| ARGON LIMITED | Private company limited by shares | Dissolved |
| ARGON LIMITED | Private company limited by shares | Live |
| Argon 40 Limited | Private company limited by shares | Live |
| ARGON AD Limited | | Live |
| Argon (Asia) Limited | Private company limited by shares | Dissolved |
| ARGON BUSINESS HK LIMITED | Private company limited by shares | Live |
| Argon Consultancy Co Limited | Private company limited by shares | Live |
| ARGON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Argon & Co. Hong Kong Limited | | Live |
| Argon Medical Devices (Hong Kong) Company Limited | Private company limited by shares | Live |
| Argon Mode Limited | Private company limited by shares | Live |
| Argon Production Limited | Private company limited by shares | Dissolved |
| Argon 40 Technologies Limited | | Live |
| ARGON TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ARGON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ARGONAUT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ARGONAUT LP GAS LIMITED | Private company limited by shares | Dissolved |
| ARGONAUTS LIMITED | Private company limited by shares | Live |
| ARGONCE ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Nov-2014 |
| ARGONEMYTH CO., LIMITED | Private company limited by shares | Live |
| Argonium CC Capital Limited | | Live |