| Soverus Pte Ltd | Central | Industrial / Factory | SS | CSO | Ang Mo Kio |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| SATS Ltd | Island Wide | - | OM | CSO | Sengkang |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SO | Bukit Batok |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Hougang |
| Inhouse Employer | West | In-House | OM | SO | Woodlands |
| SEOMEO RELC | Central | In-House | SO | SS | Aljunied |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SS | SS | Yishun |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | SSO | Boon Lay |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SSO | SSO | Bukit Batok |
| Elid Technology International Pte Ltd | East | Condominium | SO | SO | Mountbatten |
| Storm Protection Pte Ltd | South | Commercial | SO | SO | Admiralty |
| SATS Ltd | Island Wide | - | OM | SSS | Braddell |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SS | MacPherson |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Tampines East |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | - |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SSS | Sengkang |
| Crowne Plaza Changi Airport | East | Hotel | SSO | SSS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SO | Boon Lay |
| Inhouse Employer | Central | Healthcare | OE | SSO | Hougang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SO | - |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Panjang |
| Inhouse Employer | West | In-House | OM | SO | Sengkang |
