| Que's Trading Limited | Private company limited by shares | Live |
| JUSTO QUESADA (HK) LIMITED | Private company limited by shares | Dissolved |
| QUESAL LIMITED | Private company limited by shares | Dissolved |
| QUESCHAIN CAPITAL LIMITED | Private company limited by shares | Live |
| Quesche Co., Limited | Private company limited by shares | Live |
| QUESCO S.I. LIMITED | Private company limited by shares | Dissolved |
| QUESCO SYSTEMS LIMITED | Private company limited by shares | Live |
| QUESERA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| QueSeraSera Limited | Private company limited by shares | Live |
| QUESHAN LIMITED | Private company limited by shares | Live |
| QUESHILL LIMITED | Private company limited by shares | Dissolved |
| QUESO COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUESO TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| QUESO EDAM GROUP LIMITED | | Live |
| TOY QUEST LIMITED | Private company limited by shares | Live |
| NEW QUEST LIMITED | Private company limited by shares | Live |
| QUEST LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Feb-2015 |
| ART QUEST LIMITED | Private company limited by shares | Live |
| QUEST TOP LIMITED | Private company limited by shares | Live |
| Quest ION Limited | Private company limited by shares | Live |
| QUEST WIN LIMITED | Private company limited by shares | Live |
| Zen Quest Limited | Private company limited by shares | Live |
| Quest HK Limited | Private company limited by shares | Live |
| RM QUEST LIMITED | Private company limited by shares | Live |
| Fit Quest Limited | | Live |
| QUEST ADVENTURE LIMITED | Private company limited by shares | Live |
| Zen Quest Adventures Limited | Private company limited by shares | Live |
| QUEST ADVENTURES LIMITED | | Live |
| Quest Win Asia Limited | Private company limited by shares | Live |
| VISION QUEST ASIA LIMITED | Private company limited by shares | Dissolved |
| QUEST ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| Quest HRM & Associates Limited | Private company limited by shares | Live |
| Atlantic Quest Limited | Private company limited by shares | Live |
| BEAUTY QUEST LIMITED | Private company limited by shares | Live |
| BEAUTY QUEST CENTRE LIMITED | Private company limited by shares | Live |
| Bergen Quest Limited | Private company limited by shares | Live |
| Bergen Quest Resources Limited | Private company limited by shares | Live |
| BEST QUEST LIMITED | Private company limited by shares | Dissolved |
| Checkers Quest Limited | Private company limited by shares | Live |
| SEA QUEST (CHINA) LIMITED | Private company limited by shares | Live |
| CHINA QUEST LIMITED | Private company limited by shares | Live |
| CHINA ORIENT QUEST LIMITED | Private company limited by shares | Dissolved |
| CHIRAL QUEST LIMITED | Private company limited by shares | Live |
| CHIRAL QUEST II LIMITED | Private company limited by shares | Live |
| QUEST IPR CO., LIMITED | Private company limited by shares | Live |
| Quest X Co., Limited | Private company limited by shares | Live |
| QUEST LAB CO., LIMITED | Private company limited by shares | Live |
| Room Quest Co., Limited | Private company limited by shares | Live |
| RZS QUEST SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| DESIGN QUEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| DESIGN QUEST LIMITED | Private company limited by shares | Live |
| DIAMOND QUEST LIMITED | Private company limited by shares | Live |
| Quest Digital Limited | Private company limited by shares | Live |
| DRAGON QUEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| DREAM QUEST LIMITED | Private company limited by shares | Dissolved |
| Quest Education Limited | Private company limited by shares | Dissolved |
| QUEST EDUCATION LIMITED | Private company limited by shares | Live |
| ENGLISH QUEST LIMITED | Private company limited by shares | Dissolved |
| QUEST ENTERPRISE LIMITED | Private company limited by shares | Live |
| QUEST ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| QUEST ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| Eternal Quest Limited | Private company limited by shares | Live |
| Fortune Quest Limited | Private company limited by shares | Live |
| Future Quest Company Limited | Private company limited by shares | Live |
| GENESIS QUEST LIMITED | Private company limited by shares | Live |
| Global Quest Limited | Private company limited by shares | Live |
| GLOBAL QUEST ENTERPRISE LIMITED | Private company limited by shares | Live |
| GLOBAL QUEST GROUP LIMITED | Private company limited by shares | Live |
| GOLD QUEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUEST GOLD LIMITED | Private company limited by shares | Dissolved |
| GRAND QUEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUEST GROUP INT LIMITED | | Live |
| QUEST HOLDING LIMITED | Private company limited by shares | Live |
| Humble Quest Company Limited | Private company limited by shares | Live |
| IDEA QUEST LIMITED | Private company limited by shares | Live |
| Quest Integrity Limited | Private company limited by shares | Live |
| Asia Quest Investment Company Limited | Private company limited by shares | Live |
| QUEST INVESTMENTS LIMITED | Private company limited by shares | Live |
| QUEST SKY INVESTMENTS LIMITED | Private company limited by shares | Live |
| KINGSTON QUEST GROUP LIMITED | Private company limited by shares | Live |
| Knowledge Quest HK Limited | Private company limited by shares | Live |
| LEADER QUEST LIMITED | Private company limited by shares | Live |
| QUEST ONLINE LEARNING LIMITED | Private company limited by shares | Live |
| Quest Lifestyle Company Limited | Private company limited by shares | Live |
| QUEST MARK LIMITED | Private company limited by shares | Dissolved |
| QUEST CAPITAL MARKETS LIMITED | Private company limited by shares | Live |
| Meyerson Quest, Limited | Private company limited by shares | Live |
| NOVA INNOVATION QUEST LIMITED | Private company limited by shares | Live |
| QUEST PACIFIC LIMITED | Private company limited by shares | Dissolved |
| PACIFIC QUEST LIMITED | Private company limited by shares | Dissolved |
| QUEST PACIFIC LIMITED | Private company limited by shares | Live |
| QUEST PAYNET LIMITED | Private company limited by shares | Live |
| Quest Properties Limited | Private company limited by shares | Live |
| REIGN QUEST LIMITED | Private company limited by shares | Dissolved |
| SHINING QUEST LIMITED | Private company limited by shares | Live |
| SIDE QUEST LIMITED | Private company limited by shares | Live |
| SILVER QUEST LIMITED | Private company limited by shares | Live |
| QUEST SOFTWARE LIMITED | Private company limited by shares | Dissolved |
| STAR QUEST ENTERTAINMENT & PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| Stardom Quest Limited | | Live |