| Union Security Services Pte. Ltd. | West | Condominium | SS | SS | Bukit Panjang |
| Titanium Safety & Security Pte Ltd | West | Dormitory | SSO | SSO | Bukit Batok |
| DP Quest Investigation Consultancy Pte Ltd | West | Condominium | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | West | School | SSO | SSO | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | West | Commercial | SSO | SSO | Bukit Batok |
| ADT Integrated Security Solutions Pte. Ltd. | West | Commercial | SSO | SSO | Bukit Batok |
| Certis Group | West | School | SSO | SSO | Bukit Batok |
| DP Quest Investigation Consultancy Pte Ltd | West | Condominium | SSO | SSO | Bukit Batok |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| ADT Integrated Security Solutions Pte. Ltd. | West | Commercial | SSO | SSO | Jurong East |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Jurong East |
| TwinRock Global | West | Condominium | SSO | SSO | Woodlands |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Boon Lay |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SS | SS | Bukit Panjang |
| Inhouse Employer | West | School | OE | CSO | Bukit Batok |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Bukit Batok |
| Republic of Singapore Yacht Club | West | In-House | SO | CSO | - |
| Inhouse Employer | West | School | OE | SS | Pioneer |
| Hawkeye Security Solutions Pte Ltd | West | Industrial / Factory | SS | SS | Bukit Panjang |
| Inhouse Employer | West | School | OE | SSS | Woodlands |
| Inhouse Employer | West | School | OE | SSS | Woodlands |
| Royal Security Management Services Pte Ltd | West | Dormitory | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SS | SS | Pioneer |
| FormTeam Consultancy Pte Ltd | West | Condominium | SSO | SSO | Woodlands |
