| Artyzen Singapore | Central | Hotel | SS | CSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | SO | Yishun |
| Metropolis Security Systems Pte Ltd | Island Wide | Mix-Development | SS | SS | Woodlands |
| Ranger Investigation & Security Services Pte Ltd | Island Wide | In-House | SS | SS | Woodlands |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Farrer Park |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Woodlands |
| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | SS | Woodlands |
| Ascentiaa Security Management Pte Ltd | Island Wide | Condominium | SS | SS | Woodlands |
| Inhouse Employer | Central | Hotel | SS | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | SS | SS | Woodlands |
| Force-One Security | North | Data Centre | SS | SSO | Simei |
| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SS | Hougang |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Sengkang |
| Artyzen Singapore | Central | Hotel | SS | SS | Sengkang |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Sengkang |
| Premier Security Co-operative Ltd | Island Wide | - | SS | SS | Bukit Panjang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSO | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Bukit Batok |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Bedok |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Bukit Batok |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Bukit Batok |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SO | Pasir Ris |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SO | Pasir Ris |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSO | Boon Lay |
| Ranger Investigation & Security Services Pte Ltd | Island Wide | In-House | SS | SSO | Boon Lay |
