| A.I.O. Co. Limited | Private company limited by shares | Live |
| AIOCEAN LIMITED | Private company limited by shares | Live |
| AIOCO HK LIMITED | Private company limited by shares | Live |
| AIOH LIMITED | Private company limited by shares | Live |
| AIOimage Limited | Private company limited by shares | Dissolved |
| HK AIOLO LIMITED | Private company limited by shares | Live |
| AIOLOS SOLUTIONS LIMITED | | Live |
| AION LIMITED | Private company limited by shares | Live |
| Aion HC Limited | | Live |
| AION ADVISORY LIMITED | Private company limited by shares | Live |
| AETHER & AION LIMITED | | Live |
| AION CONSULTING PVT LIMITED | Private company limited by shares | Live |
| AION Machinary Corporation Limited | Private company limited by shares | Live |
| AION NEW ENERGY AUTOMOBILE CO., LIMITED | | Live |
| AION GLOBAL LIMITED | | Live |
| AION INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| AION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| AION HONGKONG LIMITED | Private company limited by shares | Dissolved |
| USA AION BIOTECH GROUP INC. LIMITED | Private company limited by shares | Dissolved |
| AION International Limited | | Live |
| AION MOTORS LIMITED | | Live |
| AION TECH (HK) LIMITED | Private company limited by shares | Live |
| AION TRADING CO., LIMITED | Private company limited by shares | Live |
| Aion Clover Trading Co., Limited | Private company limited by shares | Live |
| Cindy Pick Aionco Limited | | Live |
| AIONE Limited | Private company limited by shares | Live |
| AIONEWS LIMITED | | Live |
| Aionios Holding Limited | | Live |
| Aionious Capital Limited | Private company limited by shares | Live |
| AIONNET TELECOMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| AIONTECH CO. LIMITED | Private company limited by shares | Live |
| AIONY TRADING LIMITED | Private company limited by shares | Live |
| Aiooki Asia Pacific Co. Limited | Private company limited by shares | Live |
| AIOrange Technology Limited | | Live |
| HONG KONG AIORIA SPACE COMPANY LIMITED | Private company limited by shares | Live |
| AIOS LIMITED | Private company limited by shares | Dissolved |
| MMT AIOT LIMITED | Private company limited by shares | Live |
| AIOT LIMITED | | Live |
| HK AIoT Co., Limited | | Live |
| AIOT TECH LIMITED | Private company limited by shares | Live |
| AIOTA Electronics Limited | | Live |
| AIOU LIMITED | Private company limited by shares | Dissolved |
| AIOU AND CP EDUCATIONAL LIMITED | Private company limited by shares | Dissolved |
| AIOUNIA INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| AIOYA LIMITED | Private company limited by shares | Live |