| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Ademco Security Pte Ltd | West | Industrial / Factory | SSO | SSO | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SSO | SSO | Bukit Batok |
| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Bukit Batok |
| SMS Investigation & Security Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| GoMobile Security Solutions Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | SO | Yishun |
| ESA Security Pte Ltd | West | Industrial / Factory | SSO | SSO | Jurong East |
| William Secure Solutions Pte Ltd | West | Industrial / Factory | SSO | SO | Boon Lay |
| Ademco Security Pte Ltd | West | Industrial / Factory | SSO | SO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | West | School | SSO | SO | Boon Lay |
| Jasa Investigation & Security Services Pte Ltd | West | Industrial / Factory | SSO | SO | Boon Lay |
| PICO Guards Pte Ltd | West | Industrial / Factory | SSO | SO | Boon Lay |
| Inhouse Employer | West | In-House | OM | SSS | Sengkang |
| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Marsiling |
| Inhouse Employer | West | In-House | OM | SSS | Sengkang |
| Inhouse Employer | West | In-House | OM | CSO | Toa Payoh |
| Inhouse Employer | West | In-House | OM | SSO | Boon Lay |
| Inhouse Employer | West | School | OE | SO | Woodlands |
| AGS Integration Pte. Ltd. | West | Condominium | SSO | SSO | Bukit Batok |
| Inhouse Employer | West | In-House | OM | CSO | Toa Payoh |
