| Company Name | Type | Status |
|---|---|---|
| QUESTA LIMITED | Private company limited by shares | Live |
| Questa Trade Limited | Private company limited by shares | Live |
| QUESTAK LIMITED | Private company limited by shares | Dissolved |
| QUESTANO HK LIMITED | Live | |
| QUESTAR LIMITED | Private company limited by shares | Live |
| QUESTAR-MARCOM ASIA LIMITED | Private company limited by shares | Dissolved |