| A-On Limited | Private company limited by shares | Live |
| A-ON JEWELLERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| AONA DESIGN LIMITED | Private company limited by shares | Live |
| AON-ALPHA CHINA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| AON-ALPHA CONSTRUCTION ( HONG KONG ) LIMITED | Private company limited by shares | Dissolved |
| HK AONASSIS ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| A-ONE COMPANY LIMITED | Private company limited by shares | Live |
| A-ONE & H COMPANY LIMITED | Private company limited by shares | Live |
| GC A-ONE LIMITED | Private company limited by shares | Live |
| A-ONE LIMITED | Private company limited by shares | Live |
| A-One Pro Limited | Private company limited by shares | Live |
| SHENZHEN AONE DIGITAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| A-ONEE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| AONELEADER LIMITED | Private company limited by shares | Live |
| AONEPRO INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| AONESY CO., LIMITED | Private company limited by shares | Live |
| A-ONETECH LIMITED | Private company limited by shares | Live |
| AONGHAIS LIMITED | | Live |
| AONIA LEADERSHIP AND MANAGEMENT HK LIMITED | Private company limited by shares | Live |
| HONGKONG AONING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG AONING (INT'L) GROUP LIMITED | Private company limited by shares | Live |
| AONIS HK LIMITED | Private company limited by shares | Live |
| AONIS IMP&EXP CO., LIMITED | | Live |
| AONISSIN (HONG KONG) LIMITED | Private company limited by shares | Live |
| AONITE LIMITED | Private company limited by shares | Live |
| Aonoco Limited | Private company limited by shares | Live |
| AONODA TRADE CO., LIMITED | Private company limited by shares | Live |
| AONOW INCORPORATION LIMITED | Private company limited by shares | Dissolved |
| AONUO LIMITED | Private company limited by shares | Live |
| AONY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK AONYSTAR CO., LIMITED | Private company limited by shares | Live |