| York Hotel (Private) Limited | Central | In-House | OM | SSS | Potong Pasir |
| York Hotel (Private) Limited | Central | In-House | OM | Nil | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SS | - |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| York Hotel (Private) Limited | Central | In-House | OM | SSO | Marsiling |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Dover |
| York Hotel (Private) Limited | Central | In-House | SO | SO | - |
| York Hotel (Private) Limited | Central | In-House | OM | SS | - |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | SO | SO | Bedok |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Jurong East |
| York Hotel (Private) Limited | Central | In-House | OM | SO | Bukit Batok |
| York Hotel (Private) Limited | Central | In-House | SO | SO | Bedok |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Pioneer |
| York Hotel (Private) Limited | Central | In-House | OM | CSO | Marsiling |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Choa Chu Kang |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Redhill |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bishan |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Choa Chu Kang |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| William Secure Solutions Pte Ltd | West | Condominium | SO | SSO | Woodlands |
| William Secure Solutions Pte Ltd | East | Healthcare | SO | SO | Hougang |
| William Secure Solutions Pte Ltd | East | Condominium | SSO | SSO | Bukit Batok |
