| Young Women's Christian Association of Singapore | Central | In-House | SS | SSS | Marsiling |
| Young Women's Christian Association of Singapore | Central | In-House | SS | SSS | Marsiling |
| Certis Group | East | In-House | SO | SO | Pasir Ris |
| Pan Pacific Singapore | South | In-House | Security Mgt | Nil | Yishun |
| Inhouse Employer | South | In-House | OE | SS | Dover |
| Certis Group | East | In-House | SO | SO | Sengkang |
| Inhouse Employer | Central | In-House | SO | SSS | Potong Pasir |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSS | Potong Pasir |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Potong Pasir |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Potong Pasir |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Potong Pasir |
| York Hotel (Private) Limited | Central | In-House | OM | Nil | Yishun |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | CSO | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | Nil | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SO | - |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Potong Pasir |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SO | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Potong Pasir |
| Inhouse Employer | Central | In-House | SSS | CSO | Woodlands |
| Crowne Plaza Changi Airport | East | In-House | OE | CSO | Marsiling |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Tampines |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Woodlands |
