| Inhouse Employer | North | In-House | SO | SO | - |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SO | SO | - |
| Titanium Safety & Security Pte Ltd | North | Dormitory | SO | SO | Punggol |
| GATES PCM Integrated Services Pte Ltd | Central | School | SO | SO | Punggol |
| Uniforce Security Services Pte Ltd | East | Commercial | SO | SO | Punggol |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Punggol |
| Titanium Safety & Security Pte Ltd | North | Dormitory | SO | SO | Punggol |
| Aigle Security Pte Ltd | Central | Commercial | SO | SO | Punggol |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Inhouse Employer | East | In-House | SO | SO | - |
| Inhouse Employer | Central | Hotel | SO | SS | Marsiling |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| GWC Commercial Pte. Ltd. | Central | Commercial | SO | SSO | - |
| Pan Pacific Serviced Suites Beach Road | South | In-House | SO | SSO | - |
| Inhouse Employer | West | In-House | SO | SSO | - |
| Inhouse Employer | Central | In-House | SO | SSO | - |
| Inhouse Employer | East | In-House | SO | SSO | - |
| York Hotel (Private) Limited | Central | In-House | SO | SSO | - |
| Mahesh | Central | In-House | SO | SS | Aljunied |
| Certis Group | Central | Commercial | SO | SSO | Bukit Batok |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Bukit Batok |
| Resorts World Sentosa | South | Commercial | SO | SSO | Bukit Batok |
| Kingston Property Maintenance Services Pte Ltd | West | Condominium | SO | SSO | Bukit Batok |
