| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Bukit Panjang |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Bukit Panjang |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SSS | Tampines West |
| Legion Protection Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Aigle Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Certis Group | Island Wide | - | SO | SS | Admiralty |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Legion Protection Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Aigle Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
