| CYGNUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Cygnus Asia Limited | Private company limited by shares | Live |
| Black Cygnus Limited | Private company limited by shares | Live |
| Cygnus Equity Brilliance Limited | | Live |
| CYGNUS CO., LIMITED | Private company limited by shares | Live |
| CYGNUS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| CYGNUS CORP. LIMITED | Private company limited by shares | Live |
| CYGNUS ELECTRONICS LIMITED | Private company limited by shares | Live |
| Cygnus Equity Limited | Private company limited by shares | Live |
| Cygnus Finance Limited | Private company limited by shares | Live |
| Gong Fu Cygnus Limited | Private company limited by shares | Live |
| CYGNUS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Cygnus Space (Hong Kong) Company Limited | | Live |
| CYGNUS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CYGNUS LIGHT LIMITED | Private company limited by shares | Dissolved |
| Cygnus Management Limited | Private company limited by shares | Live |
| CYGNUS RADIOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CYGNUS REPRESENTATION LIMITED | Private company limited by shares | Dissolved |
| CYGNUS SATELLITE LIMITED | Private company limited by shares | Dissolved |
| Cygnus IT Solutions HK Limited | Private company limited by shares | Live |
| CYGNUS TRADING CO., LIMITED | Private company limited by shares | Live |