| Soverus Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Woodlands |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| RAS Security Pte Ltd | North | Commercial | OE | Nil | Pasir Ris |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | Nil | Dover |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | Nil | Dover |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSO | MacPherson |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSO | MacPherson |
| Securus Pte Ltd | Island Wide | - | OE | SSO | Choa Chu Kang |
