong East |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Yishun |
| Force-One Security | North | Data Centre | SS | SS | Jurong East |
| Force-One Security | North | Data Centre | SS | SS | Jurong East |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSO | Jurong East |
