| Inhouse Employer | North | Commercial | SO | SSO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SSO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | SO | SSO | Bukit Batok |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OE | SSO | Bukit Batok |
| Riverfort Pte Ltd | Central | Hotel | SO | SSO | Bukit Batok |
| A-SAT Pte Ltd | North | Commercial | SSO | SSO | Bukit Batok |
| Inhouse Employer | Central | Hotel | OE | SSO | Bukit Batok |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Grand Copthorne Waterfront Hotel | Central | In-House | SSO | SSO | Bukit Batok |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | 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 |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSO | Bukit Batok |
| Artyzen Singapore | Central | Hotel | SO | 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 |
| Soverus Pte Ltd | Island Wide | - | OE | SSO | Woodlands |
| GWC Commercial Pte. Ltd. | Central | Commercial | SO | SSO | - |
| Dragnet Smartech Security Pte Ltd | Central | Commercial | SO | SSO | Tampines |
| IGC Security Services Pte Ltd | Central | Condominium | SSO | SSO | Sengkang |
