| H.Y.A International Co., Limited | Private company limited by shares | Live |
| H.YA INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| HYAB OSMOCURE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HYACINTH LIMITED | Private company limited by shares | Dissolved |
| HYACINTH HK LIMITED | Private company limited by shares | Dissolved |
| HYACINTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hyacinth Limited | Private company limited by shares | Live |
| HYACINTH CAPITAL LIMITED | Private company limited by shares | Dissolved |
| Hyacinth Trading Co., Limited | Private company limited by shares | Dissolved |
| HYACINTH CONSULT LIMITED | Private company limited by shares | Dissolved |
| Hyacinth Corporation Limited | Private company limited by shares | Live |
| HYACINTH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HYACINTH PAPER (HK) CO., LIMITED | Private company limited by shares | Live |
| HYACINTH HOME FASHION CO., LIMITED | Private company limited by shares | Live |
| Hyacinth Hong Kong Limited | Private company limited by shares | Live |
| Hyacinth International Limited | Private company limited by shares | Live |
| China Hyacinth International Limited | Private company limited by shares | Live |
| Hyacinth & Intl Limited | Private company limited by shares | Live |
| HYACINTH LOGISTICS LIMITED | Private company limited by shares | Live |
| HYACINTH PARTNERS LIMITED | Private company limited by shares | Dissolved |
| HYACINTH PARTNERS LIMITED | Private company limited by shares | Live |
| HYACINTH SERVICES CENTER FOR THE ELDERLY LIMITED | Company limited by guarantee | Live |
| HYACINTH STRATEGIES LIMITED | Private company limited by shares | Dissolved |
| HYACINTH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HYACINTH TRADING LIMITED | | Live |
| HYACINTHUS LIMITED | Private company limited by shares | Live |
| HYADES & CO. LIMITED | Private company limited by shares | Live |
| HYAKKA COMPANY LIMITED | Private company limited by shares | Live |
| HANKYU HANSHIN HYAKKATEN KABUSHIKI KAISHA LIMITED | Private company limited by shares | Live |
| HYAKUICHI KITEI LIMITED | | Live |
| HYAKUNEN INTERNATIONAL, LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Feb-2011 |
| Hyakunen Shokudo Limited | Private company limited by shares | Live |
| Hyakunousha International Limited | Private company limited by shares | Live |
| HYAKUNOUSHA TRADING (CHINA) LIMITED | | Live |
| CHINA HYAKUSAN ORE INDUSTRY GROUP HOLDING LIMITED | Private company limited by shares | Live |
| HYAKUSAN HK INVESTMENT LIMITED | Private company limited by shares | Live |
| HYALINE REALTY LIMITED | Private company limited by shares | Live |
| HYALINE SHIPPING (R. & D.) LIMITED | Private company limited by shares | Dissolved |
| HYALITE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hyaluron Pen Limited | Private company limited by shares | Live |
| HAN HYANG COMPANY LIMITED | Private company limited by shares | Dissolved |
| Kim Hyang Co., Limited | Private company limited by shares | Live |
| HYANG TRADE CO., LIMITED | Private company limited by shares | Live |
| SAM HYANG GLOBAL LIMITED | Private company limited by shares | Live |
| KO HYANG INVESTMENT LIMITED | Private company limited by shares | Live |
| HYANLINK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Korea Hyanmou Electrics Limited | Private company limited by shares | Live |
| HYANNIS LIMITED | Private company limited by shares | Dissolved |
| SHIU HYAP KEE LIMITED | Private company limited by shares | Dissolved |
| HYASAN CO., LIMITED | Private company limited by shares | Dissolved |
| HYASON COMMERCIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hyat Limited | Private company limited by shares | Live |
| HYATA INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| Grand Hyatt House Interior Design & Engineering Co. Limited | Private company limited by shares | Live |
| Hyatt Hotels Consultancy Services Asia Pacific Limited | Private company limited by shares | Live Ceased dormancy on 27-Oct-2014 |
| GRAND HYATT TRADING LIMITED | Private company limited by shares | Live |
| ZURICH TRADING (HYATT) LIMITED | Private company limited by shares | Dissolved |
| HyattPass Limited | | Live |
| HYATTSVILLE LIMITED | Private company limited by shares | Dissolved |