| Reachfield Security & Safety Management Pte Ltd | North | School | SSS | SS | Woodlands |
| Security Masters Pte Ltd | North | Commercial | CSO | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | School | SSS | SS | Woodlands |
| 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 |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | SS | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | School | SSS | SS | Woodlands |
| SATS Ltd | Island Wide | - | OM | SS | Yishun |
| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SS | Hougang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OE | SS | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sengkang |
| 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 |
| Certis Group | Island Wide | - | SSO | SS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sengkang |
| SMS Security | East | Mix-Development | SSO | SS | Simei |
| Certis Group | East | - | SO | SS | Simei |
| Certis Group | East | Gov Building | SO | SS | Simei |
| Premier Security Co-operative Ltd | Island Wide | - | SS | SS | Bukit Panjang |
