| MECO LIMITED | Private company limited by shares | Dissolved |
| MECO LIMITED | Private company limited by shares | Live |
| CENTURY 21 MECO LIMITED | Private company limited by shares | Dissolved |
| Meco Devices Limited | Private company limited by shares | Dissolved |
| MECO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MECO ENTERPRISES LIMITED | Private company limited by shares | Live |
| MECO I.T. SOLUTION LIMITED | Private company limited by shares | Dissolved |
| MECO STRATEGY LIMITED | Private company limited by shares | Dissolved |
| Meco Trade Limited | | Live |
| Mecoci Limited | Private company limited by shares | Live |
| MECOLINK ENTERPRISE LIMITED | Private company limited by shares | Live |
| Mecom Technology (Hongkong) Company Limited | Private company limited by shares | Live |
| MECOM Investment Limited | Private company limited by shares | Live |
| MECON LIMITED | Private company limited by shares | Dissolved |
| MECON ENTERPRISES LIMITED | Private company limited by shares | Live |
| MECON INVESTMENT LIMITED | Private company limited by shares | Live |
| MECONOR (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| MECONTA COMPANY LIMITED | Private company limited by shares | Dissolved |
| MECO-PHOENIX LIMITED | Private company limited by shares | Live |
| MECOR LIMITED | Private company limited by shares | Live |
| MECOREX LIMITED | Private company limited by shares | Live |
| MECORP LIMITED | Private company limited by shares | Dissolved |