| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Soverus Pte Ltd | East | School | SO | SO | Yishun |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | Bright Hill |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| PICO Guards Pte Ltd | Island Wide | - | OE | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| Force-One Security | North | Data Centre | OE | SO | - |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| William Secure Solutions Pte Ltd | West | Condominium | SS | SO | - |
| Inhouse Employer | Island Wide | - | OE | SO | - |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | - |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SO | - |
| TwinRock Global | Central | - | Security Mgt | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| TwinRock Global | Central | - | OE | SO | - |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SO | - |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SO | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Yishun |
| Inhouse Employer | North | Industrial / Factory | SSO | SO | Ang Mo Kio |
| Securus Pte Ltd | Central | Condominium | SS | SO | Bright Hill |
