| DAYAN CO., LIMITED | Private company limited by shares | Live |
| DAYAN (HONG KONG) ENTERTAINMENT LIMITED | | Live |
| DAYAN GROUP LIMITED | Private company limited by shares | Dissolved |
| DAYAN GROUP LIMITED | Private company limited by shares | Live |
| Dayan Industry Limited | Private company limited by shares | Live |
| DAYAN TECHNOLOGIES (HONG KONG) CO LIMITED | Private company limited by shares | Live |
| CHINA DAYAN INVESTMENTS MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| DAYAN TRADING LIMITED | | Live |
| DAYAN UNITED TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WACHI DAYAN LIMITED | Private company limited by shares | Dissolved |
| DAYANG ALUMINUM LIMITED | Private company limited by shares | Live |
| DAYANG CAPITAL LIMITED | Private company limited by shares | Dissolved |
| DAYANG JEWELRY COMPANY LIMITED | Private company limited by shares | Dissolved |
| DAYANG RENERGY LIMITED | Private company limited by shares | Dissolved |
| China Dayang International Trading Co., Limited | | Live |
| DAYANGHANG ALLIANCE (HK) LIMITED | Private company limited by shares | Live |
| DA-YAO JEWELLERY COMPANY LIMITED | Private company limited by shares | Live |
| DAYART INVESTMENTS LIMITED | Private company limited by shares | Live |
| DAYAS LIMITED | Private company limited by shares | Live |
| DAYAT OIL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Dayatte Limited | Private company limited by shares | Live |
| DaYau Group Limited | Private company limited by shares | Live |
| Dayawan China Resources Gas (Hong Kong) Limited | Private company limited by shares | Live |
| Association of Hong Kong Huizhou Dayawan Company Limited -The- | Company limited by guarantee | Live |
| DAYAZHOU ELECTRONICS ( HK ) LIMITED | Private company limited by shares | Dissolved |
| DAYBAT LIMITED | Private company limited by shares | Dissolved |
| WHHAN DAYBIOCHEM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK DAYBO CHINAWARE TECH. LIMITED | Private company limited by shares | Dissolved |
| DAYBO INVESTMENT LIMITED | Private company limited by shares | Live |
| New Daybreak Limited | Company limited by guarantee | Live |
| Daybreak Company Limited | Private company limited by shares | Live |
| Daybreak Group Limited | Private company limited by shares | Dissolved |
| DAYBREAK HIN03 LIMITED | | Live |
| DAYBREAK HIN04 LIMITED | | Live |
| DAYBREAK HIN05 LIMITED | | Live |
| DAYBREAK HIN06 LIMITED | | Live |
| DAYBREAK INTERACTIVE LIMITED | | Live |
| DAYBREAK RESOURCES LIMITED | Private company limited by shares | Live |
| Daybreak Service Limited | Private company limited by shares | Live |
| SUNNY DAYBREAK LIMITED | Private company limited by shares | Live |
| Daybreak Trade Limited | Private company limited by shares | Live |
| DAYBREAK JEWELRY TRADING CO. LIMITED | Private company limited by shares | Live |
| DAYCAST COMPANY LIMITED | Private company limited by shares | Dissolved |
| DAYCER LIMITED | Private company limited by shares | Dissolved |
| Daycheckout Network Technology Co., Limited | Private company limited by shares | Live |
| Daycheer Industrial Hongkong Limited | Private company limited by shares | Live |
| DAYCHOUE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Daycle Limited | Private company limited by shares | Live |
| DAYCO DYNAMICS LIMITED | Private company limited by shares | Dissolved |
| Dayco (Hong Kong) Limited | Private company limited by shares | Dissolved |
| DAYCO PACIFIC LIMITED | Private company limited by shares | Dissolved |
| DAYCO PRODUCTS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| DAYCO TRADE LIMITED | Private company limited by shares | Live |
| DAYCOME LIMITED | Private company limited by shares | Dissolved |
| DAY-DATE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| DayDawn Technology Limited | Private company limited by shares | Live |
| DAYDAY RED LIMITED | Private company limited by shares | Live |
| DAYDAYCHARGE LIMITED | Private company limited by shares | Live |
| DAYDAYGAME LIMITED | Private company limited by shares | Live |
| DAYDAYGOMALL LIMITED | Private company limited by shares | Live |
| daydayhappy technology HK Limited | | Live |
| Daydayorder.com Limited | Private company limited by shares | Dissolved |
| DAYDAYRED NETWORKS LIMITED | Private company limited by shares | Dissolved |
| DayDayScan Company Limited | Private company limited by shares | Live |
| DayDayTech Limited | | Live |
| DAYDAYTOP TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| DayDayYum Limited | | Live |
| DAYDOX ELECTRONICS LIMITED | Private company limited by shares | Live |
| DAYDREAM HK LIMITED | Private company limited by shares | Live |
| Daydream Pro Limited | | Live |
| DAYDREAMER NET LIMITED | Private company limited by shares | Dissolved |
| Daydreamer Limited | Private company limited by shares | Live |
| DAYDREAMER CARTOON ACADEMY LIMITED | Private company limited by shares | Dissolved |
| DAYDREAMER ANIMATIONS LIMITED | Private company limited by shares | Dissolved |
| DAYDREAMER ENTERPRISES LIMITED | Private company limited by shares | Live |
| DAYDREAMER INTERNATIONAL PTE LIMITED | Private company limited by shares | Live |
| DAYDREAMING LIMITED | Private company limited by shares | Dissolved |
| The Daydreaming Company Limited | | Live |
| DaydreamsFactory Limited | | Live |
| H.K DAYE DEVELOP LIMITED | Private company limited by shares | Dissolved |
| DAYE GROUP LIMITED | Private company limited by shares | Live |
| DAYE TRADE LIMITED | Private company limited by shares | Live |
| DAYEAR LIMITED | Private company limited by shares | Dissolved |
| DAYEAR ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| DAYEAR ELECTRONIC (HK) CO., LIMITED | Private company limited by shares | Live |
| Hong Kong DayeBainian Group Limited | Private company limited by shares | Live |
| DAYEH MOTION PICTURE INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| DA-YEH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Dayella Limited | Private company limited by shares | Live |
| DAYEONG ENERGY (HK) LIMITED | Private company limited by shares | Dissolved |
| DAYER INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| HK DAYEWANJIA ELECTRIC LIMITED | Private company limited by shares | Live |
| DAYFAIR COMPANY LIMITED | Private company limited by shares | Dissolved |
| DAYFINE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| DAYFLEX INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| DAYFLEX INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| DAYFLOW LIMITED | Private company limited by shares | Live |
| DAYFORD LIMITED | Private company limited by shares | Dissolved |
| DAYFORD LIMITED | Private company limited by shares | Live |
| DAYFORE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |