| DECA LIMITED | Private company limited by shares | Live |
| DECA (Asia) Limited | Private company limited by shares | Live |
| Deca Capital Limited | | Live |
| NEW DECADE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Decade IT Company Limited | Private company limited by shares | Live |
| CHOICE DECADE LIMITED | Private company limited by shares | Dissolved |
| Decade Digital Limited | Private company limited by shares | Live |
| GOLD DECADE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GRAND DECADE LIMITED | Private company limited by shares | Dissolved |
| POWER DECADE LIMITED | Private company limited by shares | Dissolved |
| SHINING DECADE LIMITED | | Live |
| SMART DECADE LIMITED | Private company limited by shares | Dissolved |
| WEALTHY DECADE LIMITED | Private company limited by shares | Dissolved |
| WORTHY DECADE LIMITED | Private company limited by shares | Live |
| DAILY DECADES LIMITED | Private company limited by shares | Live |
| GOLD DECADES LIMITED | Private company limited by shares | Live |
| Decagon HK Limited | Private company limited by shares | Live |
| Decagon Enterprise Limited | Private company limited by shares | Live |
| DECAGON (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |
| DECAL COMPANY LIMITED -THE- | Private company limited by shares | Live |
| CENTURY DECAL MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| SUPER DECAL PRINTING LIMITED | Private company limited by shares | Live |
| Q-ARTS DECAL PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| NEW SUNSHINE DECAL CO., LIMITED | Private company limited by shares | Live |
| Decalo Limited | Private company limited by shares | Live |
| DECALOG COMPANY LIMITED | Private company limited by shares | Dissolved |
| DECALOG HK LIMITED | Private company limited by shares | Dissolved |
| DECALOGUE LIMITED | | Live |
| DeCaMillenium (Hong Kong) Limited | | Live |
| Decamis Limited | Private company limited by shares | Live |
| DECAMMA SHIPPING LIMITED | Private company limited by shares | Dissolved |
| Decan Global Distribution Limited | Private company limited by shares | Live |
| Decan New Energy Industry Investment Limited | Private company limited by shares | Live |
| DECAN TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| Decan Investment Limited | Private company limited by shares | Live |
| TESSILE DECANO LIMITED | Private company limited by shares | Live |
| DECANTER LIMITED | Private company limited by shares | Dissolved |
| DECAPIO INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| DECAPITAL ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| DECAPOINT LIMITED | Private company limited by shares | Dissolved |
| DECAPOINT INDUSTRIAL LIMITED | Private company limited by shares | Live |
| LONGTU DECARATION CO., LIMITED | Private company limited by shares | Dissolved |
| DECARBON LIMITED | Private company limited by shares | Live |
| Decarbon Tech Limited | Private company limited by shares | Live |
| Decarbonable Technology Limited | | Live |
| Decare Technology Co., Limited | Private company limited by shares | Live |
| DECARICH LIMITED | Private company limited by shares | Dissolved |
| DECART DESIGN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| DECARVINGS Global Trading Co., Limited | Private company limited by shares | Live |
| DECAS ADVERTISING LIMITED | Private company limited by shares | Live |
| DECASSO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| DECATHLON LIMITED | Private company limited by shares | Dissolved |
| DECATHON LIMITED | Private company limited by shares | Dissolved |
| Decatron Innovation Limited | Private company limited by shares | Live |
| DECAVIEW LIMITED | Private company limited by shares | Dissolved |
| DECAWEALTH LIMITED | Private company limited by shares | Dissolved |
| DECAWIN LIMITED | Private company limited by shares | Dissolved |