| Securus Pte Ltd | Island Wide | - | OE | SS | Tampines East |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | SS | Tampines East |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Tampines East |
| Eagle I Security Services Pte Ltd | East | Commercial | SS | SS | Punggol |
| SMS Investigation & Security Pte Ltd | South | Commercial | SS | SS | Punggol |
| SMS Security | East | Mix-Development | SSO | SS | Aljunied |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Bedok North |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Pasir Ris |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SS | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | SS | Admiralty |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SS | SS | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SS | SS | Bukit Panjang |
| SMS Investigation & Security Pte Ltd | South | Commercial | SS | SS | Bukit Panjang |
| SMS Investigation & Security Pte Ltd | South | Commercial | SS | SS | Bukit Panjang |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Bukit Panjang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Bukit Panjang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SS | Bukit Panjang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Bukit Panjang |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Bukit Panjang |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
