| Inhouse Employer | Central | Hotel | SS | SSS | Marsiling |
| Chang & Chang Security Management Pte. Ltd. | West | Condominium | SO | SO | Choa Chu Kang |
| Inhouse Employer | Central | In-House | SO | SO | Bedok |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| Inhouse Employer | Central | Country Club | OM | CSO | Bukit Batok |
| Prospect Protection Pte Ltd | West | Industrial / Factory | SSO | SS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Marsiling |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Tampines East |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Hougang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Punggol |
| Inhouse Employer | North | Commercial | SO | SS | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Star Security Services | Island Wide | - | OE | SSS | Tampines |
| RAS Security Pte Ltd | North | Commercial | SSO | SSS | Yishun |
| Inhouse Employer | Central | Hotel | OM | SO | Hougang |
| M Social Singapore | Central | Hotel | OE | SSO | Jurong East |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Choa Chu Kang |
| SMS Investigation & Security Pte Ltd | South | Commercial | SS | SS | Aljunied |
| Soverus Pte Ltd | South | In-House | SSO | SO | Bukit Batok |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Sengkang |
| Inhouse Employer | Central | Country Club | OM | CSO | Bukit Batok |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
