| Heat-Tec 2000 Limited | Construction | 1998 |
| Hebei Beinafu Childrens Products Co., Ltd | Manufacturing | 2022 |
| Hebei Besster Glass and Mirror Co., Ltd. | Professional & scientific | 2020 |
| Hebei Cangrun Pipeline Equipment Co., Ltd | Manufacturing | 2022 |
| Hebei Distributions Co., Ltd | Manufacturing | 2022 |
| Hebei Fobearings Trading Co., Ltd | Extraterritorial | 2020 |
| Hebei Huike Steel Pipes Co., Ltd | Manufacturing | 2023 |
| Hebei Inluck Trading Co., Ltd | Wholesale & retail | 2025 |
| Hebei Jiahang Packing Co., Ltd | Professional & scientific | 2014 |
| Hebei Kaixuan Industrial Co., Ltd | Extraterritorial | 2021 |
| Hebei Lunxing New Material Technology Co., Ltd | Wholesale & retail | 2023 |
| Hebei Shenghua Industry Co., Ltd | Manufacturing | 2019 |
| Hebei Sooin Trade Co., Ltd | Extraterritorial | 2023 |
| Hebei Star Import & Export Co., Ltd | Manufacturing | 2023 |
| Hebei Tobee Pump Co., Limited | Extraterritorial | 2023 |
| Hebei XIE CHU Import & Export Co., Ltd | Extraterritorial | 2018 |
| Hebei Yadu Pipeline Equipment Group Co., Ltd. | Manufacturing | 2015 |
| Hebei Yicheng Technology Co., Ltd | Extraterritorial | 2019 |
| Hebei Zb-Gamay Biological Technology Co., Ltd | Extraterritorial | 2023 |
| Hebei Zhaokun Trade Co., Ltd | Extraterritorial | 2023 |
| Hebnar Pneu Tover Ltd | Extraterritorial | 2015 |
| Heckford House Ltd | Extraterritorial | 2016 |
| Hecor Indoor Space Technology Co., Ltd | Extraterritorial | 2025 |
| Hector Consultancy Limited | Administrative & support | 2017 |
| HED Ventures Limited | Extraterritorial | 2011 |
| Heibai Co., Ltd | Wholesale & retail | 2024 |
| Heigham Ltd | Financial services | 2025 |
| Helen Marine Service Co., Ltd | Manufacturing | 2024 |
| Helios Power Ltd | Extraterritorial | 2013 |
| Helloworld Trading Ltd | Wholesale & retail | 2024 |
| Hellum Trading Limited | Administrative & support | 2007 |
| Hemao Cooperation Limited | Manufacturing | 2025 |
| HEN DEI Co., Limited | Extraterritorial | 2019 |
| Henan Decent Metal Material Co., Ltd | Wholesale & retail | 2023 |
| Henan Huaxing Machinery Equipment Co., Limited | Wholesale & retail | 2020 |
| Henan Jincheng Filter Equipment Co., Ltd | Extraterritorial | 2024 |
| Henan Xianghe Health Materials Co., Ltd | Manufacturing | 2026 |
| Henan Yirui Chem Co., Ltd. | Mining & quarrying | 2024 |
| Hencare Biopharma Research Limited | Manufacturing | 2026 |
| Hencodes Technology Co., Ltd | Extraterritorial | 2023 |
| Henda Building Material Co., Ltd | Extraterritorial | 2023 |
| Hengsheng Machinery Limited | Extraterritorial | 2019 |
| Hengtong Auto Parts Co., Ltd | Wholesale & retail | 2023 |
| Hengtong Science Technology Limited | Extraterritorial | 2017 |
| Hengxin Development Technology Co., Ltd. | Wholesale & retail | 2021 |
| Hengxing Machinery Co., Ltd | Manufacturing | 2023 |
| Hengxing Minerals Co., Limited | Extraterritorial | 2020 |
| Hengya Wire Mesh Co., Limited | Extraterritorial | 2020 |
| Hengyun New Materials Co., Ltd. | Wholesale & retail | 2021 |
| Henridol International Limited | Extraterritorial | 2022 |
| Henry Tobias Jones Ltd | Information & communication | 2020 |
| Hepac Limited | Extraterritorial | 2018 |
| Hepburn Fashion UK Ltd | Manufacturing | 2022 |
| Hepdon Mews (Tooting) Management Company Limited | Households | 2011 |
| Heprevive Limited | Health & social care | 2010 |
| HER Invitation Ltd | Health & social care | 2018 |
| Herb and Dahlia Limited | Agriculture & fishing | 2024 |
| Herb Defence Professional Limited | Extraterritorial | 2018 |
| Herbal Source Limited | Health & social care | 2005 |
| Here Group Limited | Extraterritorial | 2019 |
| Heritagecareuk Ltd | Health & social care | 2020 |
| Heriter Filter Co., Ltd | Extraterritorial | 2017 |
| Herman Owen Precision Engineering Limited | Manufacturing | 2021 |
| Hermes Technology Co., Limited | Manufacturing | 2013 |
| Hesai Chemicals Co., Ltd. | Extraterritorial | 2021 |
| Hesheng International Marine Limited | Extraterritorial | 2017 |
| Hesheng Marine Service Co., Ltd | Manufacturing | 2024 |
| Hesperos Choir CIC | Arts & recreation | 2021 |
| HET Global Ltd | Extraterritorial | 2014 |
| Hetong Limited | Information & communication | 2021 |
| Heusdevries Co., Ltd | Wholesale & retail | 2025 |
| Hewe Controls Limited | Extraterritorial | 2019 |
| Hewitt Denim Limited | Manufacturing | 2023 |
| Hewitt Denim Mills Limited | Administrative & support | 2008 |
| HEX Trading Ltd | Wholesale & retail | 2026 |
| Hexin Clean Electric Appliance Co., Limited | Extraterritorial | 2021 |
| Hextable Limited | Households | 2016 |
| Heyi International Trading Co., Limited | Extraterritorial | 2019 |
| HF Jose and Soni Co., Ltd. | Extraterritorial | 2018 |
| HFS Customs Limited | Administrative & support | 2020 |
| HG Industry Group Ltd | Wholesale & retail | 2014 |
| Hgbu Trading Limited | Extraterritorial | 2019 |
| HGT Group Limited | Extraterritorial | 2025 |
| HHD Development Co., Ltd | Wholesale & retail | 2014 |
| Hhpld Global Limited | Other services | 2016 |
| HI Consulting Group Limited | Administrative & support | 2025 |
| Hi-Tech International Trading Co., Ltd | Wholesale & retail | 2023 |
| HI5 London Builders Ltd | Construction | 2020 |
| Hiber Ocean Limited | Wholesale & retail | 2024 |
| Hicustom Limited | Wholesale & retail | 2025 |
| Hidarl Ltd | Wholesale & retail | 2014 |
| Hidden Art Cave Limited | Arts & recreation | 2024 |
| Hiddengemdesign Limited | Professional & scientific | 2013 |
| Hidiy Co., Ltd | Extraterritorial | 2021 |
| Hifancy Ltd | Wholesale & retail | 2023 |
| High Hope Int'L Group Native Produce IMP and EXP Co., Limited | Extraterritorial | 2018 |
| High Stakes Films Ltd | Information & communication | 2026 |
| High Street (Banstead) Management Company Limited | Households | 2002 |
| Highbroom Consultancy Limited | Professional & scientific | 2008 |
| Highcliffe (Beckenham) Limited | Households | 1989 |