| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| Inhouse Employer | North | In-House | SO | SO | Yishun |
| Sands Global Pte Ltd | North | Condominium | SO | SS | Woodlands South |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SO | Yishun |
| Inhouse Employer | North | In-House | SO | SO | - |
| Inhouse Employer | North | In-House | SO | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | Commercial | SO | SSO | Bishan |
| G4S Secure Solutions (Singapore) Pte Ltd | West | School | SO | SO | Tampines West |
| Royal Security Management Services Pte Ltd | West | Construction | SO | SO | Choa Chu Kang |
| SMS Security | Central | Industrial / Factory | SO | SSO | Tanjong Pagar |
| Certis Group | Central | Commercial | SO | SO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Certis Group | Central | Commercial | SO | SO | Bukit Batok |
| Ranger Investigation & Security Services Pte Ltd | West | Construction | SO | SO | Bukit Batok |
| PICO Guards Pte Ltd | North | Data Centre | SO | SSO | Ang Mo Kio |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Prosec Services Pte Ltd | Central | Commercial | SO | SO | Bukit Batok |
| Premier Security Co-operative Ltd | South | Commercial | SO | SO | Bukit Batok |
| TwinRock Global | Central | - | SO | SO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Force-One Security | Central | Commercial | SO | SO | Bukit Batok |
| Force-One Security | Central | Commercial | SO | SO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Force-One Security | Central | Commercial | SO | SO | Bukit Batok |
