| M.E.F. COMPANY LIMITED | Private company limited by shares | Dissolved |
| MEFA LIMITED | Private company limited by shares | Dissolved |
| MEFA Limited | Private company limited by shares | Dissolved |
| Mefam Lab Limited | Private company limited by shares | Live |
| MEFCEF Optotechnology Limited | Private company limited by shares | Live |
| MEFE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Mefee9 Limited | Private company limited by shares | Live |
| MEFEND GROUP CO., LIMITED | Private company limited by shares | Live |
| Meferi (HK) Technologies Co., Limited | | Live |
| MEFFERT SOFTWARE LIMITED | Private company limited by shares | Dissolved |
| MEFFERT'S LIMITED | Private company limited by shares | Live |
| Meffert's Puzzles and Games Limited | | Live |
| MEFFORD LIMITED | Private company limited by shares | Dissolved |
| MEFIBO LIMITED | Private company limited by shares | Live |
| MEFIDA (Hong Kong) Limited | Private company limited by shares | Dissolved |
| MEFIRE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| MEFO GARDEN LIMITED | Private company limited by shares | Live |
| Hongkong Mefors International Trading Co., Limited | | Live |
| MeFort Limited | Private company limited by shares | Live |
| MEFTA INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Meftc Company Limited | Private company limited by shares | Live |
| MEFU INDUSTRIAL LIMITED | Private company limited by shares | Live |
| MEFUL LIMITED | Private company limited by shares | Dissolved |
| Mefull Heneng Refining Co., Limited | Private company limited by shares | Live |
| MEFULO INTERNATIONAL COSMETICS LIMITED | Private company limited by shares | Live |
| MEFUNDO LIMITED | | Live |