| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SSO | Tampines |
| Force-One Security | Central | Commercial | SO | SSO | Tampines |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SSO | SSO | Tampines |
| AGS Integration Pte. Ltd. | Central | Commercial | SSO | SSO | Tampines |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SSO | SSO | Tampines |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Tampines |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSO | Tampines |
| Horus I (Private Limited) | Central | Retail | SO | SO | Tampines |
| Force-One Security | North | Data Centre | SS | SO | Tampines East |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SS | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Crowne Plaza Changi Airport | East | In-House | OE | SS | Tampines East |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Tampines East |
| 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 |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Condominium | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Tampines East |
| SATS Ltd | Island Wide | - | OM | Nil | Tampines East |
