| Inhouse Employer | East | School | SO | SSO | - |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| Certis Group | Central | Commercial | SO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | SO | SSO | Jurong East |
| E2E Global Services Pte Ltd | East | Commercial | SO | SSO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SO | SSO | Jurong East |
| Inhouse Employer | Central | Hotel | SO | SSO | Jurong East |
| Inhouse Employer | Central | Hotel | SO | SSO | Jurong East |
| GoMobile Security Solutions Pte Ltd | North | Industrial / Factory | SO | SO | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | South | Commercial | SO | SO | Potong Pasir |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Marsiling |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Marsiling |
| AETOS Holdings Pte Ltd | West | - | SO | Nil | Ubi |
| Inhouse Employer | South | School | SO | SSO | - |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Danmax Security Management Pte Ltd | South | Condominium | SO | SO | - |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Brink's Singapore Pte Ltd | East | - | SO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SSO | Bukit Batok |
