| Triple ‘S’ Protection Pte Ltd | Island Wide | Commercial | SO | SSS | Bukit Batok |
| PICO Guards Pte Ltd | Central | Commercial | SSS | SSS | Bukit Batok |
| PICO Guards Pte Ltd | South | Commercial | SSS | SSS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Panjang |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Panjang |
| PICO Guards Pte Ltd | East | Commercial | SO | SO | Hougang |
| Certis Group | Central | Commercial | SO | CSO | Bedok |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| Securus Pte Ltd | Island Wide | Commercial | OE | SS | Admiralty |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | CSO | Bedok |
| Certis Group | Central | Commercial | SO | CSO | Bedok |
| PICO Guards Pte Ltd | Central | Commercial | SSS | CSO | Bedok |
| Certis Group | Central | Commercial | SO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Bedok |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Bedok |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Hougang |
| Prosegur Singapore Pte Ltd | South | Commercial | SSS | SSS | Queenstown |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| PICO Guards Pte Ltd | Central | Commercial | SSS | CSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | CSO | Bedok |
