| Crowne Plaza Changi Airport | East | Hotel | SSO | SSO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Jurong East |
| Crowne Plaza Changi Airport | East | Hotel | SSO | SSO | Jurong East |
| Soverus Pte Ltd | Central | Data Centre | SSO | SS | Hougang |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| Union Security Services Pte. Ltd. | North | - | SSO | SSO | Bukit Batok |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bukit Batok |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Bukit Batok |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SSO | SSO | Bukit Batok |
| A-SAT Pte Ltd | North | Commercial | SSO | SSO | Bukit Batok |
| Grand Copthorne Waterfront Hotel | Central | In-House | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Bukit Batok |
| Hawkeye Security Solutions Pte Ltd | Central | Hotel | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Bukit Batok |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | SSO | Bukit Batok |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SSO | Bukit Batok |
| GCH Pte. Ltd. | Central | In-House | SSO | SSO | Bukit Batok |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Bukit Batok |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | SSO | Bukit Batok |
| Prosec Services Pte Ltd | East | Data Centre | SSO | SO | Tampines |
| Union Security Services Pte. Ltd. | East | Commercial | SSO | SO | Tampines |
