| SATS Ltd | Island Wide | - | OM | Nil | Bukit Batok |
| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Bukit Batok |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Bukit Batok |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Dover |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Punggol |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Jurong East |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SS | Tampines |
| SATS Ltd | Island Wide | - | OM | SS | Tampines |
| SATS Ltd | Island Wide | - | OM | CSO | Bukit Batok |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Tampines |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Jurong East |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Pioneer |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Aedge Services Pte Ltd | Island Wide | - | OM | CSO | Bukit Batok |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| King's Security and Safety Management Pte Ltd | Island Wide | - | Sec Tech / Eng | CSO | Marsiling |
