| Hilton Design and Development Ltd | Wholesale & retail | 2004 |
| Hilton Harvey & Co Ltd | Administrative & support | 2025 |
| Hilton House Management Company Limited | Households | 2003 |
| Hilton Lane Management Company Limited | Real estate | 2015 |
| Hilton Leisure Ltd | Administrative & support | 2024 |
| Hilton Mailing Limited | Professional & scientific | 1981 |
| Hilton Properties (NW) Limited | Real estate | 2024 |
| Hilton Smythe Finance Limited | Financial services | 2017 |
| Hilton Smythe Limited | Professional & scientific | 2011 |
| Hilton Street Room Lettings Limited | Hospitality | 2025 |
| Hilton Trading Limited | Wholesale & retail | 2016 |
| Hilton Web Design Ltd | Professional & scientific | 2015 |
| Hiluv Ltd | Information & communication | 2025 |
| Hilyte Ltd | Hospitality | 2024 |
| HIM Industries Limited | Hospitality | 2026 |
| Himaaura Ltd | Manufacturing | 2026 |
| Himal Digital Ltd | Real estate | 2024 |
| Himalaya International Trading Co., Ltd. | Wholesale & retail | 2024 |
| Himalayan Crystals Ltd | Wholesale & retail | 2021 |
| Himalayan Estates Ltd | Real estate | 2025 |
| Himalayan Restaurant Brecon Limited | Hospitality | 2017 |
| Himalayan Salt Valley Ltd | Wholesale & retail | 2019 |
| Himaya Cybersecurity Ltd | Information & communication | 2025 |
| Himba Ltd | Construction | 2025 |
| Himillo Tour and Travel Limited | Administrative & support | 2025 |
| Himlify Limited | Wholesale & retail | 2024 |
| Himmat Care Ltd | Extraterritorial | 2021 |
| Himmerland Limited | Professional & scientific | 2018 |
| Himoon Ltd | Wholesale & retail | 2026 |
| Hina Medical Services Limited | Health & social care | 2022 |
| Hinaeyecare Limited | Wholesale & retail | 2023 |
| Hinchey Properties Limited | Real estate | 2024 |
| Hinckley & Hunt Executor Company Limited | Extraterritorial | 2003 |
| Hind Care Ltd | Health & social care | 2018 |
| Hindes-Boyd Properties Limited | Real estate | 2012 |
| Hindle Heights Limited | Other services | 2018 |
| Hindley Developments Ltd | Construction | 2020 |
| Hindsight Financial Limited | Other services | 2016 |
| Hindu Forum Britain | Other services | 2004 |
| Hindvalley Estates Limited | Real estate | 2020 |
| Hindvalley Ltd | Real estate | 2009 |
| Hindvalley Nominees Limited | Real estate | 2020 |
| Hindvalley Nominees NO 2 Limited | Real estate | 2020 |
| Hine Investments Ltd | Real estate | 2023 |
| Hine Nowsolutions & Testing Ltd | Professional & scientific | 2023 |
| Hines Realty Company Limited | Real estate | 2024 |
| Hines&Shine Ltd | Administrative & support | 2025 |
| Hing KAN Delivery Ltd | Transport & logistics | 2024 |
| Hingira Consult Limited | Real estate | 2015 |
| Hingston Company Limited | Information & communication | 2022 |
| Hinkzy Ltd | Wholesale & retail | 2026 |
| Hinn Enterprises Limited | Wholesale & retail | 2023 |
| Hinoka Limited | Wholesale & retail | 2025 |
| Hinoo Consulting Ltd | Health & social care | 2022 |
| Hinovus Ltd | Administrative & support | 2017 |
| Hinterland Sober Bar and Cafe CIC | Wholesale & retail | 2024 |
| Hiooz Lighting Co., Ltd | Manufacturing | 2024 |
| HIP Media Group Limited | Professional & scientific | 2014 |
| HIP212 Design and Sourcing Ltd | Wholesale & retail | 2019 |
| Hipartner Manufacturing (HK) Co., Limited | Extraterritorial | 2022 |
| Hipe Ltd | Real estate | 2021 |
| Hiphopmadness Ltd | Information & communication | 2017 |
| Hipilates Club Ltd | Arts & recreation | 2025 |
| Hipolito for General Trading Ltd | Wholesale & retail | 2025 |
| Hipp Hotel Limited | Real estate | 2022 |
| Hippi Bippi Ltd | Manufacturing | 2024 |
| Hippo Learning Innovation Ltd | Professional & scientific | 2024 |
| Hipps Shot Limited | Professional & scientific | 2023 |
| Hipster Burgers Ltd | Administrative & support | 2017 |
| Hipstersstudio Limited | Wholesale & retail | 2014 |
| Hiqit Ltd | Information & communication | 2021 |
| Hira Arif Ltd | Wholesale & retail | 2025 |
| Hira Company Limited(The) | Wholesale & retail | 1959 |
| Hird Rail Services Limited | Transport & logistics | 1996 |
| Hire ME Cars Ltd | Administrative & support | 2024 |
| Hire Sales Group Limited | Administrative & support | 2025 |
| Hired OUT Ltd | Extraterritorial | 2023 |
| Hirematch Ltd | Administrative & support | 2025 |
| Hiring Hunt Limited | Wholesale & retail | 2018 |
| Hiring Ideas Ltd | Information & communication | 2013 |
| Hiring Squad Ltd | Extraterritorial | 2023 |
| Hiro Medical Limited | Health & social care | 2024 |
| Hirondelle (UK) Ltd | Extraterritorial | 2008 |
| Hirsche Ltd | Wholesale & retail | 2023 |
| Hirst Footwear Limited | Wholesale & retail | 2004 |
| Hirst Group Properties Ltd | Real estate | 2021 |
| Hirst International Limited | Wholesale & retail | 2019 |
| Hirst Sandra Ltd | Extraterritorial | 2024 |
| HIS Future Minds Ltd | Extraterritorial | 2023 |
| HIS Grace & Mercy Ltd | Transport & logistics | 2025 |
| HIS Lifetime Ltd | Extraterritorial | 2022 |
| Hisaan Equine Ltd | Manufacturing | 2025 |
| Hisea Enterprise Ltd | Real estate | 2020 |
| Hisel Power Ltd | Construction | 2019 |
| Hisfame Limited | Information & communication | 2013 |
| Hisfame Outreach CIC | Education | 2020 |
| Hisham Noah for Trading Ltd | Wholesale & retail | 2025 |
| Hisn Majz Trading Ltd | Wholesale & retail | 2025 |
| Hissel Limited | Wholesale & retail | 2025 |
| Historic Holiday Homes Limited | Real estate | 2015 |