| Artyzen Singapore | Central | Hotel | SS | SS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Queenstown |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Chinese Garden |
| Soverus Pte Ltd | Central | Commercial | SSS | SSS | Yishun |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Queenstown |
| Hotel Grand Central | Central | Hotel | Security Mgt | SO | Woodlands |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Pasir Ris |
| Certis Group | Central | School | SSO | SS | Farrer Park |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | CSO | Toa Payoh |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Toa Payoh |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Marsiling |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | CSO | Toa Payoh |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SS | Bukit Panjang |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Choa Chu Kang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Toa Payoh |
| TwinRock Global | Central | - | Security Mgt | CSO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | CSO | Pasir Ris |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Pasir Ris |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Pasir Ris |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Pasir Ris |
| Force-One Security | Central | Commercial | SO | CSO | Pasir Ris |
| York Hotel (Private) Limited | Central | In-House | OM | CSO | Pasir Ris |
| William Secure Solutions Pte Ltd | Central | Embassy | SSO | SSO | Bukit Batok |
