| Kingston Property Maintenance Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| GATES PCM Integrated Services Pte Ltd | Island IWde | - | OE | SS | Buangkok |
| Total Protection Solutions Pte Ltd | North | - | SSO | SO | Bukit Batok |
| Premier Security Co-operative Ltd | Central | Data Centre | SO | SSS | Ang Mo Kio |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SO | Woodlands |
| Peregrine Security Pte. Ltd. | South | Office Building | SS | SSS | Ang Mo Kio |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | Central | Commercial | SSO | SSS | Yishun |
| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Inhouse Employer | Central | Mix-Development | OE | CSO | Bedok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SO | Yishun |
| SATS Ltd | East | - | OE | CSO | Marsiling |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SO | Sengkang |
| TwinRock Global | Central | - | Security Mgt | SS | Hougang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Bedok |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Inhouse Employer | South | In-House | SO | SSO | - |
| Serangoon Gardens Country Club | Central | Country Club | SO | SO | Bedok |
