| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| Inhouse Employer | East | School | SO | SO | Bedok |
| ProtectPlus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| SMS Security | East | Retail / Mall | SO | SO | Eunos |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | SS | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | - |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | SSS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SSO | SSO | Marsiling |
| TwinRock Global | North | Dormitory | SO | SO | Yishun |
| ESA Security Pte Ltd | South | Hotel | SSO | SSO | Tuas Link |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SSO | Boon Lay |
| Unique Security Services Pte Ltd | East | Condominium | SO | SO | Simei |
| Inhouse Employer | North | In-House | SO | SS | Punggol |
| Force-One Security | Central | Commercial | SO | SS | Toa Payoh |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Soverus Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Kingston Property Maintenance Services Pte Ltd | East | Condominium | SO | SO | Simei |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Yishun |
| Artyzen Singapore | Central | Hotel | SO | SO | Bedok |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SO | Woodlands |
| Pedro Investigations & Security Services Pte. Ltd. | Central | Industrial / Factory | SO | SS | Sengkang |
| Inhouse Employer | West | In-House | OM | SO | Woodlands |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
