| Chang & Chang Security Management Pte. Ltd. | Central | Condominium | SS | SO | - |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SS | SS | - |
| Dragnet Smartech Security Pte Ltd | Central | Condominium | SS | SS | - |
| Reachfield Security & Safety Management Pte Ltd | West | Industrial / Factory | SS | SS | - |
| Uniforce Security Services Pte Ltd | Central | Condominium | SS | SS | - |
| SMS Investigation & Security Pte Ltd | South | Condominium | SS | SS | - |
| Eagle I Security Services Pte Ltd | Island Wide | - | SS | SS | - |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SS | SS | - |
| Eagle I Security Services Pte Ltd | Island Wide | - | SS | SS | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Retail | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Commercial | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Retail | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Retail | SO | SO | - |
| Danmax Security Management Pte Ltd | West | Condominium | SO | SO | - |
| Reachfield Security & Safety Management Pte Ltd | North | Commercial | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Global Ritz Protection (Security Services) Pte Ltd | North | Commercial | SO | SO | - |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | - |
| Inhouse Employer | North | In-House | SO | SO | - |
| First Security & Private Investigation (Singapore) Pte Ltd | Central | Condominium | SO | SO | - |
| Inhouse Employer | East | In-House | SO | SO | - |
| Resorts World Sentosa | South | Commercial | SO | SO | - |
| Securus Pte Ltd | South | Gov Building | SO | SO | - |
