| RAS Security Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Soverus Pte Ltd | Central | Commercial | SSS | SSS | Jurong East |
| RAS Security Pte Ltd | North | Commercial | SSO | Nil | Bukit Batok |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Force-One Security | Central | Commercial | SO | SSO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| Dragnet Smartech Security Pte Ltd | West | Commercial | SSS | SSS | Choa Chu Kang |
| Force-One Security | Central | Commercial | SO | SO | Yishun |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Tiong Bahru |
| Certis Group | Central | Commercial | SO | SSO | Choa Chu Kang |
| PICO Guards Pte Ltd | Central | Commercial | SSS | CSO | Toa Payoh |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Bukit Batok |
| Certis Group | Central | Commercial | SO | SS | Bukit Batok |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SS | Bukit Batok |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| SECOM Smart (Singapore) Pte. Ltd. | West | Commercial | SSO | SSO | Choa Chu Kang |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Commonwealth |
| Inhouse Employer | North | Commercial | SO | SSO | Choa Chu Kang |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SO | SO | Serangoon |
