| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | Nil | Jurong East |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| SATS Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Pasir Ris |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Securus Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | CSO | Pasir Ris |
| Soverus Pte Ltd | Island Wide | - | SSS | CSO | Pasir Ris |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Pasir Ris |
| TwinRock Global | Central | - | Security Mgt | CSO | Pasir Ris |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | Tampines |
| Triple ‘S’ Protection Pte Ltd | East | - | SSO | SSO | Tampines |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Marsiling |
| SATS Ltd | Island Wide | - | Inves | CSO | Marsiling |
| SATS Ltd | Island Wide | - | OM | CSO | Marsiling |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
