| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Aigle Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Inhouse Employer | Central | In-House | SSS | CSO | Clementi |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SSO | CSO | Clementi |
| Labourtel Management Corporation Pte Ltd | East | Dormitory | CSO | CSO | Clementi |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| PICO Guards Pte Ltd | Central | Commercial | SSS | CSO | Clementi |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | CSO | Choa Chu Kang |
| Elitez Security Pte Ltd | Central | Commercial | SSS | CSO | Clementi |
| SATS Ltd | Island Wide | - | OM | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| TwinRock Global | Central | - | OE | CSO | Bedok |
| SATS Ltd | East | - | OE | CSO | Toa Payoh |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Toa Payoh |
| Inhouse Employer | West | In-House | OM | CSO | Toa Payoh |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Toa Payoh |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| SATS Ltd | East | - | OE | CSO | Marsiling |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
