| Prosec Services Pte Ltd | East | - | SSO | SSO | Tampines |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | SSS | Admiralty |
| Eagle I Security Services Pte Ltd | Island Wide | - | SS | SS | - |
| SATS Ltd | East | - | OE | SS | Hougang |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Hougang |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Hougang |
| Soverus Pte Ltd | Island Wide | - | OE | SS | Hougang |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SS | Hougang |
| Soverus Pte Ltd | Island Wide | - | OE | SS | Hougang |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Tampines |
| SATS Ltd | Island Wide | - | OM | Nil | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Tampines |
| SATS Ltd | Island Wide | - | OM | Nil | Tampines |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Tampines |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | SS | Woodlands |
| SATS Ltd | Island Wide | - | OM | SS | Woodlands |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| PICO Guards Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| Securus Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Woodlands |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Kingston Property Maintenance Services Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Woodlands |
