| AGS Integration Pte. Ltd. | West | In-House | SS | CSO | Woodlands |
| PICO Guards Pte Ltd | Island Wide | - | OM | SO | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bishan |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Woodlands |
| Peregrine Security Pte. Ltd. | South | Hotel | SSO | SSO | Bedok North |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Pasir Ris |
| Peregrine Security Pte. Ltd. | North | Healthcare | SSO | SS | Yishun |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Woodlands South |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | CSO | Tampines |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | SSO | SSO | Boon Lay |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Buona Vista |
| Inhouse Employer | Central | In-House | SO | SSO | Boon Lay |
| Ademco Security Pte Ltd | South | Mix-Development | SSO | SSO | Bukit Batok |
| Dragnet Smartech Security Pte Ltd | Central | Commercial | SSO | SSO | - |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| GATES PCM Integrated Services Pte Ltd | Central | Gov Building | SO | SS | Pioneer |
| Excellent Security & Safety Pte Ltd | Central | Industrial / Factory | SS | SS | Hougang |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SO | Khatib |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Certis Group | West | School | SSO | SSO | Bukit Batok |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Boon Lay |
| Fervour Pte Ltd | East | School | SSO | SSO | Simei |
