| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SO | Sembawang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Sembawang |
| ESA Security Pte Ltd | South | Hotel | SSO | SO | Sembawang |
| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Sembawang |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | Sembawang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Sembawang |
| GoMobile Security Solutions Pte Ltd | North | Industrial / Factory | SO | SSO | Sembawang |
| Inhouse Employer | West | Industrial / Factory | SO | SO | Sembawang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Sembawang |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Sembawang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SSO | Sembawang |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SSO | Sembawang |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSO | Sembawang |
| Strive Security Pte Ltd | Island Wide | - | OE | SSO | Sembawang |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSO | Sembawang |
| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Sembawang |
| Trek Investigations & Security Management Services Pte Ltd | East | Condominium | SO | SO | Sembawang |
| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Sembawang |
| SMS Investigation & Security Pte Ltd | North | Condominium | SO | SO | Sembawang |
| Acestes Pte Ltd | Central | - | Security Mgt | SS | Sembawang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sembawang |
| Inhouse Employer | Island Wide | - | OE | SS | Sembawang |
| Inhouse Employer | North | Commercial | SO | SS | Sembawang |
| Inhouse Employer | Island Wide | - | OE | SS | Sembawang |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SS | Sembawang |
