| Hike Yorkshire Ltd | Administrative & support | 2025 |
| Hikon Digital Ltd | Professional & scientific | 2020 |
| Hikon Limited | Information & communication | 2018 |
| Hilarian Ltd | Real estate | 2017 |
| Hilary's Cafe Ltd | Hospitality | 2023 |
| Hilclare Limited | Manufacturing | 2014 |
| Hilda Health Care Ltd | Health & social care | 2019 |
| Hildenborough Properties Limited | Extraterritorial | 2022 |
| Hill & West Investments Ltd | Administrative & support | 2024 |
| Hill Brown Construction Ltd | Construction | 2019 |
| Hill Harris & Houghton Limited | Professional & scientific | 2013 |
| Hill Homes (Alwoodley) Ltd | Construction | 2017 |
| Hill Homes (Bagby) Limited | Construction | 2020 |
| Hill Homes (Coxwold) Ltd | Construction | 2013 |
| Hill Homes (Great Broughton) Ltd. | Real estate | 2001 |
| Hill Homes (Green Hammerton NO 4 Ltd | Construction | 2004 |
| Hill Homes (Green Hammerton NO1 Ltd | Construction | 2014 |
| Hill Homes (Hawthorn Grove) Ltd | Construction | 2013 |
| Hill Homes (Husthwaite) Ltd | Construction | 2018 |
| Hill Homes (Hutton Rudby) Ltd | Construction | 2011 |
| Hill Homes (Kirby Fleetham) Ltd | Construction | 2020 |
| Hill Homes (Little Ribston) Limited | Construction | 2020 |
| Hill Homes (Marton LE Moor) Ltd | Construction | 2019 |
| Hill Homes Holdings Limited | Construction | 2014 |
| Hill Lawrence Environmental Limited | Professional & scientific | 2007 |
| Hill Lawrence Limited | Professional & scientific | 2004 |
| Hill Management Consulting Ltd | Professional & scientific | 2019 |
| Hill Top Property Services Limited | Real estate | 2021 |
| Hill Woods Medical Media Ltd | Information & communication | 2011 |
| Hillam Build Limited | Construction | 2021 |
| Hillam Contracts Limited | Construction | 2021 |
| Hillam Developments Limited | Construction | 2026 |
| Hillam Properties Limited | Real estate | 2016 |
| Hillbeck Homes (Almondbury) Ltd | Construction | 2024 |
| Hillbeck Homes (Copley) Ltd | Construction | 2024 |
| Hillbeck Management Ltd | Construction | 2020 |
| Hillcrest Court Company Limited | Households | 2008 |
| Hillcrest Rawdon Management Company (NO.1) Limited | Real estate | 2003 |
| Hillcrest Rawdon Management Company (NO.2) Limited | Real estate | 2003 |
| Hillcrest Rise Management Company Limited | Households | 1972 |
| Hillcroft Management Limited | Households | 1993 |
| Hilldene Holdings Limited | Real estate | 2010 |
| Hillside Civil Engineering Ltd | Extraterritorial | 2019 |
| Hillside Court Flats (Leeds) Limited | Households | 1966 |
| Hilltop Interiors Ltd | Construction | 2018 |
| Hilltop Metalworks Limited | Manufacturing | 2004 |
| Hilltop Residence Ltd | Real estate | 2021 |
| Hilltop Security Solutions Ltd | Administrative & support | 2026 |
| Hilltop Upholstery Services Limited | Manufacturing | 2021 |
| Hillworth Capital Limited | Financial services | 2021 |
| Hilmar Land and Investment (2005) Limited | Real estate | 2005 |
| Hilo Store Ltd | Wholesale & retail | 2024 |
| Hilton Futures Growth Ltd | Real estate | 2020 |
| Hilton Grange Management Company Limited | Households | 1998 |
| Himalayan Hub Ltd | Hospitality | 2025 |
| Himalayan Zaika Ltd | Hospitality | 2025 |
| Himami Leeds Limited | Real estate | 2024 |
| Himami Marsham Limited | Real estate | 2024 |
| Himami Westminster Limited | Real estate | 2024 |
| Hinchliffe, Watts & Wyatt Limited | Financial services | 2011 |
| Hinchykaye Ltd | Wholesale & retail | 2025 |
| Hinderwell Lettings Limited | Real estate | 2020 |
| Hindfine Limited | Construction | 1975 |
| Hindle Heating Ltd | Construction | 2023 |
| Hindley Estates Ltd | Real estate | 2022 |
| Hindy Properties Limited | Financial services | 1979 |
| Hing's Palace Limited | Hospitality | 2019 |
| Hinglaj Ltd | Real estate | 2024 |
| Hinko Construction Ltd | Construction | 2015 |
| Hinko Surfacing Ltd | Construction | 2019 |
| Hinsley Properties NO 2 Limited | Real estate | 2003 |
| Hipco Homes Ltd | Real estate | 2021 |
| Hipco Yorkshire Ltd | Construction | 2016 |
| Hippo Digital Limited | Information & communication | 2015 |
| Hippo Pools Limited | Construction | 2020 |
| Hippos Studio Image Ltd | Information & communication | 2024 |
| Hipswell Court Management Limited | Households | 2005 |
| Hird Cowley Investments LLP | | 2008 |
| Hird Estates Limited | Real estate | 2020 |
| Hird Group Limited | Financial services | 2017 |
| Hird Property Management Ltd | Real estate | 2025 |
| Hird Rail Development Limited | Transport & logistics | 2011 |
| Hire N Go Ltd | Administrative & support | 2026 |
| Hireatech Motors Ltd | Wholesale & retail | 2025 |
| Hirepeople Ltd | Administrative & support | 2026 |
| Hirevox Group UK Ltd | Administrative & support | 2023 |
| Hirez US Ltd | Other services | 2023 |
| Hiring Agent Limited | Information & communication | 2025 |
| Hiring Assist Ltd | Wholesale & retail | 2025 |
| Hirons & Potente Ltd | Real estate | 2023 |
| Hiroto Ltd | Manufacturing | 2024 |
| Hirst and Davies Properties Limited | Real estate | 2002 |
| Hirst Personal Training Limited | Other services | 2011 |
| Hirsts Yard Events Limited | Arts & recreation | 2023 |
| HIS 2023 Limited | Financial services | 2023 |
| Hischo Consulting Limited | Professional & scientific | 2014 |
| Hisense UK Limited | Wholesale & retail | 2012 |
| Hispano Heritage Limited | Wholesale & retail | 2009 |
| Histoglass Limited | Wholesale & retail | 2008 |
| Histreet Online Limited | Wholesale & retail | 2023 |