| Soverus Pte Ltd | Central | Commercial | SSS | SO | Choa Chu Kang |
| Soverus Pte Ltd | Island Wide | - | SSS | SO | Choa Chu Kang |
| Inhouse Employer | North | Commercial | SO | SS | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SO | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Choa Chu Kang |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SS | SS | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SO | Choa Chu Kang |
| Force-One Security | North | Data Centre | OE | SO | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SO | Choa Chu Kang |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSS | Choa Chu Kang |
| Guthrie FMC Security Pte Ltd | West | Dormitory | SO | SSO | Choa Chu Kang |
| Elid Technology International Pte Ltd | West | Condominium | SO | SSO | Choa Chu Kang |
| First Security & Private Investigation (Singapore) Pte Ltd | West | Condominium | SSO | SSO | Choa Chu Kang |
