| PICO Guards Pte Ltd | North | Industrial / Factory | SSO | SS | Woodlands |
| Force-One Security | North | Data Centre | SS | SSS | Ang Mo Kio |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SO | Sembawang |
| A-SAT Pte Ltd | North | Commercial | SSO | SS | Woodlands |
| A-SAT Pte Ltd | North | Commercial | SSO | SS | Woodlands |
| A-SAT Pte Ltd | North | Mix-Development | SSO | SS | Woodlands |
| Union Security Services Pte. Ltd. | North | Commercial | SSO | SS | Woodlands |
| A-SAT Pte Ltd | North | Commercial | SSO | SS | Woodlands |
| IGC Security Services Pte Ltd | North | Commercial | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SSO | SSO | Bukit Batok |
| RAS Security Pte Ltd | North | In-House | Office Team | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SSO | SSO | Yishun |
| TwinRock Global | North | Dormitory | SO | SO | Yishun |
| Metropolis Security Systems Pte Ltd | North | Condominium | SO | SO | Yishun |
| PICO Guards Pte Ltd | North | Industrial / Factory | SS | SS | Bukit Panjang |
| PICO Guards Pte Ltd | North | Industrial / Factory | SSO | SS | Woodlands |
| Peregrine Security Pte. Ltd. | North | Industrial / Factory | SSO | SS | Woodlands |
| A-SAT Pte Ltd | North | Mix-Development | SSO | SS | Woodlands |
| A-SAT Pte Ltd | North | Commercial | SSO | SS | Woodlands |
| First Security & Private Investigation (Singapore) Pte Ltd | North | Condominium | SO | SO | Khatib |
| Inhouse Employer | North | In-House | SO | CSO | Yishun |
| Inhouse Employer | North | In-House | SO | CSO | Yishun |
| Inhouse Employer | North | In-House | SO | SO | Pasir Ris |
| Ranger Investigation & Security Services Pte Ltd | North | Construction | SO | SO | Pasir Ris |
| Inhouse Employer | North | In-House | SO | SO | Pasir Ris |
