| Ademco Security Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Inhouse Employer | West | Industrial / Factory | SO | SO | - |
| Artyzen Singapore | Central | Hotel | SO | SO | - |
| Hilton Garden Inn Singapore Serangoon | Central | In-House | SO | SO | - |
| Inhouse Employer | West | School | SO | SO | - |
| SEOMEO RELC | Central | In-House | SO | SO | - |
| Inhouse Employer | Central | In-House | SO | SO | - |
| Inhouse Employer | North | In-House | SO | SO | - |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | - |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Construction | SO | SO | - |
| Securitas Guarding Services (Singapore) Pte Ltd | West | Commercial | SSO | SSO | - |
| Republic of Singapore Yacht Club | West | In-House | SO | CSO | - |
| Royal Security Management Services Pte Ltd | West | Dormitory | SO | SO | - |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | - |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SS | - |
| Ranger Investigation & Security Services Pte Ltd | Island Wide | In-House | OE | SS | - |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | - |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | - |
| Certis Group | Central | Commercial | SO | SSO | - |
| Inhouse Employer | North | In-House | SO | SO | - |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | - |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SO | - |
| Premier Security Co-operative Ltd | East | Commercial | SS | SO | - |
| IGC Security Services Pte Ltd | Central | Condominium | SS | SO | - |
