| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Boon Lay |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Boon Lay |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Boon Lay |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Boon Lay |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Boon Lay |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Woodlands |
| William Secure Solutions Pte Ltd | East | Condominium | SSS | CSO | Woodlands |
| William Secure Solutions Pte Ltd | East | Condominium | SSS | CSO | Woodlands |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | CSO | Woodlands |
| AGS Integration Pte. Ltd. | West | In-House | SS | CSO | Woodlands |
| RAS Security Pte Ltd | North | Commercial | OE | CSO | Woodlands |
| Premier Security Co-operative Ltd | North | School | SSS | CSO | Woodlands |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Woodlands |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Woodlands |
| AGS Integration Pte. Ltd. | West | In-House | SS | CSO | Woodlands |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Woodlands |
| Inhouse Employer | South | In-House | OE | CSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | CSO | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | CSO | Toa Payoh |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Toa Payoh |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | CSO | Toa Payoh |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Clementi |
