| BIOGEN COMPANY LIMITED | Private company limited by shares | Live |
| BIOGEN GLOBAL LIMITED | Private company limited by shares | Live |
| Biogen Hong Kong Limited | Private company limited by shares | Live |
| Biogen Idec (Hong Kong) Limited | Private company limited by shares | Live |
| BIOGENCY PTY LIMITED | | Live |
| BIO-GENE LIMITED | Private company limited by shares | Live |
| BIO-GENE HEALTHCARE LIMITED | Private company limited by shares | Live |
| BIO-GENERICS LIMITED | Private company limited by shares | Live |
| HONGKONG BIOGENES INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| BIO-GENESIS LIMITED | Private company limited by shares | Dissolved |
| HK BIOGENESIS TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| Biogenesis Healthcare Limited | Private company limited by shares | Live |
| BioGenesis Medical Company Limited | Private company limited by shares | Live |
| BIOGENET COMPANY LIMITED | Private company limited by shares | Dissolved |
| Biogenetics Limited | Private company limited by shares | Live |
| Biogen.io Limited | Private company limited by shares | Live |
| R & C BIOGENIUS LIMITED | Private company limited by shares | Live |
| Biogens International Limited | Private company limited by shares | Dissolved |