| Concorde Security Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| SATS Ltd | Island Wide | - | OM | SSS | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| TwinRock Global | Central | - | Security Mgt | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Sengkang |
| Acestes Pte Ltd | Island Wide | - | OM | Nil | Ang Mo Kio |
| Inhouse Employer | Island Wide | - | OE | CSO | Marsiling |
| SATS Ltd | Island Wide | - | Inves | CSO | Marsiling |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Marsiling |
| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Marsiling |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| SATS Ltd | Island Wide | - | OM | CSO | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| PICO Guards Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
