| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Yishun |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Acestes Pte Ltd | Central | - | Security Mgt | SO | Yishun |
| Acestes Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Yishun |
| SATS Ltd | East | - | OE | SO | Yishun |
| Inhouse Employer | South | School | SO | SO | Yishun |
| Inhouse Employer | East | Country Club | SO | SO | Yishun |
| RAS Security Pte Ltd | Island Wide | Commercial | SSO | SS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Yishun |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| RAS Security Pte Ltd | North | Commercial | SSO | SSS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Yishun |
| Certis Group | Island Wide | - | SO | SO | Yishun |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Yishun |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Yishun |
| SATS Ltd | Island Wide | - | OM | SS | Yishun |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Yishun |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| Certis Group | Island Wide | Commercial | SO | SO | Yishun |
| SATS Ltd | Island Wide | - | Inves | Nil | Yishun |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Yishun |
