| Inhouse Employer | Central | Hotel | SO | SSO | Jurong East |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Woodlands |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Woodlands |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bedok |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SS | SS | Jurong East |
| Security & Risk Solutions Pte. Ltd. | Central | In-House | RSOC/CAMS Op | SS | Jurong East |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSO | Simei |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Tampines |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| Bulls-Eye Security Services Pte Ltd | Central | Commercial | SS | SS | Woodlands |
| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | CSO | Choa Chu Kang |
| Inhouse Employer | Central | Hotel | SS | SS | Marsiling |
| Acestes Pte Ltd | Central | - | Security Mgt | SS | Sengkang |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Hougang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Hougang |
| TwinRock Global | Central | - | Security Mgt | SS | Hougang |
| Inhouse Employer | Central | Hotel | SS | SS | Hougang |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SS | Hougang |
| Soverus Pte Ltd | Central | Data Centre | SSO | SS | Hougang |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Tampines East |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| Certis Group | Central | Commercial | SO | SSO | Bukit Batok |
