| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SO | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | Commercial | SO | SO | Woodlands |
| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SSS | Woodlands |
| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SSS | Woodlands |
| Inhouse Employer | Central | In-House | SO | SSS | Woodlands |
| Security Masters Pte Ltd | Island Wide | - | SS | SSS | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSS | Woodlands |
| Securus Pte Ltd | North | Commercial | SO | SSO | Woodlands |
| Inhouse Employer | West | Industrial / Factory | SO | SSS | Woodlands |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SSO | Woodlands |
| Metropolis Security Systems Pte Ltd | South | Commercial | SSS | SSS | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SSO | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SO | SSO | Woodlands |
| GWC Commercial Pte. Ltd. | Central | Commercial | SO | SSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Woodlands |
| Apro Asian Protection Pte Ltd | Central | Commercial | SSO | SSO | Woodlands |
| Force-One Security | North | Data Centre | SS | SS | Woodlands |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Woodlands |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Woodlands |
