| Inhouse Employer | West | Industrial / Factory | SO | SS | Woodlands |
| Force-One Security | North | Data Centre | SS | SS | Woodlands |
| Crowne Plaza Changi Airport | East | In-House | OM | SS | Woodlands |
| Pan Pacific Singapore | South | In-House | Security Mgt | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | SS | SS | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SS | Woodlands |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Woodlands |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | SS | Punggol |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Yishun |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Yishun |
| Ascentiaa Security Management Pte Ltd | East | Condominium | SSO | SS | Punggol |
| Shine Security Agency Pte Ltd | Central | Commercial | SSO | SS | Punggol |
| Mainguard Security Services (S) Pte Ltd | East | Healthcare | SSO | SS | Punggol |
| Prosegur Singapore Pte Ltd | Central | Retail / Mall | SS | SS | Bishan |
| Security & Risk Solutions Pte. Ltd. | Island Wide | - | OE | SS | Aljunied |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SS | SS | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Marsiling |
| Force-One Security | North | Data Centre | SS | SS | Marsiling |
| Crowne Plaza Changi Airport | East | In-House | OM | SS | Marsiling |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Elid Technology International Pte Ltd | West | Condominium | SS | SS | Marsiling |
| Force-One Security | North | Data Centre | SO | SS | Marsiling |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Marsiling |
| RAS Security Pte Ltd | East | Commercial | SS | SS | Marsiling |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SS | SS | Marsiling |
