| AAC1 Company Limited | Private company limited by shares | Live |
| AAC2 Company Limited | Private company limited by shares | Live |
| aacat Technology Limited | | Live |
| AACC Group Limited | Private company limited by shares | Live |
| AAC-CONSULT LIMITED | Private company limited by shares | Dissolved |
| AACG LIMITED | Private company limited by shares | Dissolved |
| AACHEN LIMITED | Private company limited by shares | Dissolved |
| Aachen Metal Casting (Asia) Limited | Private company limited by shares | Live |
| AaChen Connect Co., Limited | Private company limited by shares | Live |
| Hong Kong Aachen Trading Co., Limited | Private company limited by shares | Live |
| AACHEN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Aachen Optoelectronic Technology Co., Limited | Private company limited by shares | Live |
| AACHEN COMMERCE LIMITED | Private company limited by shares | Live |
| AACHEN (ASIA PACIFIC) CONSULTANTS LIMITED | Private company limited by shares | Live |
| AaChen Technology Development Corporation Limited | Private company limited by shares | Live |
| AACHEN INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| AACHI KONG LIMITED | Private company limited by shares | Dissolved |
| AACO AVANT SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| AACOM LIMITED | Private company limited by shares | Dissolved |
| AACOM ADVANCED AUTOMATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| AACOT ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| AACP CO LIMITED | Private company limited by shares | Live |
| AACS (HK) INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| AACURAPID (HONG KONG) LIMITED | Private company limited by shares | Live |