| GATES PCM Integrated Services Pte Ltd | Central | Commercial | SSO | SSS | Yishun |
| Inhouse Employer | South | In-House | OE | SS | Ang Mo Kio |
| Fervour Pte Ltd | West | School | SO | Nil | Woodlands |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| William Secure Solutions Pte Ltd | East | Condominium | SO | SO | Sengkang |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSS | Bishan |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Bedok |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Marsiling |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| Jasa Investigation & Security Services Pte Ltd | Central | Healthcare | SSO | SO | Bukit Batok |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Boon Lay |
| Inhouse Employer | North | In-House | SO | SSS | Marsiling |
| Inhouse Employer | East | School | SO | SSO | - |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Buona Vista |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Pasir Ris |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Marsiling |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSO | Hougang |
| SATS Ltd | Island Wide | - | OM | SSO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SO | SO | Boon Lay |
| Force-One Security | North | Data Centre | SS | SS | Marsiling |
