| ENNO LIMITED | Private company limited by shares | Live |
| ENNOBLE LIMITED | Private company limited by shares | Live |
| Ennocean Limited | | Live |
| ENNOCONN (HONG KONG) LIMITED | Private company limited by shares | Live |
| Ennofund Limited | Private company limited by shares | Live |
| ENNON WIN LIMITED | Private company limited by shares | Live |
| HK ENNOPLUS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| EnnoPure HK Limited | | Live |
| Hongkong EnnoTech Trading Management Limited | Private company limited by shares | Live |
| HONGKONG ENNOTECH TRADING MANAGEMENT LIMITED | Private company limited by shares | Live |
| ENNOTEK LIMITED | Private company limited by shares | Live |
| ENNOVA LIMITED | Private company limited by shares | Live |
| Ennovate Company Limited | Private company limited by shares | Live |
| IM POSSIBLE ENNOVATION LIMITED | Private company limited by shares | Live |
| En-Novelty Limited | | Live |
| Ennovor Co., Limited | Private company limited by shares | Live |
| e-NNOVVA Limited | Private company limited by shares | Dissolved |
| ENNOVY LIMITED | Private company limited by shares | Live |
| ENNOVY CAPITAL LIMITED | Private company limited by shares | Live |