| MESO LIMITED | Private company limited by shares | Live |
| DR MESO LIMITED | Private company limited by shares | Dissolved |
| Era Meso Company Limited | Private company limited by shares | Live |
| MESO BEAUTY LIMITED | Private company limited by shares | Live |
| Bloomage Meso Investment Limited | Private company limited by shares | Live |
| MESOCCO LIMITED | Private company limited by shares | Dissolved |
| MESOCEAN SCIENTIFIC TECHNOLOGY LIMITED | | Live |
| MESOCO (HONG KONG) OUT SOURCING CO., LIMITED | Private company limited by shares | Live |
| MESON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MESON INVESTMENT LIMITED | Private company limited by shares | Live |
| HK Meson Jewelry Limited | Private company limited by shares | Live |
| MESON NETWORK LIMITED | | Live |
| MESON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| Meson Tech Company Limited | Private company limited by shares | Live |
| Meson Technology Limited | Private company limited by shares | Live |
| MESON TRADING HK LIMITED | Private company limited by shares | Live |
| MESON TRADING LIMITED | Private company limited by shares | Live |
| MESONIX LIMITED | Private company limited by shares | Live |
| HK MESOO.J CLOTHING LIMITED | Private company limited by shares | Live |
| MESOPAS LIMITED | Private company limited by shares | Live |
| Mesopotamia Limited | Private company limited by shares | Live |
| Mesopotamia Consortium Limited | Private company limited by shares | Live |
| Mesopotamia Trading Limited | | Live |
| MESOROCK LEISURE PRODUCTS LIMITED | Private company limited by shares | Live |
| MESOSCRIPT ARCHITECTS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MESOTHERAPY CENTRE LIMITED | Private company limited by shares | Live |
| MESOZOIC LIMITED | Private company limited by shares | Live |