| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| Artyzen Singapore | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | In-House | SS | SS | HarbourFront |
| Resorts World Sentosa | South | Commercial | SS | SS | HarbourFront |
| Sands Global Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | Bright Hill |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| William Secure Solutions Pte Ltd | West | Condominium | SS | SO | - |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | - |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SO | - |
| Securus Pte Ltd | Central | Condominium | SS | SO | Bright Hill |
| Sands Global Pte Ltd | Central | Condominium | SS | SS | Khatib |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSS | Lakeside |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| First Security & Private Investigation (Singapore) Pte Ltd | Central | Hotel | SS | SS | Aljunied |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Force-One Security | North | Data Centre | SS | CSO | Ang Mo Kio |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Sengkang |
| Security & Risk Solutions Pte. Ltd. | South | Office Building | SS | CSO | Boon Lay |
