| 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 |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Legion Protection Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Aigle Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | SS | Admiralty |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Securus Pte Ltd | Island Wide | Commercial | OE | SS | Admiralty |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SS | SS | Admiralty |
| SATS Ltd | Island Wide | - | OM | CSO | Bukit Batok |
| Aedge Services Pte Ltd | Island Wide | - | OM | CSO | Bukit Batok |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Bukit Panjang |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSS | Bukit Panjang |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Bedok North |
| Aigle Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Admiralty |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Admiralty |
