| HUAJUN MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| HK HUIAI MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| Icon Medical Management Pte Limited | Private company limited by shares | Live |
| UMP Medical Centre Management (III) Limited | Private company limited by shares | Live |
| MEDICAL INFORMEDICS MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ASIA MEDICAL INSTITUTIONS MANAGEMENT LIMITED | Private company limited by shares | Live |
| HK CMX Medical Investment Management Limited | Private company limited by shares | Live |
| BEAUTI-LIGHT MEDICAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| H.K.WEISHA MEDICAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| HK HONGKANG MEDICAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| HK MINGJI MEDICAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| IVY MEDICAL INVESTMENT SERVICE MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Kangxin Medical Investment Management Limited | | Live |
| Lanhai Medical Management Limited | Private company limited by shares | Live |
| Luye Medical Management Limited | Private company limited by shares | Live |
| MeiJian Medical Management Limited | Private company limited by shares | Live |
| NETWORK MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Ninety-Nine Medical Management Company Limited | | Live |
| ASIA PACIFIC MEDICAL INVESTMENT & MANAGEMENT LIMITED | Private company limited by shares | Live |
| STAR MEDICAL INVESTMENT & MANAGEMENT INCORPORATED LIMITED | Private company limited by shares | Live |
| IDS Medical Systems Management Limited | Private company limited by shares | Live |
| HK TIANRUN MEDICAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| HK TONG REN MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| Uhealth Medical Investment Management Co. Limited | Private company limited by shares | Live |
| HK WODE MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| YEJIGNM MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| Medical Young Management Limited | Private company limited by shares | Live |
| GEN YOUNG AESTHETIC MEDICAL MANAGEMENT CONSULTANCY LIMITED | Private company limited by shares | Live |
| YOUNGCODE MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| MANDALA MEDICAL EDUCATION LIMITED | Private company limited by shares | Live |
| MANDY HO MEDICAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| MANFUL MEDICAL (ASIA) LIMITED | | Live |
| ASSOCIATED MEDICAL MANUFACTURING LIMITED | Private company limited by shares | Live |
| MARIA'S MEDICAL BEAUTY & SPA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mark Medical Company Limited | Private company limited by shares | Live |
| MARK TO MARKET MEDICAL LIMITED | Private company limited by shares | Live |
| Mars Medical Limited | Private company limited by shares | Live |
| MARSHA MEDICAL LIMITED | Private company limited by shares | Live |
| MARYKNOLL MEDICAL AND WELFARE ASSOCIATION LIMITED -THE- | Company limited by guarantee | Live |
| HK MEDICAL MASK LIMITED | Private company limited by shares | Live |
| GOMEDICO MEDICAL MASK FACTORY LIMITED | Private company limited by shares | Live |
| MAST Medical Group Limited | Private company limited by shares | Live |
| MASTER MEDICAL LIMITED | Private company limited by shares | Live |
| MASTER K MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| Master Chinese Medical Clinic Limited | Private company limited by shares | Live |
| TS Idea Medical Material Co. Limited | | Live |
| CHINA MEDICAL MATERIALS INDUSTRY ASSOCIATION LIMITED | Private company limited by shares | Live |
| Maxlect Medical LIMITED | | Live |
| MEDAES MEDICAL LIMITED | Private company limited by shares | Live |
| MedHealth Medical Limited | | Live |
| MEDI PLUS MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| HK MEDI43 MEDICAL LIMITED | Private company limited by shares | Live |
| MedicHealth Medical Technology Company Limited | Private company limited by shares | Live |
| Medico Medical Devices Co., Limited | | Live |
| MEDIFAST MEDICAL CENTER LIMITED | Private company limited by shares | Live |
| MEDIPLUS MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| Medisun Medical Center Limited | Private company limited by shares | Live |
| Medisun Precision Medical Center Limited | Private company limited by shares | Live |
| Medisun Regenerative Medical Center Limited | Private company limited by shares | Live |
| MEDITECH MEDICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| MEDITEK MEDICAL LIMITED | Private company limited by shares | Dissolved |
| MEGA MEDICAL PROMOTIONAL COMPANY LIMITED | Private company limited by shares | Live |
| MEGATOP MEDICAL TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| MEGATOP MEDICAL TECHNOLOGIES SERVICE LIMITED | Private company limited by shares | Live |
| M.E.H. MEDICAL DEVICES COMPANY LIMITED | Private company limited by shares | Live |
| MEIYUN MEDICAL GROUP LIMITED | Private company limited by shares | Live |
| MEKON HK MEDICAL LIMITED | | Live |
| Mena Medical Limited | | Live |
| MENGSHIRUI MEDICAL RESEARCH CENTER LIMITED | Private company limited by shares | Live |
| MEONTAI MEDICAL LIMITED | Private company limited by shares | Dissolved |
| Mercer Medical Limited | Private company limited by shares | Live |
| GRAND MERIT MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| Meta Medical Limited | | Live |
| MetaLab Medical Beauty Group Limited | | Live |
| Metro Medical Company Limited | Private company limited by shares | Live |
| Metro Medical Centre Limited | Private company limited by shares | Live |
| Mevion Medical Systems Limited | Private company limited by shares | Live |
| MEYCHSON MEDICAL LIMITED | Private company limited by shares | Live |
| MicroPort Medical (Hong Kong) Limited | Private company limited by shares | Dissolved |
| MILES MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| MILESTONE MEDICAL LIMITED | Private company limited by shares | Dissolved |
| MILLENNIUM MEDICAL LIMITED | | Live |
| Million Rivers Medical Centre Limited | | Live |
| YUE SAM MIND MEDICAL ASSISTANCE LIMITED | | Live |
| HAPPY MIND MEDICAL CENTER LIMITED | Private company limited by shares | Live |
| Mindful Medical Centre Limited | | Live |
| MINDS MEDICAL LIMITED | Private company limited by shares | Live |
| Minful Medical Limited | Private company limited by shares | Live |
| MiracleMed Medical Company Limited | Private company limited by shares | Dissolved |
| MIRAE MEDICAL CO., LIMITED | Private company limited by shares | Live |
| MIRCARE MEDICAL CARE COMPANY LIMITED | Private company limited by shares | Dissolved |
| MISSION MEDICAL CARE LIMITED | Private company limited by shares | Dissolved |
| MITSUBISHI TANABE MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| MIUSEE MEDICAL LIMITED | | Live |
| Cos Max Medical Centre (MK) Limited | | Live |
| Charming Medical (MK) Limited | | Live |
| HK M-LINK MEDICAL SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| MODERN MEDICAL BLOC LIMITED | Private company limited by shares | Dissolved |
| Modern Chinese Medical Centre Limited | Private company limited by shares | Live |
| MODERN GENERAL MEDICAL MAGAZINE CO., LIMITED | Private company limited by shares | Live |