| ADT Integrated Security Solutions Pte. Ltd. | West | Commercial | SSO | SSO | Bukit Batok |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Sengkang |
| Titanium Safety & Security Pte Ltd | North | Dormitory | SO | SSO | Sengkang |
| Inhouse Employer | Central | In-House | SO | SSS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | West | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSO | SS | Yishun |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SS | SS | Yishun |
| Pan Pacific Singapore | South | In-House | Security Mgt | SS | Woodlands |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Punggol |
| RAS Security Pte Ltd | North | Commercial | SSO | CSO | Yishun |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Toa Payoh |
| Inhouse Employer | Central | Country Club | OM | SS | Sembawang |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Punggol |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Sengkang |
| Star Security Services | Island Wide | - | OE | Nil | Dover |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Hougang |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OE | SS | Sengkang |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| Certis Group | Central | School | SO | Nil | Jurong East |
