| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Admiralty |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Tampines West |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | CSO | Bedok |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Bukit Batok |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | CSO | Bedok |
| Ranger Investigation & Security Services Pte Ltd | Island Wide | In-House | SS | SS | Admiralty |
| Inhouse Employer | Central | In-House | SS | SS | Admiralty |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Bukit Batok |
| Republic of Singapore Yacht Club | West | In-House | SO | CSO | - |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | Kaki Bukit |
| Inhouse Employer | Central | In-House | SO | SO | Bedok |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SS | Pioneer |
| Inhouse Employer | South | In-House | SSO | SO | Bedok |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Jurong East |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Pioneer |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Pioneer |
| Inhouse Employer | Central | In-House | SO | CSO | Yishun |
| Inhouse Employer | South | In-House | SO | CSO | Yishun |
| Inhouse Employer | North | In-House | SO | CSO | Yishun |
| Inhouse Employer | North | In-House | SO | CSO | Yishun |
| Inhouse Employer | Central | In-House | SSS | CSO | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Pioneer |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Tampines |
| Inhouse Employer | Central | In-House | SO | SO | Bedok |
| Inhouse Employer | South | In-House | SSO | SO | Bedok |
