| A.E.I. COMPANY LIMITED | Private company limited by shares | Dissolved |
| AGGRESSIVE (AEI) LIMITED | Private company limited by shares | Dissolved |
| ALTERNATIVE ENERGY INVESTMENTS (AEI) LIMITED | Private company limited by shares | Live |
| ALTERNATIVE ENERGY & INVESTMENTS (AEI) HOLDINGS LIMITED | Private company limited by shares | Live |
| AEIE HONGKONG LIMITED | Private company limited by shares | Live |
| AEIGHT LIMITED | Private company limited by shares | Live |
| Aeils Limited | | Live |
| AEIMEX LIMITED | Private company limited by shares | Live |
| AEIO EXPERIMENT COMPANY LIMITED | Private company limited by shares | Live |
| AEIOER TECHNOLOGY CO., LIMITED | | Live |
| AEIONS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| AEIOU HK LIMITED | Private company limited by shares | Dissolved |
| AEIVERET ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |