| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | CSO | Bedok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| Star Security Services | Island Wide | - | OE | CSO | Bedok |
| AGS Integration Pte. Ltd. | West | In-House | SS | CSO | Bedok |
| Securitas Guarding Services (Singapore) Pte Ltd | West | Commercial | SSO | CSO | Bedok |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Bedok |
| Legion Protection Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| SATS Ltd | Island Wide | - | Inves | CSO | Bedok |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Bedok |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| ProtectPlus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | CSO | Bedok |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| RAS Security Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Bedok |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bedok |
