| Name | Country | Market Cap (US$) |
|---|
| Hitachi AIC Inc. | Japan | Private |
| HITACHI CHEMICAL (SINGAPORE) PTE. LTD. | Singapore | Private |
| Hitachi Consumer Products (Malaysia) Sdn Bhd | Malaysia | Private |
| Hitachi Display Devices (Suzhou) Co. Ltd. | China | Private |
| HITACHI DISPLAY DEVICES,LTD. | Japan | Private |
| Hitachi Electronic Devices (Usa) Inc | United States | Private |
| HITACHI ELECTRONIC DISPLAY DEVICES (M) SDN BHD | Malaysia | Private |
| HITACHI FERRIGHT ELECTRONICS LTD. | Japan | Private |
| Hitachi Finance (UK) Plc | United Kingdom | Private |
| HITACHI HARAMACHI ELECTRONICS CO.,LTD. | Japan | Private |
| HITACHI HIGT-TECH DE TECHNOLOGY CO. LTD. | Japan | Private |
| HITACHI INDUSTRIAL TECHNOLOGY (THAILAND) LIMITED | Thailand | Private |
| Hitachi International (Holland) B.V. | Netherlands | Private |
| HITACHI JOEI TECH CO.,LTD. | Japan | Private |
| Hitachi Micro Devices Ltd. | Japan | Private |
| Hitachi Mobile Co., Ltd. | Japan | Private |
| HITACHI PRINTED WIRING BOARD SOLUTIONS CO.,LTD | Japan | Private |
| Hitachi Semiconductor (America) Inc. | United States | Private |
| Hitachi Semiconductor (M) Sdn. Bhd. | Malaysia | Private |
| HITACHI SEMICONDUCTOR SINGAPORE PTE. LTD. | Singapore | Private |
| Hitachi Techno Engineering Co., Ltd. | Japan | Private |
| HITACHI ULSI SYSTEMS CO.,LTD. | Japan | Private |
| HITECH ELECTRONICS | Republic of Ireland | Private |
| HK LAMINATION (M) SDN BHD | Malaysia | Private |
| HKC International (Shenzhen) Co., Ltd. | China | Private |
| HO WAH GENTING KINTRON SDN BHD | Malaysia | Private |
| Ho-Ping Power Company | Taiwan | Private |
| Hoffman Enclosures Inc. | United States | Private |
| Hoffmeier Industrieanlagen GmbH & Co. KG | Germany | Private |
| HOKKOH CO.,LTD. | Japan | Private |
| Hokubu Communication & Industrial Co | Japan | Private |
| HOKUDEN (MALAYSIA) SDN BHD | Malaysia | Private |
| HOKURIKU DENSHI K.K. | Japan | Private |
| HOKURIKUFUJI CO.,LTD. | Japan | Private |
| HOKUSHIN DENSHI K.K. | Japan | Private |
| HOKUSHIN, K.K. | Japan | Private |
| Hokuto Electronics Co., Ltd. | Japan | Private |
| Holophane Corporation | United States | Private |
| Homac Mfg Company Inc | United States | Private |
| Honeywell Advanced Circuits Inc. | United States | Private |
| Honeywell Electronic Materials Inc | United States | Private |
| HONEYWELL ELECTRONICS MATERIALS COMPANY | Thailand | Private |
| Honeywell Ltd. (Australia) | Australia | Private |
| Hong Bridge Trading Company Limited | Hong Kong | Private |
| Hongfutai Precision Electrons (Yantai) Co.,Ltd. | China | Private |
| Honko International Holdings Ltd | Bermuda | Private |
| Hoppecke Batterie Systeme GmbH | Germany | Private |
| HOSHIDEN NIIGATA K.K. | Japan | Private |
| HOSIDEN ELECTRONICS (MALAYSIA) SDN BHD | Malaysia | Private |
| HOSIDEN SEIKO CORPORATION | Japan | Private |
| HOSIDEN WAKAYAMA K.K. | Japan | Private |
| HOSONIC ELECTRONIC CO., LTD. | Taiwan | Private |
| Hospal-Gambro Ltee | Canada | Private |
| HOTLINE CPT LIMITED | India | Private |
| Hotset Heizpatronen und Zubehör GmbH | Germany | Private |
| Howard Industries Inc | United States | Private |
| Hoya Electronics Korea Co., Ltd. | South Korea | Private |
| HSD SPA | Italy | Private |
| HSIEN JINN INDUSTRY CORP. | Taiwan | Private |
| HST CO.,LTD. | Japan | Private |
| Htl Limited | India | Private |
| HTV - Halbleiter Test- und Vertriebsges. mbH | Germany | Private |
| HUA JUNG COMPONENTS CO., LTD. | Taiwan | Private |
| Huafei Colour Display Systems Co., Ltd | China | Private |
| Huafei Colour Display Systems Company Limited | China | Private |
| Huafeng Microline (Huizhou) Circuits Ltd. | China | Private |
| Huayi Elec. Apparatus Group Co., Ltd. | China | Private |
| Huayue Microelectronics Co., Ltd. | China | Private |
| Hubbell Caribe, Ltd | United States | Private |
| Hubbell Lighting, Inc | United States | Private |
| HUBBELL LTD | United Kingdom | Private |
| Huber + Suhner, Inc. | United States | Private |
| Huber Engineered Woods Llc | United States | Private |
| HÜCO electronic GmbH | Germany | Private |
| Hughes-Peters, Inc | United States | Private |
| Huipu Electronic (Shenzhen) Co.,Ltd. | China | Private |
| Huiyang Techwise Industrial Technology Co.,Ltd. | China | Private |
| Huizhou Chaoba Battery Co., Ltd. | China | Private |
| Huizhou Daya Bay Guanghong Electronics Co., Ltd. | China | Private |
| Huizhou Desay Battery Co., Ltd. | China | Private |
| Huizhou Dongyang Electronics Co., Ltd. | China | Private |
| Huizhou Meiyue Electronic Technology Co.,Ltd. | China | Private |
| Huizhou Shenghua Industrial Ltd. | China | Private |
| Huizhou Shin Heung Precision Co., Ltd. | China | Private |
| Huizhou TCL King High Frequency EL. Co., Ltd. | China | Private |
| Huizhou Uniplus Electronics Co., Ltd. | China | Private |
| Humanscale | United States | Private |
| HUMAX ELECTRONICS CO. LTD | United Kingdom | Private |
| Hunan Corun Hi-Tech Co., Ltd. | China | Private |
| Hunix Inc. | South Korea | Private |
| Hunter Technology Corporation | United States | Private |
| Hurst + Schröder GmbH | Germany | Private |
| Huurre Iberica, S.A. | Spain | Private |
| Hydrogen Burner Technology, Inc. | United States | Private |
| Hynix Semiconductor Deutschland GmbH | Germany | Private |
| Hynix Semiconductor Inc. | South Korea | Private |
| HYPERTAC SA | France | Private |
| Hypertronics Corporation | United States | Private |
| Hyundai Micro Electronics Co Ltd | South Korea | Private |
| I O Interconnect Ltd | United States | Private |
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