| Young Women's Christian Association of Singapore | Central | In-House | SS | SSS | Marsiling |
| Inhouse Employer | Central | Hotel | SS | SSS | Marsiling |
| Young Women's Christian Association of Singapore | Central | In-House | SS | SSS | Marsiling |
| Bulls-Eye Security Services Pte Ltd | North | Condominium | SS | SS | Woodlands |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Woodlands |
| Inhouse Employer | Central | Hotel | SS | SSS | Potong Pasir |
| Inhouse Employer | Central | Hotel | SS | SSS | Potong Pasir |
| Inhouse Employer | Central | Hotel | SS | SSS | Potong Pasir |
| Inhouse Employer | Central | Hotel | SS | SSS | Potong Pasir |
| Artyzen Singapore | Central | Hotel | SS | CSO | Sengkang |
| Inhouse Employer | Central | In-House | SS | SSO | Hougang |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSO | Simei |
| Premier Security Co-operative Ltd | Central | - | SS | SSO | Simei |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | SS | Admiralty |
| Prosegur Singapore Pte Ltd | South | Commercial | SS | SS | Bishan |
| Artyzen Singapore | Central | Hotel | SS | SS | Farrer Park |
| Inhouse Employer | Central | Hotel | SS | SS | Farrer Park |
| Elid Technology International Pte Ltd | West | Condominium | SS | CSO | Bukit Panjang |
| Prospect Protection Pte Ltd | West | Industrial / Factory | SS | SS | - |
| Prospect Protection Pte Ltd | West | Construction | SS | SS | - |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | - |
| Global Ritz Protection (Security Services) Pte Ltd | West | Industrial / Factory | SS | SS | - |
| Artyzen Singapore | Central | Hotel | SS | SS | Farrer Park |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SO | Eunos |
| Focus Security Services Pte Ltd | North | Condominium | SS | SSS | Yishun |
