| AETOS Holdings Pte Ltd | West | Commercial | SSO | SS | Marsiling |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SO | Bukit Batok |
| Republic of Singapore Yacht Club | West | In-House | SO | SO | - |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Bukit Panjang |
| Ademco Security Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Inhouse Employer | West | Industrial / Factory | SO | SO | - |
| Inhouse Employer | West | School | SO | SO | - |
| AETOS Holdings Pte Ltd | West | Commercial | SSO | SS | Marsiling |
| Securitas Guarding Services (Singapore) Pte Ltd | West | Data Centre | SSO | CSO | Boon Lay |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | - |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | SSS | Tampines West |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SS | SO | Tampines East |
| Ademco Security Pte Ltd | West | Mix-Development | SO | SO | Choa Chu Kang |
| Inhouse Employer | West | Commercial | SO | SS | Bukit Panjang |
| Inhouse Employer | West | School | SO | SO | Bukit Panjang |
| ADT Integrated Security Solutions Pte. Ltd. | West | Commercial | SSO | SS | Punggol |
| Strive Security Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SO | SO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SO | SO | Boon Lay |
| TwinRock Global | West | Industrial / Factory | SO | SO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Construction | SO | SO | - |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Marsiling |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Marsiling |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SSS | Jurong East |
