| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Simei |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Acestes Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Yishun |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Soverus Pte Ltd | Island Wide | - | SSO | SSO | Simei |
| Soverus Pte Ltd | Island Wide | - | OE | SO | Hougang |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Boon Lay |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Boon Lay |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Boon Lay |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| SATS Ltd | Island Wide | - | OM | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Sengkang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | CSO | Woodlands |
| SATS Ltd | Island Wide | - | OM | Nil | Punggol |
