| Wellington Medical Centre Limited | Private company limited by shares | Live |
| WELLMAX MEDICAL CENTRE LIMITED | Private company limited by shares | Dissolved |
| WELLON MEDICAL CENTRE LIMITED | | Live |
| WENK MEDICAL LIMITED | Private company limited by shares | Dissolved |
| WERFEN MEDICAL LIMITED | Private company limited by shares | Dissolved |
| WESTCODE DENTAL MEDICAL CO., LIMITED | Private company limited by shares | Live |
| WESTERN MEDICAL LIMITED | Private company limited by shares | Live |
| WESTERN MEDICAL CENTRE LIMITED | Private company limited by shares | Dissolved |
| WESTERN CHINESE MEDICAL RESEARCH LIMITED | Private company limited by shares | Dissolved |
| Whiterock Medical Limited | Private company limited by shares | Live |
| Windland Medical Center Limited | Private company limited by shares | Live |
| HK Windon Medical Limited | Private company limited by shares | Live |
| Windsor Medical Company Limited | | Live |
| Wing Fat Medical Limited | Private company limited by shares | Live |
| LO WING KEE MEDICAL LIMITED | Private company limited by shares | Live |
| Wing Kin Medical Company Limited | Private company limited by shares | Live |
| WAI WING MEDICAL LIMITED | Private company limited by shares | Live |
| WING YIN MEDICAL BEAUTY LIMITED | Private company limited by shares | Dissolved |
| WING FAI MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| KWUN WING MEDICAL LIMITED | Private company limited by shares | Live |
| WING TAK MAN LOONG MEDICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| WING SHUNG MEDICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| DR. TSE WING YUEN MEDICAL LIMITED | Private company limited by shares | Live |
| WINGATE MEDICAL LIMITED | Private company limited by shares | Live |
| Winlink Medical Limited | Private company limited by shares | Live |
| WINNER MEDICAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| WINNER MEDICAL NETWORKS LIMITED | Private company limited by shares | Live |
| Winsome Medical Limited | Private company limited by shares | Live |
| WINSTON MEDICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| WIPO MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| WISDOM MEDICAL LIMITED | Private company limited by shares | Live |
| WISE MEDICAL LIMITED | Private company limited by shares | Live |
| WISE MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| WISE LEAD MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| Medin AI & Wise Medical Limited | Private company limited by shares | Live |
| WISECARE MEDICAL CENTER LIMITED | Private company limited by shares | Live |
| WOMAN CARE MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| Wong Kan Nam Medical Company Limited | Private company limited by shares | Live |
| DR. WONG LOK YAN MEDICAL CLINIC LIMITED | Private company limited by shares | Live |
| Dr. Wong Kai Pun Medical Service Company Limited | Private company limited by shares | Live |
| Agnes Wong Medical Service Limited | Private company limited by shares | Live |
| Health Works Medical Centre Limited | Private company limited by shares | Live |
| MEDICAL WRITING WORKSHOP LIMITED | Private company limited by shares | Dissolved |
| Reengine Workwear & Medical Company Limited | Private company limited by shares | Live |
| WORLDLINK MEDICAL SYSTEM LIMITED | Private company limited by shares | Dissolved |
| Wudang Ye's Tai Chi Medical Research Co., Limited | | Live |
| Wylie Medical Technology Limited | | Live |
| Huamei Xingyan Medical Cosmetology Limited | Private company limited by shares | Live |
| Xingyun Medical Service Co., Limited | Private company limited by shares | Live |
| HK XINGYUN MEDICAL BEAUTY GROUP LIMITED | Private company limited by shares | Live |
| XINHANG MEDICAL LIMITED | Private company limited by shares | Live |
| XiongAn Medical Limited | Private company limited by shares | Live |
| Keen Care Medical Laboratory and X-Ray Services Limited | Private company limited by shares | Live |
| YANBON MEDICAL LIMITED | Private company limited by shares | Live |
| YI YANG HE MEDICAL HEALTH INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Ta Yang Medical Investment Limited | Private company limited by shares | Live |
| YANXUAN MEDICAL BEAUTY GROUP LIMITED | | Live |
| YATSEN MEDICAL LIMITED | Private company limited by shares | Live |
| YEAP MEDICAL HOLDING LIMITED | Private company limited by shares | Live |
| YearZeal Medical Limited | Private company limited by shares | Live |
| Luk Yeung Medical Centre Limited | Private company limited by shares | Live |
| New Luk Yeung Medical Centre Limited | Private company limited by shares | Live |
| YEUNG NG TONG MEDICAL MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| YEUNG NG TONG MEDICAL MANUFACTORY LIMITED | Private company limited by shares | Live |
| Tsuen Wan Luk Yeung Medical Centre Limited | Private company limited by shares | Live |
| Wing Yeung Medical Centre Co. Limited | | Live |
| Tonglu Yida Medical Devices Co., Limited | Private company limited by shares | Live |
| YIDEHAO MEDICAL LIMITED | Private company limited by shares | Dissolved |
| Yihe Medical Care Company Limited | Private company limited by shares | Live |
| Yihe Medical Group Limited | | Live |
| KAM YING MEDICAL LIMITED | Private company limited by shares | Live |
| MA YIN YING MEDICAL CARE LIMITED | Private company limited by shares | Live |
| TSZ YING MEDICAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| YING KIT MEDICAL STORE LIMITED | Private company limited by shares | Dissolved |
| Well Ying Medical Limited | | Live |
| Yiwu Kaoshidun Medical Equipment Co., Limited | Private company limited by shares | Live |
| YIYUAN MEDICAL INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Charming Medical (YL) Limited | | Live |
| Yolanda Medical Limited | Private company limited by shares | Live |
| Yong En Medical Investment Limited | Private company limited by shares | Live |
| HOLLAND YONGHUI MEDICAL TECH LIMITED | Private company limited by shares | Live |
| YOUNG'S MEDICAL CENTRE LIMITED | Private company limited by shares | Dissolved |
| Y'SIS MEDICAL BEAUTY CENTRE LIMITED | Private company limited by shares | Live |
| YUAN RUI ASIA BIO MEDICAL LIMITED | Private company limited by shares | Live |
| Ming Yuan Medical Beauty Co., Limited | Private company limited by shares | Live |
| Wing Yuan Health Medical Company Limited | | Live |
| FU YUAN MEDICAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KAI YUEN MEDICAL LIMITED | Private company limited by shares | Live |
| UMP Medical Centre (Yuen Long) Limited | Private company limited by shares | Live |
| YUENMAVIS MEDICAL CONSULTANCY LIMITED | Private company limited by shares | Live |
| YUJI MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| YUMMI MEDICAL CARE LIMITED | Private company limited by shares | Live |
| YUQI MEDICAL LIMITED | | Live |
| Zanzibar Medical Limited | | Live |
| ZENITH MEDICAL CO. LIMITED | Private company limited by shares | Live |
| Zenith Medical Centre Limited | Private company limited by shares | Live |
| ZEPPELIN MEDICAL ASIA LIMITED | Private company limited by shares | Live |
| MEDICAL ZETTLE LIMITED | Private company limited by shares | Dissolved |
| DOCTOR ZHANG MEDICAL EXAMINATION CENTER LIMITED | Private company limited by shares | Live |
| DA HAN SHI ZHEN MEDICAL COMPANY LIMITED | Private company limited by shares | Live |