| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSO | Tampines |
| Prosec Services Pte Ltd | East | Data Centre | SSO | SO | Tampines |
| GATES PCM Integrated Services Pte Ltd | East | Condominium | SO | SO | Sengkang |
| Regal Security & Fire Management Services Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Inhouse Employer | Island Wide | Construction | OM | SS | Toa Payoh |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Admiralty |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | SSS | Sembawang |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Yishun |
| Force-One Security | North | Data Centre | OE | SSO | Sengkang |
| Certis Group | East | In-House | SO | SO | Sengkang |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| SATS Ltd | East | - | OE | SS | Hougang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Dover |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| York Hotel (Private) Limited | Central | In-House | OM | SS | - |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Tampines |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Pasir Ris |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SSO | Boon Lay |
| Securus Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| SMS Security | Central | Industrial / Factory | SO | SSO | Tanjong Pagar |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SSO | Bukit Batok |
| Inhouse Employer | North | In-House | SO | SSO | Woodlands |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | Nil | Dover |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | CSO | Toa Payoh |
