| Group Security Service Pte Ltd | East | Condominium | SO | SO | Simei |
| Unique Security Services Pte Ltd | East | Condominium | SO | SO | Simei |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| Sands Global Pte Ltd | East | Condominium | SO | SO | Simei |
| Kingston Property Maintenance Services Pte Ltd | East | Condominium | SO | SO | Simei |
| William Secure Solutions Pte Ltd | East | Condominium | SO | SO | Simei |
| Sands Global Pte Ltd | East | Condominium | SO | SO | Simei |
| Prosec Services Pte Ltd | East | Data Centre | SSS | CSO | Pasir Ris |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Bras Basah |
| Eagle I Security Services Pte Ltd | East | Commercial | SO | SO | Bras Basah |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| RAS Security Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| Crowne Plaza Changi Airport | East | In-House | OE | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SS | Bukit Batok |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Bedok |
| PICO Guards Pte Ltd | East | Industrial / Factory | SO | SS | Punggol |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSO | Hougang |
| Eagle I Security Services Pte Ltd | East | Condominium | SSO | SO | Pasir Ris |
| Danmax Security Management Pte Ltd | East | Industrial / Factory | SSO | SO | Tampines |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Bedok |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
