| SATS Ltd | Island Wide | - | OM | Nil | Woodlands |
| Acestes Pte Ltd | Island Wide | - | OM | Nil | Woodlands |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Hougang |
| SATS Ltd | Island Wide | - | OM | Nil | Hougang |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Simei |
| SATS Ltd | Island Wide | - | OM | SO | Hougang |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Inhouse Employer | Island Wide | - | OE | CSO | Marsiling |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Acestes Pte Ltd | Island Wide | - | OM | SO | Tampines East |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Tampines East |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Union Security Services Pte. Ltd. | Island Wide | - | SSO | SSO | - |
| Inhouse Employer | Island Wide | Construction | OM | SS | Ang Mo Kio |
| SATS Ltd | Island Wide | - | OM | SO | Serangoon |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SO | Serangoon |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Boon Lay |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Boon Lay |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSO | Woodlands |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSO | Woodlands |
| SATS Ltd | Island Wide | - | OM | SSO | Hougang |
