| Premier Security Co-operative Ltd | East | Commercial | SO | Nil | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSO | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSO | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSO | Simei |
| Securus Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Securus Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Force-One Security | North | Data Centre | OE | SSO | Simei |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSO | Simei |
| Force-One Security | North | Data Centre | OE | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Horus I (Private Limited) | Central | Retail | SO | SO | Tai Seng |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SO | SO | Tai Seng |
| ONE°15 Marina Sentosa Cove, Singapore | South | In-House | OE | SS | Tampines |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Managment | SS | Tampines |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SSS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Tampines |
| Ademco Security Pte Ltd | East | Industrial / Factory | SS | SS | Tampines |
| Ademco Security Pte Ltd | East | Industrial / Factory | SS | SS | Tampines |
| Uniforce Security Services Pte Ltd | East | Commercial | SS | SS | Tampines |
