| York Hotel (Private) Limited | Central | In-House | OM | CSO | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Marsiling |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | CSO | Marsiling |
| Inhouse Employer | Central | In-House | SSS | CSO | Marsiling |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Toa Payoh |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SS | Clementi |
| TwinRock Global | Central | - | Security Mgt | SS | Clementi |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Toa Payoh |
| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | SS | Woodlands |
| Inhouse Employer | Central | Hotel | SS | SS | Woodlands |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Woodlands |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Toa Payoh |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Toa Payoh |
| Inhouse Employer | Central | Hotel | OE | SSO | Boon Lay |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Boon Lay |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | SSO | Boon Lay |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Boon Lay |
| Inhouse Employer | Central | Hotel | OE | SSO | Boon Lay |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OE | SSO | Boon Lay |
| PICO Guards Pte Ltd | Central | Commercial | SSS | CSO | Toa Payoh |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Toa Payoh |
| Security & Risk Solutions Pte. Ltd. | Central | In-House | RSOC/CAMS Op | SSO | Sengkang |
| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SS | Hougang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Queenstown |
