| G4S Secure Solutions (Singapore) Pte Ltd | West | School | SSO | SSO | Pioneer |
| Elitez Security Pte Ltd | West | Commercial | SO | SS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bukit Batok |
| Inhouse Employer | Central | In-House | SSS | SSS | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Pasir Ris |
| Inhouse Employer | East | Hotel | Security Mgt | SS | Bukit Panjang |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SO | Tampines |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SO | Hougang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSS | Jurong East |
| Orchid Hotel Private Limited | Central | In-House | OM | SSO | Jurong East |
| Securus Pte Ltd | Island Wide | Commercial | OE | SSS | Tampines West |
| SEOMEO RELC | Central | In-House | SO | SS | Aljunied |
| SATS Ltd | Island Wide | - | OM | SO | Woodlands |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SSO | Marsiling |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Jurong East |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Jurong East |
| Security & Risk Solutions Pte. Ltd. | Central | In-House | RSOC/CAMS Op | SSO | Sengkang |
| Securitas Guarding Services (Singapore) Pte Ltd | North | Data Centre | SO | SSO | Tampines |
| Sands Global Pte Ltd | East | Condominium | SO | SO | Pasir Ris |
| Inhouse Employer | North | In-House | SO | SO | - |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SS | Marsiling |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
