| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| Certis Group | Island Wide | - | SO | Nil | Bencoolen |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SS | Bedok Reservoir |
| Jasa Investigation & Security Services Pte Ltd | East | Condominium | SSO | SSO | Bedok Reservoir |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | SS | Bedok Reservoir |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Bedok Reservoir |
| Inhouse Employer | West | In-House | OM | CSO | Bedok Reservoir |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Bedok North |
| Triple ‘S’ Protection Pte Ltd | East | Commercial | SSO | SSO | Bedok North |
| A-SAT Pte Ltd | East | Hotel | SSO | SSO | Bedok North |
| Peregrine Security Pte. Ltd. | South | Hotel | SSO | SSO | Bedok North |
| Jasa Investigation & Security Services Pte Ltd | East | Condominium | SSO | SSO | Bedok North |
| Triple ‘S’ Protection Pte Ltd | East | Commercial | SSO | SSO | Bedok North |
| Metropolis Security Systems Pte Ltd | East | Condominium | SSO | SSO | Bedok North |
| Prosec Services Pte Ltd | East | Retail | SSO | SSO | Bedok North |
| AGS Integration Pte. Ltd. | East | Condominium | SSO | SSO | Bedok North |
| Prosec Services Pte Ltd | East | Data Centre | SSO | SSO | Bedok North |
| Acestes Pte Ltd | East | Commercial | SSO | SSO | Bedok North |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Bedok North |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Bedok North |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Bedok North |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Mix-Development | SSO | SSO | Bedok North |
| Ademco Security Pte Ltd | Island Wide | - | SSO | SSO | Bedok North |
