| Inhouse Employer | Central | In-House | SS | SS | Hougang |
| Royal Security Management Services Pte Ltd | East | Commercial | SO | SS | Toa Payoh |
| Inhouse Employer | Central | Country Club | OM | SS | Sengkang |
| Peregrine Security Pte. Ltd. | North | Healthcare | SSO | SS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SS | Yishun |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Securus Pte Ltd | Island Wide | Commercial | OE | SS | Marsiling |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | SS | SS | Marsiling |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Buangkok |
| Inhouse Employer | Island Wide | Construction | OM | SS | Sengkang |
| Inhouse Employer | Central | In-House | SS | SS | Hougang |
| Security & Risk Solutions Pte. Ltd. | East | Office Building | SS | SS | Hougang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Woodlands |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SS | Pioneer |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Pioneer |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Pioneer |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Pioneer |
| Titanium Safety & Security Pte Ltd | West | Dormitory | SSO | SS | Woodlands |
| Peregrine Security Pte. Ltd. | North | Industrial / Factory | SSO | SS | Woodlands |
| PICO Guards Pte Ltd | North | Industrial / Factory | SSO | SS | Woodlands |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Woodlands |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Woodlands |
| SATS Ltd | Island Wide | Commercial | SO | SS | Woodlands |
| Inhouse Employer | Central | In-House | SO | SS | Woodlands |
