| HISWAY HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| Hiswords Company Limited | Private company limited by shares | Live |
| HISWORLD LIMITED | Private company limited by shares | Live |
| HISYNERGI NUTRITION TECHNOLOGIES R&D LIMITED | Private company limited by shares | Live |
| H.I.T. Fitness Limited | Private company limited by shares | Live |
| HITA COMPANY LIMITED | Private company limited by shares | Dissolved |
| HITA LIMITED | | Live |
| Hita Catering Limited | | Live |
| HITA MACHINERY CO., LIMITED | | Live |
| Hita EdAi Limited | Private company limited by shares | Live |
| HITA INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| HITA INVESTMENT LIMITED | Private company limited by shares | Live |
| HITA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HITAC LIMITED | Private company limited by shares | Live |
| Hitac Group Limited | Private company limited by shares | Live |
| Hitac Group Limited | Private company limited by shares | Live |
| HITAC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HITAC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HITACCO ELECTRICAL MANUFACTORY COMPANY LIMITED | Private company limited by shares | Live |
| HITACHI AIR-CONDITIONING ELECTRIC (HK) INT'L LIMITED | Private company limited by shares | Dissolved |
| HITACHI AIR-CONDITIONING SYSTEMS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| HITACHI CABLE ASIA LIMITED | Private company limited by shares | Live |
| HITACHI ELECTRIC (CHINA) HOLDING LIMITED | Private company limited by shares | Dissolved |
| China Hitachi Lubricant Limited | Private company limited by shares | Live |
| HITACHI KOKI ASIA CO., LIMITED | Private company limited by shares | Live |
| HITACHI DATA SYSTEMS LIMITED | Private company limited by shares | Live |
| HITACHI FAR EAST LIMITED | Private company limited by shares | Dissolved |
| HITACHI EAST ASIA LIMITED | Private company limited by shares | Live |
| HITACHI ELECTRIC APPLIANCES INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HITACHI ELECTRIC SERVICE CO. (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Hitachi Electronics Limited | Private company limited by shares | Live |
| HK HITACHI SOLAR ENERGY GROUP LIMITED | Private company limited by shares | Dissolved |
| HITACHI ELEVATOR ENGINEERING COMPANY (HONG KONG) LIMITED | Private company limited by shares | Live |
| HITACHI FERRITE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hitachi Maxell Global Limited | Private company limited by shares | Live |
| Hitachi Group (China) Limited | | Live |
| HITACHI SUN (HK) GROUP TECH. LIMITED | Private company limited by shares | Dissolved |
| Hitachi Health (HongKong) Limited | | Live |
| HITACHI HIGH-TECHNOLOGIES HONG KONG LIMITED | Private company limited by shares | Live |
| HITACHI LEASING (H.K.),LIMITED | Private company limited by shares | Dissolved |
| HITACHI METALS ADMET HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HITACHI (HONG KONG) LIMITED | Private company limited by shares | Live |
| HITACHI CAPITAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| Hitachi Urban Investment (Hong Kong), Limited | Private company limited by shares | Live |
| HITACHI METALS HONG KONG LIMITED | Private company limited by shares | Live |
| HITACHI INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| ASIA HITACHI LIFT HOLDING (CHIAN) LIMITED | Private company limited by shares | Live |
| Hitachi Capital Management (China) Limited | Private company limited by shares | Live |
| HITACHI AUTOMOBILE APPLIANCES SALES CO. (SOUTH-EAST) LIMITED | Private company limited by shares | Dissolved |
| HITACHI TRAVEL AGENCY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HITACHI ZOSEN COMPANY (HK) LIMITED | Private company limited by shares | Live |
| HITACHI-ELESONIC (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Hitachino HK Brewery Limited | Private company limited by shares | Live |
| Hitachino HK Trading Limited | Private company limited by shares | Live |
| HI-TACTICS INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| hi-TAG Limited | Private company limited by shares | Live |
| HK HITAI TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Hong Kong Hitai Group Investment Limited | Private company limited by shares | Live |
| HONGKONG HITAI INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| HITAI INTERNATIONAL TRADING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| HITAI TRADING LIMITED | Private company limited by shares | Live |
| HI-TAK INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HITAKA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HITAKACHO JAPANESE RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| HITAKO LIMITED | Private company limited by shares | Live |
| HI-TALENT LIMITED | Private company limited by shares | Dissolved |
| HITALL GROUP LIMITED | Private company limited by shares | Live |
| HITAMIN LIMITED | Private company limited by shares | Dissolved |
| HITANA LIMITED | Private company limited by shares | Live |
| HITANACE LIMITED | Private company limited by shares | Dissolved |
| HITANIC TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HITARGET LIMITED | Private company limited by shares | Live |
| HITARGET GLOBAL COMPANY LIMITED | Private company limited by shares | Live |
| HITARGET HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| HITARGET HONG KONG LIMITED | Private company limited by shares | Live |
| HITARI LIMITED | Private company limited by shares | Dissolved |
| HI-TASTE GROUP LIMITED | Private company limited by shares | Dissolved |
| HI-TASTE SEAFOOD CO., LIMITED | Private company limited by shares | Live |
| HITASYS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HI-TAT MANUFACTORY LIMITED | Private company limited by shares | Live |
| HITAT SECRETARIAL LIMITED | Private company limited by shares | Live |
| HITBAG LIMITED | Private company limited by shares | Live |
| HITBERT LIMITED | Private company limited by shares | Live |
| British HITBLT Lubricant Co., Limited | Private company limited by shares | Dissolved |
| HITBOX (HONG KONG) LIMITED | Private company limited by shares | Live |
| HITBUY LIMITED | Private company limited by shares | Live |
| HITC LIMITED | Private company limited by shares | Live |
| HITC (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Schmidt HITC Limited | Private company limited by shares | Live |
| Hitcell Limited | Private company limited by shares | Live |
| HITCH COMPANY LIMITED | Private company limited by shares | Live |
| HITCH INC LIMITED | Private company limited by shares | Live |
| Hitchance Asia & Pacific Limited | Private company limited by shares | Live |
| HitChat Limited | | Live |
| HITCHBIRD LIMITED | Private company limited by shares | Live |
| HITCHBOND LIMITED | Private company limited by shares | Live |
| HITCHED COMPANY LIMITED | Private company limited by shares | Live |
| HITCHEN ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| HITCHIN INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| HITCHMAN LIMITED | Private company limited by shares | Dissolved |