| Force-One Security | North | Data Centre | SS | SS | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SS | SS | Jurong East |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSO | Jurong East |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SSO | Jurong East |
| FormTeam Consultancy Pte Ltd | West | Condominium | SS | SS | Jurong East |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SS | SS | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| PICO Guards Pte Ltd | Central | School | SSO | SSO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Commercial | SS | SO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Commercial | SS | SO | Jurong East |
| ESA Security Pte Ltd | West | Industrial / Factory | SSO | SSO | Jurong East |
| Soverus Pte Ltd | Central | Commercial | SSS | SSS | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | Nil | Jurong East |
| SATS Ltd | Island Wide | - | OM | Nil | Jurong East |
| SATS Ltd | Island Wide | - | OM | SSS | Jurong East |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Jurong East |
| Acestes Pte Ltd | Island Wide | - | OM | Nil | Jurong East |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Jurong East |
| Acestes Pte Ltd | Central | - | Security Mgt | Nil | Jurong East |
| Hillcrest Security & Management Services Pte Ltd | East | Condominium | SO | SO | Jurong East |
| Resorts World Sentosa | South | Commercial | SO | Nil | Jurong East |
| Aigle Security Pte Ltd | South | Condominium | SO | Nil | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | Gov Building | SO | Nil | Jurong East |
| Ademco Security Pte Ltd | West | Industrial / Factory | SSO | SO | Jurong East |
