| HGV 10 Services Ltd | Administrative & support | 2020 |
| HGV 11 Services Ltd | Administrative & support | 2021 |
| HGV 12 Services Ltd | Administrative & support | 2020 |
| HGV Drive Ltd | Transport & logistics | 2017 |
| HGV Emergency Limited | Administrative & support | 2025 |
| HGY Global Ltd | Wholesale & retail | 2025 |
| HH Acquisitions Ltd | Real estate | 2020 |
| HH Apartments Ltd | Households | 2018 |
| HH Cardiff Ltd | Real estate | 2018 |
| HH Fractional a Limited | Professional & scientific | 2008 |
| HH Fractional AA Limited | Professional & scientific | 2016 |
| HH Fractional B Limited | Professional & scientific | 2008 |
| HH Fractional C Limited | Professional & scientific | 2008 |
| HH Fractional D Limited | Professional & scientific | 2009 |
| HH Fractional E Limited | Professional & scientific | 2009 |
| HH Fractional F Limited | Professional & scientific | 2009 |
| HH Fractional G Limited | Professional & scientific | 2009 |
| HH Fractional H Limited | Professional & scientific | 2010 |
| HH Fractional I Limited | Professional & scientific | 2010 |
| HH Fractional J Limited | Professional & scientific | 2010 |
| HH Fractional K Limited | Professional & scientific | 2010 |
| HH Fractional L Limited | Professional & scientific | 2010 |
| HH Fractional M Limited | Professional & scientific | 2010 |
| HH Fractional N Limited | Professional & scientific | 2010 |
| HH Fractional O Limited | Professional & scientific | 2011 |
| HH Fractional P Limited | Professional & scientific | 2011 |
| HH Fractional Q Limited | Professional & scientific | 2011 |
| HH Fractional S Limited | Professional & scientific | 2011 |
| HH Fractional T Limited | Professional & scientific | 2011 |
| HH Fractional U Limited | Professional & scientific | 2011 |
| HH Fractional V Limited | Professional & scientific | 2012 |
| HH Fractional W Limited | Professional & scientific | 2012 |
| HH Fractional Y Limited | Professional & scientific | 2013 |
| HH Fractional Z Limited | Professional & scientific | 2013 |
| HH Student Housing UK Ltd | Real estate | 2018 |
| HH14261141 Ltd | Real estate | 2022 |
| HH772 Ltd | Wholesale & retail | 2025 |
| HHC Marketing Limited | Professional & scientific | 2016 |
| HHH Recruitment Ltd | Administrative & support | 2020 |
| HHK Holdings Limited | Professional & scientific | 2014 |
| HHM Foods Limited | Wholesale & retail | 2024 |
| HHP Holdings Ltd | Financial services | 2024 |
| HHY Global Limited | Wholesale & retail | 2026 |
| HI & S Ltd | Administrative & support | 2006 |
| HI 5 Access Limited | Administrative & support | 2005 |
| HI Companies Limited | Wholesale & retail | 2025 |
| Hi-Cooler UK Limited | Manufacturing | 2023 |
| Hi-Miles Tyre Service Limited | Transport & logistics | 1978 |
| Hi-Tech Industrial Roofing Limited | Construction | 1990 |
| Hi-Vis Construction Ltd | Construction | 2015 |
| Hiab and Plant Transport UK Limited | Transport & logistics | 2012 |
| Hiabgo London Limited | Transport & logistics | 2026 |
| Hiace Property Co Limited | Real estate | 2018 |
| Hibba & Salar Enterprises Limited | Hospitality | 2013 |
| Hibernian Construction Ltd | Construction | 2015 |
| Hiboola Limited | Information & communication | 2018 |
| Hibyte Limited | Information & communication | 2021 |
| HIC Salta LLP | | 2024 |
| Hicking Financial Services Limited | Financial services | 2013 |
| Hickman Restaurants Ltd | Hospitality | 2023 |
| Hicks and Carter Electrical Ltd | Construction | 2012 |
| Hicks Titley Partnership Limited | Professional & scientific | 1999 |
| HICKS2 Studio Limited | Professional & scientific | 2023 |
| Hicloudy Ltd | Information & communication | 2023 |
| Hico Ltd. | Professional & scientific | 2018 |
| Hicom Enterprises Limited | Wholesale & retail | 2014 |
| Hicon Limited | Construction | 2003 |
| HID Corporation Limited | Manufacturing | 1998 |
| Hidden Beauty Group Ltd | Other services | 2020 |
| Hidden Cryptid Productions Ltd. | Arts & recreation | 2023 |
| Hiddenabilities Community Interest Company | Other services | 2020 |
| Hides Marine Limited | Construction | 2014 |
| Hidezen Ltd | Information & communication | 2025 |
| Hier Estates Limited | Construction | 2018 |
| Hierith Crop Nutrition (UK) Ltd | Extraterritorial | 2025 |
| Higga IT Solutions Ltd | Information & communication | 2025 |
| Higgins Geneva Ltd | Transport & logistics | 2020 |
| Higginson Mortgage Services Ltd | Financial services | 2009 |
| High Beeches Property Development Ltd | Construction | 2015 |
| High Blue Sky Tecnology Co., Ltd | Wholesale & retail | 2022 |
| High Contrast Productions Ltd | Information & communication | 2014 |
| High Court Recovery Limited | Extraterritorial | 2014 |
| High Demand Events Limited | Other services | 2019 |
| High Durability Trading Ltd | Manufacturing | 2025 |
| High END Carpentry Ltd | Construction | 2019 |
| High END Estate Group Limited | Real estate | 2019 |
| High END Property Investment Ltd | Real estate | 2022 |
| High END Tech Limited | Information & communication | 2026 |
| High Fidelity UX Ltd | Professional & scientific | 2019 |
| High Finance Investment Ltd | Professional & scientific | 2013 |
| High Five Loans Limited | Extraterritorial | 2011 |
| High Grove Property Solutions Ltd | Real estate | 2020 |
| High Line Maintenance Ltd | Manufacturing | 2022 |
| High Motive Limited | Information & communication | 2000 |
| High Pfeif Ltd | Information & communication | 2014 |
| High Profile Technologies Ltd | Professional & scientific | 2008 |
| High Rise Assets Ltd | Real estate | 2022 |
| High ST Property Investment Ltd | Real estate | 2006 |
| High Star Energy Ltd | Administrative & support | 2018 |
| High Steward of the Liberty of ST Edmund Limited | Other services | 2020 |