| Certis Group | Central | Commercial | SO | CSO | Bedok |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Bukit Panjang |
| A-SAT Pte Ltd | Island Wide | - | SSO | SSS | Boon Lay |
| Soverus Pte Ltd | Island Wide | - | SSS | CSO | Marsiling |
| Acestes Pte Ltd | East | Condominium | SSO | SSO | Sengkang |
| Danmax Security Management Pte Ltd | East | - | OE | CSO | Bedok |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Tampines |
| Prospect Protection Pte Ltd | West | Industrial / Factory | SSO | SSO | - |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Tampines |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSS | Bishan |
| Young Women's Christian Association of Singapore | Central | In-House | Security Mgt | SSO | Hougang |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | SSO | Simei |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Inhouse Employer | North | Industrial / Factory | SSO | SO | Sembawang |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | - |
| SMS Investigation & Security Pte Ltd | East | Condominium | SS | SS | Punggol |
| Securus Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Hawkeye Security Solutions Pte Ltd | Central | Condominium | SSO | SSO | Bukit Batok |
| RAS Security Pte Ltd | East | Commercial | SO | SO | Tampines |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Hougang |
| Inhouse Employer | East | Country Club | SO | SO | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Batok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
