| Force-One Security | Central | Commercial | SO | SO | Hougang |
| Inhouse Employer | North | In-House | SO | SO | Pasir Ris |
| Prosec Services Pte Ltd | East | Retail | SO | SO | Pasir Ris |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Pasir Ris |
| Royal Security Management Services Pte Ltd | East | Commercial | SO | SO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SO | SO | Pasir Ris |
| A-SAT Pte Ltd | East | Construction | SO | SO | Pasir Ris |
| Eagle I Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Pasir Ris |
| Ranger Investigation & Security Services Pte Ltd | North | Construction | SO | SO | Pasir Ris |
| Prosec Services Pte Ltd | East | Retail | SO | SO | Pasir Ris |
| Inhouse Employer | North | In-House | SO | SO | Pasir Ris |
| Inhouse Employer | South | Hotel | SO | SO | Bedok |
| RAS Security Pte Ltd | North | In-House | Office Team | SO | Bedok |
| Dorsett Singapore | Central | Hotel | SSO | SO | Bedok |
| ONE°15 Marina Sentosa Cove, Singapore | South | Country Club | SO | SO | Bedok |
| Artyzen Singapore | Central | Hotel | SO | SO | Bedok |
| Inhouse Employer | South | In-House | SSO | SO | Bedok |
| Royal Security Management Services Pte Ltd | West | Dormitory | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | School | SO | SO | Clementi |
| G4S Secure Solutions (Singapore) Pte Ltd | South | School | SO | SO | Clementi |
| Eagle I Security Services Pte Ltd | Central | Healthcare | SO | SO | Woodlands |
| Elitez Security Pte Ltd | Central | Commercial | SO | SO | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SO | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SO | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SO | Mountbatten |
