| PICO Guards Pte Ltd | Island Wide | - | OE | Nil | Bukit Gombak |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | Nil | Bukit Gombak |
| SMS Investigation & Security Pte Ltd | Central | - | OM | Nil | Bukit Gombak |
| SATS Ltd | Island Wide | - | OM | Nil | Bukit Gombak |
| Acestes Pte Ltd | Island Wide | - | OM | Nil | Bukit Gombak |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| AETOS Holdings Pte Ltd | West | - | SO | SSO | Tuas Link |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | SSS | Sengkang |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| SATS Ltd | East | - | OE | SSS | Sengkang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| 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 |
| 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 |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Sengkang |
| SATS Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
