| Winner Micro (HongKong) Limited | Private company limited by shares | Live |
| Wise Micro Tech Limited | Private company limited by shares | Live |
| MICRO WORK ELECTRONIC LIMITED | Private company limited by shares | Live |
| XINMAI MICRO LUHENG TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| XINMAI MICRO WISDOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| XTREME MICRO CO., LIMITED | Private company limited by shares | Live |
| ZhongHui Micro Technology (Hong Kong) Limited | | Live |
| ZHONGYUAN MICRO ELECTRONICS INDUSTRY GROUP LIMITED | Private company limited by shares | Dissolved |
| Micro1st Technology Company Limited | Private company limited by shares | Live |
| MICROACCOUNT LIMITED | Private company limited by shares | Dissolved |
| Microactuarial Insurance Brokers Co. Limited | Private company limited by shares | Live |
| MICROAERO TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| MICRO-AGE SUPERSTORE LIMITED | Private company limited by shares | Dissolved |
| Microamps (HK) Technology Limited | Private company limited by shares | Live |
| Microart Asia Limited | Private company limited by shares | Dissolved |
| MicroAudio Holdings Limited | Private company limited by shares | Live |
| Microavia HK Limited | Private company limited by shares | Live |
| Microbalance Tek Limited | | Live |
| MICROBASE LIMITED | Private company limited by shares | Live |
| MICROBE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| JAPAN ZHUSHIHUISHE MICROBE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Microbeam Games (HongKong) Limited | Private company limited by shares | Live |
| MICROBEAM INTERNATIONAL (HONGKONG) HOLDINGS LIMITED | Private company limited by shares | Live |
| MicroBeats Co., Limited | Private company limited by shares | Live |
| Microbebio Africa (Pty) Limited | Private company limited by shares | Live |
| Microbee International (HongKong) Limited | | Live |
| MicroBeliefsProject Co., Limited | Private company limited by shares | Live |
| PREVTEC MICROBIA HK LIMITED | Private company limited by shares | Live |
| MICROBIAL INNOVATIONS LIMITED | Private company limited by shares | Dissolved |
| MICROBIAM CLEANING COMMODITY LIMITED | Private company limited by shares | Live |
| SUN WAH MICROBIO LIMITED | Private company limited by shares | Live |
| Global Microbiological Int Cooperation Organization Limited | Private company limited by shares | Live |
| HUA SHAN MICROBIOLOGICAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HUA SHAN MICROBIOLOGICAL TECHNOLOGY LIMITED | | Live |
| Microbiome Research Centre Company Limited | | Live |
| Asia Microbiota Center Limited | Private company limited by shares | Live |
| NANO MICROBIOTA TECHNOLOGY HONG KONG LIMITED | Private company limited by shares | Live |
| Microbiota I-Center (MagIC) Limited | Company limited by guarantee | Live |
| MicroBit Holding Limited | | Live |
| MICROBITT LIMITED | Private company limited by shares | Live |
| Microbiz Online Pte Limited | | Live |
| MICROBLOG CHINA MAGAZINE LIMITED | Private company limited by shares | Live |
| MICROBLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MICROBOB LIMITED | Private company limited by shares | Dissolved |
| MICROBOR ASIA LIMITED | Private company limited by shares | Dissolved |
| Microbot Limited | Private company limited by shares | Live |
| MICROBRAND LIMITED | Private company limited by shares | Live |
| ST. SEBASTIAAN BELGIAN MICROBREWERY ASIA LIMITED | Private company limited by shares | Dissolved |
| MICROBRIDGE CONSOLIDATORS LIMITED | Private company limited by shares | Dissolved |
| MICROBUILDING MODEL DESIGN CO., LIMITED | Private company limited by shares | Live |
| MICROBUS RESEARCH LIMITED | Private company limited by shares | Dissolved |
| Micro-C Corporation Limited | Private company limited by shares | Live |
| MICROCAD PHOTOMASK (HK) LIMITED | Private company limited by shares | Live |
| MICROCAD SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NEW MICROCAD TRADING LIMITED | Private company limited by shares | Live |
| MICROCAM ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| MICROCAM TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| MICRO-CARE 21 COMPANY LIMITED | Private company limited by shares | Dissolved |
| MICRO-CARE 21 ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Microcare Trade Limited | Private company limited by shares | Live |
| Microcart Limited | Private company limited by shares | Live |
| Microcell Limited | | Live |
| MICROCELL COMMUNICATION HK LIMITED | Private company limited by shares | Dissolved |
| MICROCELLS INDUSTRY LIMITED | Private company limited by shares | Live |
| MICROCENT LIMITED | Private company limited by shares | Live |
| Microchannel Direct (HK) Limited | Private company limited by shares | Live |
| MICRO-CHANNEL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| MICROCHEAP LIMITED | Private company limited by shares | Dissolved |
| MICROCHEM SPECIALITIES CORPN LIMITED | Private company limited by shares | Dissolved |
| MICROCHEM GLOBAL LIMITED | Private company limited by shares | Live |
| MICRO-CHEM INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| MICROCHEM SPECIALITIES TRADE LIMITED | Private company limited by shares | Live |
| Giant Fortune Microchemical Group Co., Limited | Private company limited by shares | Live |
| MICROCHINA LIMITED | Private company limited by shares | Dissolved |
| MICROCHIP LIMITED | Private company limited by shares | Live |
| MICRO-CHIP ASSEMBLY ASIA, LIMITED | Private company limited by shares | Dissolved |
| YITOA Microchip Technology HK Limited | | Live |
| MICROCIG LIMITED | Private company limited by shares | Live |
| MICRO-CIRCUIT INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CAC MICROCIRCUITS, LIMITED | Private company limited by shares | Dissolved |
| CADEKA MICROCIRCUITS (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| MICROCIRCUITS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| MICROCIRCULATION GROUP LIMITED | Private company limited by shares | Dissolved |
| MICROCIRCULATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Microcirculation Technology Limited | Private company limited by shares | Dissolved |
| MICROCOAL CHINA LIMITED | Private company limited by shares | Dissolved |
| MICROCOAT GROUP LIMITED | Private company limited by shares | Dissolved |
| Micro-Coaxial Technology Co., Limited | Private company limited by shares | Live |
| MICROCODE LIMITED | Private company limited by shares | Dissolved |
| Microcode Limited | Private company limited by shares | Live |
| MICROCODE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MICROCODE TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MicroCoherent Limited | | Live |
| MICROCOLOR TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MicroCom Limited | | Live |
| MICROCOM SYSTEMS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| MICROCOM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MICROCOMP LIMITED | Private company limited by shares | Live |
| BASIC MICROCOMPUTER LIMITED | Private company limited by shares | Dissolved |
| MICROCOMPUTER RESEARCH HOLDING LIMITED | Private company limited by shares | Dissolved |