| HYLA LIMITED | Private company limited by shares | Live |
| HYLA ASIA LIMITED | Private company limited by shares | Live |
| HYLA ENVIRONMENTAL CLEANING LIMITED | Private company limited by shares | Dissolved |
| HYLA HONG KONG GROUP LIMITED | Private company limited by shares | Dissolved |
| HYLA (HONG KONG) LIMITED | Private company limited by shares | Live |
| HYLAB TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HYLAKE LIMITED | Private company limited by shares | Live |
| HYLAND COMPANY LIMITED | Private company limited by shares | Live |
| HYLAND COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYLAND DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| HYLAND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HYLANDER LIMITED | Private company limited by shares | Dissolved |
| HYLANDTIRE LIMITED | Private company limited by shares | Live |
| Hylas Technology Limited | Private company limited by shares | Dissolved |
| HYLAX TECH CO., LIMITED | Private company limited by shares | Live |
| HYLICO LIMITED | Private company limited by shares | Dissolved |
| HYLIGHT INDUSTRY GROUP LIMITED | Private company limited by shares | Live |
| HYLIK LIMITED | Private company limited by shares | Live |
| HYLING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYLINK EDUCATION LIMITED | Private company limited by shares | Dissolved |
| HY-LINK NETWORK LIMITED | Private company limited by shares | Dissolved |
| HYLINTEK LIMITED | Private company limited by shares | Live |
| Hylion Webbing Product Co., Limited | Private company limited by shares | Live |
| HYLITHO INDUSTRIAL CO., LIMITED | | Live |
| Hylix Energy Co., Limited | | Live |
| HYLIZE TECHNOLOGY LIMITED | | Live |
| HYLK Engineering Limited | | Live |
| Hyllenberg Asia Limited | Private company limited by shares | Dissolved |
| Hyllers Limited | Private company limited by shares | Live |
| Hyllhy Limited | | Live |
| HYLOC CONSULT & TRADING LIMITED | Private company limited by shares | Dissolved |
| Hyloc Consult & Trading Limited | Private company limited by shares | Live |
| Hylog Company Limited | Private company limited by shares | Live |
| GLOBAL HYLOGISTICS CO., LIMITED | Private company limited by shares | Live |
| HYLON LIMITED | Private company limited by shares | Live |
| SHANDONG HYLONG ALUMINIUM CO., LIMITED | Private company limited by shares | Live |
| HyLongfar Technology Limited | | Live |
| HYLTEX LIMITED | Private company limited by shares | Dissolved |
| HYLTON INVESTMENT LIMITED | Private company limited by shares | Live |
| HYLY (HK) FINANCIAL LEASING CO., LIMITED | Private company limited by shares | Live |
| HYMAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hyman Co., Limited | Private company limited by shares | Dissolved |
| Ging & Hyman Consulting Limited | Private company limited by shares | Live |
| HYMAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HYMAN GROUP LIMITED | Private company limited by shares | Live |
| HOPPE HYMAN LIMITED | Private company limited by shares | Dissolved |
| HYMAN PRODUCTS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HYMARI.COM LIMITED | Private company limited by shares | Dissolved |
| HYMAX LIMITED | Private company limited by shares | Live |
| HYME PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| HYMERA LIMITED | Private company limited by shares | Dissolved |
| HYMET LIMITED | | Live |
| HYMETRY COMPANY LIMITED | Private company limited by shares | Live |
| HYMETTUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hyming Technology(HongKong)Co., Limited | Private company limited by shares | Live |
| Hymlove Limited | Private company limited by shares | Live |
| SHEN ZHEN HYMN DIGITAL IMAGE CO., LIMITED | Private company limited by shares | Live |
| Hymn Consulting Management Limited | Private company limited by shares | Live |
| HYMN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Lee Hymn (HK) Consultancy Limited | Private company limited by shares | Live |
| Australia (Hong Kong) International Daisy Chain hymn United Group Co., Limited | Private company limited by shares | Dissolved |
| Hymn Image (HongKong) Co., Limited | Private company limited by shares | Live |
| HYMN INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAIN HYMN LIMITED | Private company limited by shares | Live |
| MELODY HYMN LIMITED | Private company limited by shares | Live |
| MUSIC HORIZON HYMN LIMITED | Private company limited by shares | Live |
| HONG KONG HYMN SOCIETY LIMITED | Company limited by guarantee | Live |
| HYMN TRADING LIMITED | Private company limited by shares | Dissolved |
| Hito Hymn Trading Company Limited | Private company limited by shares | Live |
| LE HYMNE LIMITED | Private company limited by shares | Dissolved |
| LE HYMNE LIMITED | Private company limited by shares | Live |
| FRANCE HYMNIA COSMETICS CO., LIMITED | Private company limited by shares | Live |
| Hymns Leader Optical Limited | Private company limited by shares | Live |
| Hymn's Paradise Company Limited | Private company limited by shares | Live |
| HYMNSONS TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYMO HK LIMITED | Private company limited by shares | Dissolved |
| HYMSUN LIMITED | Private company limited by shares | Dissolved |
| HYMUX CORPORATION LIMITED | Private company limited by shares | Dissolved |
| HYMY LIMITED | | Live |
| Hynatech LED Lighting Limited | Private company limited by shares | Live |
| HYNAUT LIMITED | | Live |
| HYNDLAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| HYNDMAN LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU HYNEDA LOGISTIC CO., LIMITED | | Live |
| Hyner (Hong Kong) Limited | Private company limited by shares | Live |
| HY-NET COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYNEX COMPANY LIMITED | Private company limited by shares | Live |
| Hynex Investment Co. Limited | Private company limited by shares | Live |
| HYNICOX CO., LIMITED | Private company limited by shares | Live |
| HYNIN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HYNK INSTRUMENTS LIMITED | Private company limited by shares | Live |
| HYNZ Limited | | Live |
| HYOCH ELECTRONICS LIMITED | Private company limited by shares | Live |
| Hyocloud Limited | Private company limited by shares | Live |
| HYOJOO Limited | Private company limited by shares | Live |
| HYOJUNG CULTURE LIMITED | Private company limited by shares | Live |
| HYO.MH COMPANY LIMITED | Private company limited by shares | Live |
| HYONE HK LIMITED | Private company limited by shares | Live |
| HYOOER COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYOSICA INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |