| Security & Risk Solutions Pte. Ltd. | Island Wide | - | OE | SS | Aljunied |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Marsiling |
| Force-One Security | North | Data Centre | SS | SS | Marsiling |
| Crowne Plaza Changi Airport | East | In-House | OM | SS | Marsiling |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Elid Technology International Pte Ltd | West | Condominium | SS | SS | Marsiling |
| Force-One Security | North | Data Centre | SO | SS | Marsiling |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Marsiling |
| RAS Security Pte Ltd | East | Commercial | SS | SS | Marsiling |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SS | SS | Marsiling |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Focus Security Services Pte Ltd | West | Condominium | SS | SS | - |
| Focus Security Services Pte Ltd | West | Condominium | SS | SS | - |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | - |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | - |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | - |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | - |
| Force-One Security | North | Data Centre | SS | SS | Hougang |
| Inhouse Employer | North | Commercial | SO | SS | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
