| HI-SMART COMPANY LIMITED | Private company limited by shares | Live |
| HiSmart Choice Limited | | Live |
| HI-SMART TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HISMTEK (HK) ELECTRONIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TIEN HISNG TOURISM COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HISO ENTERTAINMENT LIMITED | | Live |
| HISO TECHNOLOGY COMPANY LIMITED | | Live |
| HISOA LIMITED | Private company limited by shares | Live |
| HK HISOA LIMITED | | Live |
| HISOA CONSULTANCY LIMITED | | Live |
| HISOA Group (Hong Kong) Limited | | Live |
| HISOA Industrial (Hong Kong) Limited | | Live |
| Hisoa International (Hong Kong) Limited | Private company limited by shares | Live |
| HISOA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| HISOA SPORTS LIMITED | | Live |
| HISOA TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HISOA ELECTRONIC TECHNOLOGY CO., LIMITED | | Live |
| HISOA TRADING LIMITED | | Live |
| HK HISOA TRADING LIMITED | | Live |
| GBL HISOAR LIMITED | Private company limited by shares | Dissolved |
| HISOAR GROUP CO., LIMITED | Private company limited by shares | Live |
| HONG KONG HISOAR SHOES COMPANY LIMITED | Private company limited by shares | Live |
| HI-SOCIETY BEAUTY SALOON LIMITED | Private company limited by shares | Dissolved |
| HiSoft Limited | Private company limited by shares | Live |
| HISOFT IT SEVER CO., LIMITED | Private company limited by shares | Live |
| HISOFT SOLUTION LIMITED | Private company limited by shares | Dissolved |
| HISOFT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Hisolar Group Limited | Private company limited by shares | Live |
| HISOLUTION TLC LIMITED | Private company limited by shares | Dissolved |
| HISONS LIMITED | Private company limited by shares | Live |
| HISOUND COMPANY LIMITED | Private company limited by shares | Dissolved |
| HI-SOUND ELECTRONIC INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| JIANGMEN HI-SOUND ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| HongKong Hisoundaudio Co., Limited | Private company limited by shares | Live |
| HI-SOUNDS TECHNOLOGY (HK) CO., LIMITED | | Live |
| HISOURCE LIMITED | Private company limited by shares | Dissolved |
| HISOURCE LIMITED | Private company limited by shares | Live |
| Hispachain Connection Supply Co., Limited | | Live |
| AGRO-EXPORT HISPANIA LIMITED | Private company limited by shares | Live |
| Hispania Investment Limited | Private company limited by shares | Live |
| BARLOVENTO HISPANIC SOCIETY LIMITED | Company limited by guarantee | Live |
| HISPANIC MARKETING (HK) LIMITED | Private company limited by shares | Dissolved |
| HISPANO-CATHAY LIMITED | Private company limited by shares | Dissolved |
| HI-SPARK LIMITED | Private company limited by shares | Dissolved |
| HISPE BOATS TECHNOLOGY&TRADE (HK) LIMITED | Private company limited by shares | Dissolved |
| Hi-Speed Centre 2 Limited | Private company limited by shares | Live |
| Hi-Speed Centre 1 Limited | Private company limited by shares | Live |
| Hi-Speed Centre 3 Limited | Private company limited by shares | Live |
| HI-SPEED SUPPLY CHAIN LIMITED | Private company limited by shares | Dissolved |
| Hi-Speed Supply Chain Limited | Private company limited by shares | Live |
| SD Hi-Speed Investment HK Limited | Private company limited by shares | Live |
| HI-SPEED KIOSKS LIMITED | Private company limited by shares | Dissolved |
| Hispeedcity.Com Limited | Private company limited by shares | Live |
| HISPER LIMITED | | Live |
| HiSports Industry Limited | Private company limited by shares | Live |
| Hispring Limited | | Live |
| HISRON IMP&EXP CO., LIMITED | Private company limited by shares | Live |
| HISSAN LIMITED | Private company limited by shares | Live |
| HISSETT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HISSHO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HISSO LIMITED | Private company limited by shares | Live |
| HISSON PLASTIC MACHINERY CO., LIMITED | Private company limited by shares | Live |
| HIST 0225 Company Limited | | Live |
| HISTA (HK) INDUSTRIAL & TRADING CO., LIMITED | Private company limited by shares | Live |
| HISTAND DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HISTAND HONGKONG TRADING CO., LIMITED | Private company limited by shares | Live |
| HISTANDARDS TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| HISTAR LIMITED | Private company limited by shares | Dissolved |
| HI-STAR KNITTING FACTORY LIMITED | Private company limited by shares | Dissolved |
| Histeel Industry Co., Limited | Private company limited by shares | Live |
| HISTEVEN LIMITED | Private company limited by shares | Live |
| HISTHERAPY Clinic Limited | Private company limited by shares | Live |
| HISTOL LIMITED | Private company limited by shares | Dissolved |
| HISTON INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| Histone Limited | | Live |
| H. K. HISTOPATHOLOGY SERVICES LIMITED | Private company limited by shares | Live |
| Historia Limited | Private company limited by shares | Live |
| Historic Company Limited | Private company limited by shares | Live |
| HISTORIC MOTOR SPORTS ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| Historic Enterprise Limited | Private company limited by shares | Live |
| HISTORIC FASHION LIMITED | Private company limited by shares | Live |
| HISTORIC STORE LIMITED | Private company limited by shares | Live |
| HISTORIC TRIUMPH LIMITED | Private company limited by shares | Live |
| HISTORY LIMITED | Private company limited by shares | Live |
| Centre for the History of the Book in China Limited -The- | Company limited by guarantee | Live |
| MIRROR FOR HISTORY LIMITED | | Live |
| Histream Limited | Private company limited by shares | Dissolved |
| HISTREAM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HISTRICT AIR AND SHIPPING (GROUP) LIMITED | Private company limited by shares | Dissolved |
| HISTRONG INVESTMENTS LIMITED | Private company limited by shares | Live |
| Hong Kong Design Histroy Network Limited | Company limited by guarantee | Live |
| hi-studio Limited | Private company limited by shares | Live |
| Histure International Limited | | Live |
| HISU TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HI-SUCCESS LIMITED | Private company limited by shares | Dissolved |
| HI-SUCCESS LIMITED | Private company limited by shares | Dissolved |
| HISUCCESS LIMITED | Private company limited by shares | Live |
| HI-SUCCESS DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| HISUMA GROUP LIMITED | Private company limited by shares | Live |
| HISUN AMERON COMPANY LIMITED | Private company limited by shares | Dissolved |