| STARK CYGG CPA LIMITED | Private company limited by shares | Live |
| CYGLADE LIMITED | Private company limited by shares | Dissolved |
| CYGNA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CYGNE APPAREAL LIMITED | Private company limited by shares | Dissolved |
| CYGNE FAR EAST LIMITED | Private company limited by shares | Dissolved |
| HONGKONG BLACK CYGNE FASHION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| CYGNE GROUP (F.E.) LIMITED | Private company limited by shares | Dissolved |
| CYGNE INTERNATIONAL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CYGNE NOIR LIMITED | Private company limited by shares | Live |
| CYGNET LIMITED | Private company limited by shares | Live |
| Cygnett HK Limited | Private company limited by shares | Live |
| CYGNIX LIMITED | Private company limited by shares | Dissolved |
| 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 |
| CYGONKA LIMITED | Private company limited by shares | Dissolved |
| CYGOU LIMITED | | Live |