| Company Name | Type | Status |
|---|---|---|
| QUESTER CO., LIMITED | Private company limited by shares | Live |
| QUESTER ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| Quester Education (Kowloon) Limited | Private company limited by shares | Live |
| QUESTER CAPITAL (HK) LIMITED | Private company limited by shares | Live |
| Quester International Limited | Private company limited by shares | Live |
| QUESTER INTERNATIONAL PETROLEUM EQUIPMENT LIMITED | Private company limited by shares | Live |
| Quester Securities (HK) Limited | Live |