| DECORUM ENTERPRISE LIMITED | Private company limited by shares | Live |
| DECORUM GROUP LIMITED | Private company limited by shares | Live |
| DECORUM HOLDING LIMITED | Private company limited by shares | Dissolved |
| DECORUM PRINTING AND COMPANY LIMITED | Private company limited by shares | Dissolved |
| DECORUM TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIG DECORUMS INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| DECORUS HK LIMITED | Private company limited by shares | Live Commenced dormancy on 03-Mar-2014 |
| Decorus Concepts Limited | Private company limited by shares | Live |
| DECORWARE LIMITED | Private company limited by shares | Live |
| DECOS LIMITED | Private company limited by shares | Dissolved |
| Arting Decos Company Limited | | Live |
| DECOS CO., LIMITED | Private company limited by shares | Live |
| DECOSDIRECT OUTDOOR FURNITURE LIMITED | Private company limited by shares | Dissolved |
| DECOSTAR LIMITED | Private company limited by shares | Dissolved |
| DECOSTONE LIMITED | Private company limited by shares | Live |
| DECOSTYLE LIMITED | Private company limited by shares | Live |
| Decostyle Company Limited | | Live |
| Decotail Engineering Consultant Co. Limited | Private company limited by shares | Live |
| Decotec Limited | Private company limited by shares | Live |
| JINGLUE DECOTEC LIMITED | Private company limited by shares | Live |
| DECO-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| DecoTech Aluminum Co., Limited | Private company limited by shares | Live |
| KEY POINT DECOTEX LIMITED | Private company limited by shares | Dissolved |
| DECOTO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Decouart Limited | Private company limited by shares | Live |
| DECOUPAGE COMPANY LIMITED | Private company limited by shares | Live |
| DECOUPAGE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Decovibe Limited | Private company limited by shares | Live |
| DECOVU COMPANY LIMITED | Private company limited by shares | Live |
| DeCoWa Decorators Engineering (HK) Limited | Private company limited by shares | Live |
| Decowings Production Limited | Private company limited by shares | Live |
| DECOWIT LIMITED | Private company limited by shares | Dissolved |
| Decoworks Limited | Private company limited by shares | Live |
| Alan DecoWorks Limited | Private company limited by shares | Live |
| DECOWORKS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Decoy Trading Hong Kong Limited | Private company limited by shares | Live |
| DECPARJORDAE CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Decraft Co., Limited | Private company limited by shares | Live |
| DECRAFTIX LIMITED | Private company limited by shares | Live |
| DECRE COMPANY LIMITED | Private company limited by shares | Live |
| DeCreate Technology Limited | Private company limited by shares | Live |
| DeCreates Technology Limited | Private company limited by shares | Live |
| DECREDIA LIMITED | Private company limited by shares | Dissolved |
| GOLD DECREE (HK) INT'L FENG SHUI PLAN GROUP LIMITED | Private company limited by shares | Live |
| Decremus Trading Co., Limited | | Live |
| Decreo Limited | | Live |
| DECRIM LIMITED | Private company limited by shares | Dissolved |
| Decrita Limited | | Live |
| DECRO LIMITED | Private company limited by shares | Dissolved |
| DECROIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Decroly Education Investment Limited | Private company limited by shares | Live |
| DECROWN LIMITED | Private company limited by shares | Dissolved |
| Decrux HK Limited | Private company limited by shares | Live |
| Hong Kong Decryption Group Co., Limited | Private company limited by shares | Live |
| Feb Dec-sign Limited | Private company limited by shares | Live |
| D.E.C.T Production Limited | Private company limited by shares | Live |
| WING TAT DECT. ENG. CO. LIMITED | Private company limited by shares | Live |
| DECTEL ASIA LIMITED | Private company limited by shares | Dissolved |
| DECTON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| DEC-TUNE LIMITED | Private company limited by shares | Live |
| DECTUNE & HITOMI LIMITED | Private company limited by shares | Live |
| DECUBERTEN LIMITED | Private company limited by shares | Live |
| Decuple International Marketing Co., Limited | Private company limited by shares | Live |
| DECUS CAPITAL LIMITED | Private company limited by shares | Live |
| Decus Capital Group Limited | Private company limited by shares | Live |
| Derma Decus Group Limited | Private company limited by shares | Live |
| SHANGHAI DECWAY GROUP LIMITED | Private company limited by shares | Live |
| DecYi Kai Limited | Private company limited by shares | Live |