| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Choa Chu Kang |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| SATS Ltd | Island Wide | - | Inves | SS | Choa Chu Kang |
| Acestes Pte Ltd | Central | - | Security Mgt | SS | Choa Chu Kang |
| Securus Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Star Security Services | Island Wide | - | OE | SS | Choa Chu Kang |
| Mainguard Security Services (S) Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Stalwart Security Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Choa Chu Kang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Choa Chu Kang |
| Kingston Property Maintenance Services Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Soverus Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Choa Chu Kang |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Choa Chu Kang |
