| Focus Security Services Pte Ltd | North | Condominium | SS | SSS | Yishun |
| Force-One Security | North | Data Centre | SS | SSS | Yishun |
| Acestes Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Securus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SO | Yishun |
| TwinRock Global | Central | - | Security Mgt | SO | Yishun |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| Force-One Security | North | Data Centre | SS | SSS | Yishun |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Yishun |
| Bulls-Eye Security Services Pte Ltd | Central | Commercial | SS | SSS | Yishun |
| Security Masters Pte Ltd | Central | Data Centre | SS | SSS | Yishun |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SSS | Yishun |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SSS | Yishun |
| Reachfield Security & Safety Management Pte Ltd | North | Industrial / Factory | SS | SSS | Yishun |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Yishun |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SS | Yishun |
| Security Masters Pte Ltd | Central | Data Centre | SS | SSS | Yishun |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SSS | Yishun |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| SATS Ltd | Island Wide | - | OM | SSS | Yishun |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
