| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Commercial | SS | SSO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SS | SSO | Jurong East |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSO | Jurong East |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Jurong East |
| Dragnet Smartech Security Pte Ltd | East | - | SSO | SSO | Jurong East |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Jurong East |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| Inhouse Employer | Central | Hotel | SO | SSO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | - |
| GWC Commercial Pte. Ltd. | Central | Commercial | SO | SSO | - |
| Pan Pacific Serviced Suites Beach Road | South | In-House | SO | SSO | - |
| Inhouse Employer | West | In-House | SO | SSO | - |
| Inhouse Employer | Central | In-House | SO | SSO | - |
| Inhouse Employer | East | In-House | SO | SSO | - |
| York Hotel (Private) Limited | Central | In-House | SO | SSO | - |
| Prospect Protection Pte Ltd | West | Industrial / Factory | SSO | SSO | - |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSO | Hougang |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Hougang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSO | Bukit Batok |
| Certis Group | Central | Commercial | SO | SSO | Bukit Batok |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Bukit Batok |
