| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Pasir Ris |
| Inhouse Employer | East | Hotel | Security Mgt | SS | Punggol |
| Metropolis Security Systems Pte Ltd | East | Condominium | SSO | SSO | Bedok North |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Ang Mo Kio |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SO | SO | Sengkang |
| Force-One Security | North | Data Centre | SS | SSO | Tampines |
| Acestes Pte Ltd | Central | - | Security Mgt | Nil | Yishun |
| Force-One Security | North | Data Centre | OE | SSS | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | East | Condominium | SS | SS | Punggol |
| PICO Guards Pte Ltd | North | School | SO | SO | Yishun |
| TwinRock Global | West | Condominium | SSO | SSO | Woodlands |
| SATS Ltd | Island Wide | - | Inves | SO | Admiralty |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | OE | SS | MacPherson |
| Crowne Plaza Changi Airport | East | Hotel | SSO | SS | Tampines |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SSO | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Jurong East |
| Inhouse Employer | East | School | SO | SSS | MacPherson |
| Inhouse Employer | North | Industrial / Factory | SSO | SSO | Marsiling |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Excellent Security & Safety Pte Ltd | Central | Industrial / Factory | SSO | SSO | Toa Payoh |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSO | Hougang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Bukit Panjang |
