| RAS Security Pte Ltd | North | Commercial | OE | SSO | Tuas Link |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sembawang |
| Inhouse Employer | Island Wide | - | OE | SS | Sembawang |
| Securus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| SATS Ltd | East | - | OE | SSS | Tampines |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Yishun |
| SATS Ltd | East | - | OE | CSO | Toa Payoh |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Security & Risk Solutions Pte. Ltd. | Island Wide | - | OE | SS | Aljunied |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Marsiling |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Inhouse Employer | Island Wide | - | OE | SSS | Toa Payoh |
