| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Woodlands |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSO | Jurong East |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSO | Jurong East |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| Inhouse Employer | Island Wide | - | OE | SS | Pioneer |
| Securus Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| SATS Ltd | Island Wide | - | OM | SS | Pioneer |
| SATS Ltd | Island Wide | - | OM | CSO | Yishun |
| Certis Group | Island Wide | - | SO | CSO | Yishun |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Inhouse Employer | Island Wide | Construction | OM | SS | Pioneer |
| SATS Ltd | Island Wide | - | OM | SS | Pioneer |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SS | Pioneer |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Pioneer |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SO | Woodlands |
| SATS Ltd | Island Wide | - | OM | SSS | Ang Mo Kio |
| Inhouse Employer | Island Wide | Construction | OM | SS | Tampines |
| Inhouse Employer | Island Wide | Construction | OM | SSO | Hougang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSO | Hougang |
