| QTAA LIMITED | Private company limited by shares | Live |
| Qtac Consultancy Limited | Private company limited by shares | Live |
| QTAILO INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| QTAX TECHNOLOGY LIMITED | Private company limited by shares | Live |
| QTEAM CO., LIMITED | Private company limited by shares | Live |
| QTEC LIMITED | Private company limited by shares | Dissolved |
| QTech Asia Pacific Limited | Private company limited by shares | Live |
| Q-TECH SOLUTION COMPANY LIMITED | Private company limited by shares | Live |
| QTech Solutions Limited | | Live |
| Q-Tech Telecommunications Limited | Private company limited by shares | Live |
| Q-TECQ LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Jun-2011 |
| QTEK COMPANY LIMITED | Private company limited by shares | Dissolved |
| Q-TEK HK LIMITED | Private company limited by shares | Live |
| QTEK PRO LIMITED | Private company limited by shares | Live |
| QTEL LIMITED | Private company limited by shares | Dissolved |
| Q-TEL HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Qtest International Limited | Private company limited by shares | Live |
| QT-FLEX (H.K.) ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| Qthermal Group, Limited | Private company limited by shares | Dissolved |
| QTIMES LIMITED | Private company limited by shares | Dissolved |
| Qtmarkets Limited | Private company limited by shares | Live |
| QTNED Enterprise LIMITED | | Live |
| Q-TODAY LIMITED | | Live |
| QTONE EDUCATION GROUP LIMITED | Private company limited by shares | Live |
| Hong Kong Qtools Co., Limited | Private company limited by shares | Live |
| QTOUCH GROUP CO., LIMITED | Private company limited by shares | Live |
| QToy Technology Limited | Private company limited by shares | Live |
| Q-TOYS COMPANY LIMITED | Private company limited by shares | Live |
| Q-TOYS MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| QTPrints Ecommerce Limited | | Live |
| QTQB LIMITED | Private company limited by shares | Dissolved |
| Q.T.R. INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| QTRAC LIMITED | Private company limited by shares | Dissolved |
| QTRADE HK LIMITED | Private company limited by shares | Live |
| QTRADE LIMITED | Private company limited by shares | Live |
| Q-trade Co., Limited | Private company limited by shares | Live |
| QTradingTheory Limited | | Live |
| QTrend Capital H.K. Company Limited | Private company limited by shares | Live |
| Q-TRONICS LIMITED | Private company limited by shares | Dissolved |
| QTRUEMEDIA TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Q.T.S. Limited | Private company limited by shares | Dissolved |
| QTSW Trading Co., Limited | | Live |
| Q-TWO LIMITED | Private company limited by shares | Dissolved |