| ALCA LIMITED | Private company limited by shares | Dissolved |
| ALCA & CO. LIMITED | Private company limited by shares | Live |
| ALCACORPORATION LIMITED | Private company limited by shares | Live |
| ALCADENT LIMITED | Private company limited by shares | Live |
| Alcadex New Fireproof Material Co., Limited | Private company limited by shares | Live |
| ALCAFLEX TRADING COMPANY LIMITED | Private company limited by shares | Live |
| ALCALA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ALCALA, CHAN & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| ALCAN LIMITED | Private company limited by shares | Dissolved |
| ALCAN ALUMINIUM (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ALCAN ASIA LIMITED | Private company limited by shares | Live |
| ALCAN CONSTRUCTION MATERIALS LIMITED | Private company limited by shares | Live |
| Rio Tinto Alcan Trading Limited | Private company limited by shares | Live |
| ALCANCE Legal Consulting Services Limited | | Live |
| ALCANIC LIMITED | Private company limited by shares | Dissolved |
| ALCANNOX LIMITED | Private company limited by shares | Dissolved |
| ALCANTARA LIMITED | Private company limited by shares | Dissolved |
| Alcanzar Limited | Private company limited by shares | Live |
| Alcarbo Technologies Limited | | Live |
| ALCARDA TRADING COMPANY LIMITED | | Live |
| Alcarin Limited | Private company limited by shares | Dissolved |
| Alcat Limited | | Live |
| ALCATEL NETWORKS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ALCATHEA TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| ALCAVERA LIMITED | Private company limited by shares | Dissolved |
| ALCAWSER GROUP CO., LIMITED | Private company limited by shares | Live |
| ALCAYDE LIMITED | Private company limited by shares | Dissolved |
| ALCAZ COMPANY LIMITED | Private company limited by shares | Live |
| ALCAZAR LIMITED | Private company limited by shares | Dissolved |