| SATS Ltd | Island Wide | - | OM | CSO | Boon Lay |
| SATS Ltd | Island Wide | - | OM | CSO | Boon Lay |
| Aedge Services Pte Ltd | Island Wide | - | OM | CSO | Boon Lay |
| Inhouse Employer | Island Wide | Construction | OM | SS | Sengkang |
| AETOS Holdings Pte Ltd | Island Wide | Commercial | SSO | SSO | Bukit Batok |
| Acestes Pte Ltd | Island Wide | Condominium | SSO | SSO | Bukit Batok |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Bukit Batok |
| Metropolis Security Systems Pte Ltd | Island Wide | Mix-Development | SSO | SSO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SS | SS | Yishun |
| Inhouse Employer | Island Wide | Construction | OM | SSS | Sengkang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Bukit Panjang |
| Ademco Security Pte Ltd | Island Wide | - | OM | SSS | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SS | SSO | Admiralty |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
| Inhouse Employer | Island Wide | Construction | OM | SSO | Sengkang |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Bukit Batok |
| Inhouse Employer | Island Wide | Construction | OM | SSS | Dover |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Tampines East |
| Securus Pte Ltd | Island Wide | - | OE | SS | Tampines East |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | SS | Tampines East |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Tampines East |
| Soverus Pte Ltd | Island Wide | - | SSO | SSO | Jurong East |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Jurong East |
| AETOS Holdings Pte Ltd | Island Wide | Commercial | SSO | SSO | Jurong East |
| Securus Pte Ltd | Island Wide | Commercial | OE | SSO | Admiralty |
