| Inhouse Employer | Island Wide | Construction | OM | SS | Hougang |
| Soverus Pte Ltd | Island Wide | - | SS | SS | Hougang |
| Inhouse Employer | Island Wide | Construction | OM | SS | Hougang |
| Inhouse Employer | Island Wide | Construction | OM | SS | Hougang |
| Security & Risk Solutions Pte. Ltd. | East | Office Building | SS | SS | Hougang |
| Inhouse Employer | Central | In-House | SS | SS | Hougang |
| Inhouse Employer | Island Wide | Construction | OM | SS | Hougang |
| William Secure Solutions Pte Ltd | East | Healthcare | SO | SO | Hougang |
| Jasa Investigation & Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Hougang |
| TwinRock Global | East | Condominium | SO | SO | Hougang |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SO | Hougang |
| GoMobile Security Solutions Pte Ltd | North | Condominium | SO | SO | Hougang |
| GATES PCM Integrated Services Pte Ltd | East | Condominium | SO | SO | Hougang |
| Aspectus Consultancy Pte Ltd | Central | Condominium | SO | SO | Hougang |
| Union Security Services Pte. Ltd. | North | Commercial | SO | SO | Hougang |
| Inhouse Employer | Island Wide | - | OE | SS | Hougang |
| Inhouse Employer | Central | Healthcare | OE | SS | Hougang |
| Star Security Services | Island Wide | - | Security Mgt | SS | Hougang |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SS | Hougang |
| PICO Guards Pte Ltd | Central | Retail / Mall | SS | SS | Hougang |
| Premier Security Co-operative Ltd | Central | Commercial | SS | SS | Hougang |
| Bulls-Eye Security Services Pte Ltd | South | Gov Building | SO | SO | Hougang |
| SATS Ltd | Island Wide | Commercial | SO | SO | Hougang |
| Jasa Investigation & Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Hougang |
| Ranger Investigation & Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Hougang |
