| FAST CASTLE LIMITED | Private company limited by shares | Live |
| CASTLE FINANCE INC LIMITED | Private company limited by shares | Live |
| FINE CASTLE LIMITED | Private company limited by shares | Live |
| CASTLE FINE LIMITED | Private company limited by shares | Live |
| FLOURISH CASTLE LIMITED | Private company limited by shares | Dissolved |
| FLOWERS CASTLE LIMITED | | Live |
| FORCE CASTLE LIMITED | Private company limited by shares | Live Ceased dormancy on 09-Jan-2018 |
| FORD CASTLE LIMITED | Private company limited by shares | Dissolved |
| CASTLE FORT LIMITED | Private company limited by shares | Live |
| FORTRESS CASTLE LIMITED | Private company limited by shares | Live |
| FORTUNE CASTLE LIMITED | Private company limited by shares | Dissolved |
| FORTUNE CASTLE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| FORTUNE CASTLE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| FORTUNE CASTLE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FORTUNE CASTLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| CASTLE FRANCO LIMITED | Private company limited by shares | Dissolved |
| CASTLE FRASER LIMITED | Private company limited by shares | Live |
| FRUIT CASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRUIT CASTLE LIMITED | Private company limited by shares | Live |
| Dragon Fruit Castle HK Limited | Private company limited by shares | Live |
| FULL CASTLE LIMITED | Private company limited by shares | Dissolved |
| FULL CASTLE LIMITED | Private company limited by shares | Live |
| FULL CASTLE ENGINEERING LIMITED | Private company limited by shares | Live |
| FULL CASTLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| CASTLE FURNITURE LIMITED | Private company limited by shares | Live |
| GAIN CASTLE LIMITED | Private company limited by shares | Dissolved |
| GAIN CASTLE LIMITED | Private company limited by shares | Dissolved |
| GAIN CASTLE LIMITED | Private company limited by shares | Dissolved |
| GAIN CASTLE LIMITED | Private company limited by shares | Live |
| GENERAL CASTLE LIMITED | Private company limited by shares | Live |
| GENESIS CASTLE LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Sep-2013 |
| Castle Giant Limited | | Live |
| SKY CASTLE GLASSWARE LIMITED | Private company limited by shares | Live |
| Glee Castle Limited | Private company limited by shares | Live |
| GLOBAL CASTLE LIMITED | Private company limited by shares | Live |
| SUN CASTLE GLOBAL LIMITED | Private company limited by shares | Live |
| Castle Global Limited | Private company limited by shares | Live |
| GLOBAL CASTLE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GOLD CASTLE GLOBAL LIMITED | Private company limited by shares | Live |
| GLOBAL GREEN CASTLE LIMITED | Private company limited by shares | Live |
| GLOBAL CASTLE INVESTMENT LIMITED | Private company limited by shares | Live |
| CASTLE GLOBAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CASTLE STAR GLOBAL LIMITED | Private company limited by shares | Dissolved |
| GLOBE WEALTH CASTLE LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS CASTLE LIMITED | Private company limited by shares | Live |
| GLORIOUS CASTLE LIMITED | | Live |
| GLORY CASTLE LIMITED | Private company limited by shares | Dissolved |
| GLORY CASTLE LIMITED | Private company limited by shares | Dissolved |
| CASTLE GLORY LIMITED | Private company limited by shares | Live |
| GLORY CASTLE LIMITED | Private company limited by shares | Live |
| GLORY CASTLE LIMITED | | Live |
| GLORY CASTLE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GLORY CASTLE TOYS LIMITED | Private company limited by shares | Dissolved |
| GOLD CASTLE LIMITED | Private company limited by shares | Dissolved |
| CASTLE GOLD LIMITED | Private company limited by shares | Live |
| NEW CASTLE GOLD LIMITED | Private company limited by shares | Live |
| GOLD CASTLE ENTERPRISES LIMITED | Private company limited by shares | Live |
| GOOD CASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOOD CASTLE LIMITED | Private company limited by shares | Live |
| GOOD CASTLE ENGINEERING LIMITED | Private company limited by shares | Live |
| GOOD FORTUNE CASTLE LIMITED | | Live |
| GOOD HABITS EDUCATION CASTLE LIMITED | Private company limited by shares | Live |
| GOOD CASTLE HOLDING LIMITED | Private company limited by shares | Live |
| GOOD CASTLE INVESTMENT LIMITED | Private company limited by shares | Live |
| GOOD WINES CASTLE LIMITED | Private company limited by shares | Live |
| GRACE CASTLE LIMITED | Private company limited by shares | Dissolved |
| GRACE CASTLE LIMITED | Private company limited by shares | Live |
| CASTLE GRACE LIMITED | Private company limited by shares | Live |
| GRAND CASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND CASTLE LIMITED | Private company limited by shares | Dissolved |
| GRAND CASTLE LIMITED | Private company limited by shares | Live |
| CASTLE GRAND LIMITED | | Live |
| CASTLE GREAT LIMITED | Private company limited by shares | Dissolved |
| CASTLE GREAT LIMITED | Private company limited by shares | Live |
| CASTLE GREAT LIMITED | Private company limited by shares | Live |
| GREATER CASTLE LIMITED | Private company limited by shares | Live |
| GREEN CASTLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| GREENISH CASTLE LIMITED | Private company limited by shares | Live |
| GROUP CASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CASTLE GROUP LIMITED | Private company limited by shares | Live |
| CASTLE GROUP LIMITED | Private company limited by shares | Live |
| GROUP CASTLE LIMITED | Private company limited by shares | Live |
| BEST CASTLE GROUP LIMITED | Private company limited by shares | Live |
| Castle Catering Group Limited | Private company limited by shares | Live |
| CHOCOLATE CASTLE GROUP LIMITED | Private company limited by shares | Live |
| GRAND CASTLE GROUP LIMITED | Private company limited by shares | Dissolved |
| CASTLE GROUP HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Castle Medical Group Limited | Private company limited by shares | Live |
| PEAK CASTLE GROUP LIMITED | Private company limited by shares | Dissolved |
| CASTLE POWER GROUP LIMITED | Private company limited by shares | Live |
| SPACE CASTLE GROUP LIMITED | Private company limited by shares | Live |
| HABILE CASTLE LIMITED | Private company limited by shares | Live |
| HAPPINESS CASTLE LIMITED | Private company limited by shares | Live |
| HAPPY CASTLE LIMITED | Private company limited by shares | Live |
| CASTLE HARVEST LIMITED | Private company limited by shares | Live |
| HARVEST CASTLE LIMITED | Private company limited by shares | Live |
| HARVEST CASTLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| HEALTH CASTLE LIMITED | Private company limited by shares | Live |
| HERO CASTLE LIMITED | Private company limited by shares | Live |
| HERO CASTLE INVESTMENT LIMITED | Private company limited by shares | Live |