| Force-One Security | North | Data Centre | SS | SSS | Redhill |
| Force-One Security | North | Data Centre | SS | SSS | Redhill |
| Force-One Security | North | Data Centre | OE | SSO | Simei |
| Force-One Security | North | Data Centre | SO | SSO | Marsiling |
| Force-One Security | North | Data Centre | OE | SSO | Simei |
| Prosegur Singapore Pte Ltd | East | Data Centre | SSO | SSO | Potong Pasir |
| Force-One Security | North | Data Centre | OE | SO | - |
| Force-One Security | North | Data Centre | OE | SSO | Sengkang |
| Force-One Security | North | Data Centre | OE | CSO | Ang Mo Kio |
| Force-One Security | North | Data Centre | SS | CSO | Ang Mo Kio |
| Securitas Guarding Services (Singapore) Pte Ltd | West | Data Centre | SSO | CSO | Boon Lay |
| Fervour Pte Ltd | North | Data Centre | SO | SO | - |
| Force-One Security | North | Data Centre | SS | SSO | Sembawang |
| Force-One Security | North | Data Centre | OE | SS | Kaki Bukit |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Jurong East |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Boon Lay |
| Certis Group | West | Depot | SS | SS | Marsiling |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Bukit Batok |
| Aspectus Consultancy Pte Ltd | North | Depot | SO | SSO | Yishun |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Tuas Link |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Tuas Link |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | Marsiling |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | - |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | - |
