| PICO Guards Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | CSO | Marsiling |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Strive Security Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Punggol |
| Elid Technology International Pte Ltd | Island Wide | - | SSO | SSO | Punggol |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| SATS Ltd | Island Wide | - | Inves | Nil | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | Nil | Yishun |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Yishun |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Certis Group | Island Wide | - | SSO | SO | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Choa Chu Kang |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Choa Chu Kang |
