| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Fervour Pte Ltd | Central | Data Centre | SO | SO | Potong Pasir |
| Concorde Security Pte Ltd | East | Commercial | SO | SO | Punggol |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| Security & Risk Solutions Pte. Ltd. | Central | Commercial | SO | SO | Potong Pasir |
| Jasa Investigation & Security Services Pte Ltd | East | Healthcare | SO | SO | Pasir Ris |
| Aigle Security Pte Ltd | East | Commercial | SO | SO | Pasir Ris |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Eagle I Security Services Pte Ltd | East | - | SO | SO | Pasir Ris |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SO | Serangoon |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SO | Serangoon |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Sands Global Pte Ltd | East | Condominium | SO | SO | Pasir Ris |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Punggol |
| Inhouse Employer | East | In-House | SO | SO | Simei |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Simei |
