| Eagle I Security Services Pte Ltd | Island Wide | - | SS | SS | Sengkang |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Sengkang |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | SS | SS | Sengkang |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Sengkang |
| Inhouse Employer | West | School | OE | SS | Jurong East |
| SATS Ltd | Island Wide | - | OM | SS | Tampines |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | SS | Lakeside |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SS | SS | Lakeside |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Jurong East |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Hougang |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Hougang |
| Triple ‘S’ Protection Pte Ltd | East | Commercial | SS | SS | Hougang |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Hougang |
| Soverus Pte Ltd | South | Commercial | SS | SS | Hougang |
| Certis Group | South | Healthcare | SS | SS | Hougang |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SS | Hougang |
| Securus Pte Ltd | Island Wide | - | OM | SS | Hougang |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Hougang |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Hougang |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Hougang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Hougang |
| SATS Ltd | East | - | OE | SS | Hougang |
| TwinRock Global | Central | - | OE | SS | Hougang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Hougang |
