| Pan Pacific Singapore | South | In-House | Security Mgt | Nil | Yishun |
| Acestes Pte Ltd | Central | - | Security Mgt | Nil | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | Nil | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | Nil | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | Nil | Yishun |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SO | Yishun |
| Inhouse Employer | North | Industrial / Factory | SSO | CSO | Yishun |
| Pan Pacific Singapore | South | In-House | Security Mgt | Nil | Yishun |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | CSO | Yishun |
| Force-One Security | North | Data Centre | OE | CSO | Yishun |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SO | Yishun |
| Premier Security Co-operative Ltd | North | Commercial | SSO | SS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SS | SS | Yishun |
| SMS Investigation & Security Pte Ltd | South | Commercial | SS | SS | Yishun |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Yishun |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Yishun |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Yishun |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Yishun |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Yishun |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Yishun |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Yishun |
| Security Masters Pte Ltd | Central | Data Centre | SS | SS | Yishun |
| RAS Security Pte Ltd | East | Commercial | SS | SS | Yishun |
| William Secure Solutions Pte Ltd | South | Commercial | SS | SS | Yishun |
| Force-One Security | North | Data Centre | SS | SS | Yishun |
