| Artyzen Singapore | Central | Hotel | SS | SSS | Redhill |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Pioneer |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSS | Toa Payoh |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | OM | CSO | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Marsiling |
| Eagle I Security Services Pte Ltd | East | Commercial | SO | SO | Pasir Ris |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Woodlands |
| Union Security Services Pte. Ltd. | North | - | SSO | CSO | Bedok |
| Inhouse Employer | West | In-House | OM | CSO | Bedok Reservoir |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SS | SS | Choa Chu Kang |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Clementi |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SO | - |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SO | Bukit Batok |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Premier Security Co-operative Ltd | North | School | SSS | CSO | Toa Payoh |
| William Secure Solutions Pte Ltd | Central | Condominium | SO | SSO | - |
| Inhouse Employer | Central | Country Club | OM | SS | Sembawang |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Pioneer |
| Acestes Pte Ltd | Island Wide | - | OM | Nil | Ang Mo Kio |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
