| MicroMag Healthcare Limited | Private company limited by shares | Live |
| MICROMAIL LIMITED | Private company limited by shares | Dissolved |
| MICROMAN (HK) LIMITED | Private company limited by shares | Live |
| MICROMANAGEMENT LIMITED | Private company limited by shares | Live |
| Micromaritime Limited | Private company limited by shares | Live |
| Micro-Marketing Business Institue (Group) Limited | Private company limited by shares | Live |
| TACTICS MICRO-MARKETING LIMITED | Private company limited by shares | Dissolved |
| MICROMART HK LIMITED | Private company limited by shares | Live |
| MICROMAT LIMITED | Private company limited by shares | Dissolved |
| MICROMATHS RESEARCH LIMITED | Private company limited by shares | Dissolved |
| MICROMAX LIMITED | Private company limited by shares | Dissolved |
| MICROMECHANICS LIMITED | Private company limited by shares | Live |
| MicroMed Limited | Private company limited by shares | Live |
| MICROMEDIA (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| MICROMEDIC CARD (HK) LIMITED | Private company limited by shares | Dissolved |
| MICROMERCHANT INTERNATIONAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| MicrometaTechnologies Limited | | Live |
| Micrometer Limited | Private company limited by shares | Live |
| MICROMEX ENTERPRISE HK LIMITED | Private company limited by shares | Dissolved |
| Micromirror Limited | Private company limited by shares | Live |
| GEARBOX MICROMOTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| MICROMOTION (HONG KONG) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| MICROMOVE TECHNOLOGY LIMITED | Private company limited by shares | Live |