| Soverus Pte Ltd | South | In-House | SSO | SSO | Boon Lay |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Boon Lay |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| RAS Security Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| Certis Group | Island Wide | - | SSO | SSO | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SSO | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SSO | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | Nil | Bukit Batok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SS | Geylang Bahru |
| Soverus Pte Ltd | Island Wide | - | SSO | SSO | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SSO | Choa Chu Kang |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | SS | Bedok Reservoir |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SS | Bukit Batok |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SSO | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Commonwealth |
| PICO Guards Pte Ltd | Central | School | SSO | SSO | Commonwealth |
| Eagle I Security Services Pte Ltd | East | Condominium | SSO | SO | Pasir Ris |
| Danmax Security Management Pte Ltd | East | Industrial / Factory | SSO | SO | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Bukit Batok |
