| Securus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| SECOM Singapore Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Kingston Property Maintenance Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | SSS | CSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | CSO | Marsiling |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Marsiling |
| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Inhouse Employer | Island Wide | - | OE | CSO | Marsiling |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Inhouse Employer | West | Industrial / Factory | SO | SSS | Marsiling |
| Inhouse Employer | West | Industrial / Factory | SO | SSS | Marsiling |
