| Inhouse Employer | North | In-House | SO | SO | Woodlands |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Choa Chu Kang |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Bukit Batok |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| SATS Ltd | Island Wide | - | OM | SS | Pioneer |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Sengkang |
| SATS Ltd | East | - | OE | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Admiralty |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | Nil | Dover |
| Inhouse Employer | North | Industrial / Factory | SSO | SS | Yishun |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Pioneer |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSO | Boon Lay |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | Nil | Pioneer |
| Focus Security Services Pte Ltd | West | Condominium | SS | SO | Bright Hill |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Tiong Bahru |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Premier Security Co-operative Ltd | North | School | SSS | CSO | Woodlands |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSS | Potong Pasir |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | SS | Ang Mo Kio |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sengkang |
| Premier Security Co-operative Ltd | North | Commercial | SO | SO | Yishun |
| Metropolis Security Systems Pte Ltd | East | Condominium | SSO | SS | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSS | Pasir Ris |
