| Security & Risk Solutions Pte. Ltd. | South | Office Building | SS | SSS | Bishan |
| Triple ‘S’ Protection Pte Ltd | Island Wide | Commercial | SO | SSO | Bishan |
| Fervour Pte Ltd | Central | Commercial | SSO | SSO | Bishan |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bishan |
| Force-One Security | North | Data Centre | SS | SS | Bishan |
| Prosegur Singapore Pte Ltd | South | Commercial | SS | SS | Bishan |
| Prosegur Singapore Pte Ltd | Central | Retail / Mall | SS | SS | Bishan |
| Crowne Plaza Changi Airport | East | In-House | OM | SSS | Bishan |
| Inhouse Employer | West | In-House | OM | SSS | Bishan |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Bishan |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Bishan |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSS | Bishan |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSS | Bishan |
| SATS Ltd | East | - | OE | SSS | Bishan |
| Crowne Plaza Changi Airport | East | In-House | OM | SSS | Bishan |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bishan |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| M Social Singapore | Central | Hotel | OE | SSS | Bishan |
| Security Masters Pte Ltd | North | Commercial | CSO | SSS | Bishan |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SSS | Bishan |
| Inhouse Employer | Island Wide | - | OE | SSS | Bishan |
| TwinRock Global | Central | - | Security Mgt | SSS | Bishan |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSS | Bishan |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Bishan |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Bishan |
