| RAS Security Pte Ltd | North | Commercial | OE | SSO | Marsiling |
| Force-One Security | North | Data Centre | OE | SSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSO | Sengkang |
| SATS Ltd | Island Wide | - | OM | SSO | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Aspectus Consultancy Pte Ltd | North | Industrial / Factory | SO | SSO | Yishun |
| Premier Security Co-operative Ltd | North | Commercial | SO | SSO | Yishun |
| Pan Pacific Serviced Suites Beach Road | South | In-House | SO | SSO | Khatib |
| Pan Pacific Serviced Suites Beach Road | South | In-House | SO | SSO | Khatib |
| Amara Singapore | South | In-House | SSO | SSO | Khatib |
| SEOMEO RELC | Central | In-House | SO | SSO | Khatib |
| Inhouse Employer | Central | In-House | SO | SSO | Khatib |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSO | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Focus Security Services Pte Ltd | Central | Retail | SSO | SSO | Tampines |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SSO | Tampines |
| Force-One Security | Central | Commercial | SO | SSO | Tampines |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SSO | SSO | Tampines |
| AGS Integration Pte. Ltd. | Central | Commercial | SSO | SSO | Tampines |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SSO | SSO | Tampines |
| Inhouse Employer | North | In-House | SO | SSO | Woodlands |
| Certis Group | Island Wide | - | SSO | SSO | Woodlands |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | East | Dormitory | SO | SSO | Woodlands |
