| Aigle Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | 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 |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | CSO | Bedok |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Aigle Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SO | Bedok |
| Triple ‘S’ Protection Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SS | Bedok |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Bedok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| TwinRock Global | Central | - | OE | CSO | Bedok |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Bedok |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SO | Bedok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bedok |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Bedok |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Bedok |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bedok |
| Inhouse Employer | Central | In-House | SSS | SSS | Bedok |
