| AETOS Holdings Pte Ltd | West | - | SO | SO | Marsiling |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| SATS Ltd | East | - | OE | SO | Woodlands |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Storm Protection Pte Ltd | East | Condominium | SS | SO | Tampines |
| Danmax Security Management Pte Ltd | South | Condominium | SO | SO | - |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Artyzen Singapore | Central | Hotel | SS | SO | Yishun |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Retail | SO | SO | - |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SO | Pasir Ris |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Royal Security Management Services Pte Ltd | East | Commercial | SO | SO | Tampines |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Punggol |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Tampines |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Punggol |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SO | SO | Tampines |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| TwinRock Global | East | Retail | SO | SO | Tampines |
| Aigle Security Pte Ltd | East | Condominium | SO | SO | Tampines |
| William Secure Solutions Pte Ltd | East | Condominium | SS | SO | Tampines |
| Eagle I Security Services Pte Ltd | East | Commercial | SS | SO | Tampines |
