| Henton & Co LLP | | 2001 |
| Hentons (Business Services) Limited | Administrative & support | 2021 |
| Hentons (Group) LLP | | 2015 |
| Hentons (London) Limited | Professional & scientific | 2012 |
| Hentons (UK) Limited | Professional & scientific | 2015 |
| Hentons (York) Ltd | Professional & scientific | 2018 |
| Hentons Advisory LLP | | 2017 |
| Hentons Corporate Services Limited | Professional & scientific | 2020 |
| Hentons Limited | Professional & scientific | 2018 |
| Hentons Management LLP | | 2018 |
| Hentons Wealth Limited | Professional & scientific | 2018 |
| Hentons Wealth Management LLP | | 2012 |
| Hephzibah Consult UK Limited | Health & social care | 2023 |
| Hephzibah Consultants Limited | Administrative & support | 2014 |
| Hepic International Ltd | Wholesale & retail | 2019 |
| Hepple Hudson Miles Limited | Financial services | 2024 |
| Hepple Property Investments Limited | Real estate | 2024 |
| Hepworth Browne Holdings Limited | Professional & scientific | 2021 |
| Hepworth Browne Limited | Professional & scientific | 2006 |
| HER Sanctuary Holistic Clinic Limited | Education | 2025 |
| Hera Laser and Skin Ltd | Health & social care | 2023 |
| Hera Publishing Ltd | Information & communication | 2022 |
| Heralderit Ltd | Health & social care | 2025 |
| Heravi Ltd | Professional & scientific | 2023 |
| Heravi Property Group Ltd | Real estate | 2026 |
| Herbert Harrison Ltd | Health & social care | 2022 |
| Herbert Holdings Limited | Financial services | 2024 |
| Herbieandlou Limited | Wholesale & retail | 2021 |
| Hercloset Limited | Wholesale & retail | 2025 |
| Herdsmangainako Limited | Construction | 2025 |
| Here Investments | Financial services | 2025 |
| Here's an Idea Ltd | Administrative & support | 2023 |
| Herecomesthesun Ltd | Wholesale & retail | 2025 |
| Hereni Time Service Ltd | Other services | 2026 |
| Herfield Cleaning Ltd | Administrative & support | 2024 |
| Heriot Property Investments Limited | Real estate | 2015 |
| Heritage Bloodstock Limited | Agriculture & fishing | 2010 |
| Heritage Crew Community Interest Company | Education | 2023 |
| Heritage Development (Yorkshire) Ltd | Construction | 2019 |
| Heritage Developments (North York's) Ltd | Construction | 1997 |
| Heritage Estates North West Ltd | Real estate | 2025 |
| Heritage Fisheries Limited | Extraterritorial | 1947 |
| Heritage Green (Chesterfield) Management Company Limited | Households | 2019 |
| Heritage Green (Newbottle) Management Company Limited | Households | 2016 |
| Heritage Harvest Foods Limited | Wholesale & retail | 2024 |
| Heritage Holdings Yorkshire Ltd | Real estate | 2020 |
| Heritage Insider Ltd | Professional & scientific | 2014 |
| Heritage Roofing Solutions Ltd | Construction | 2025 |
| Heritage Rose Properties Ltd | Households | 2024 |
| Heritage Surgical Ltd | Manufacturing | 2026 |
| Heritage Textile Company Limited | Manufacturing | 2000 |
| Heritaige Group Investments Ltd | Other services | 2025 |
| Herity Ltd | Real estate | 2022 |
| Herla Support Limited | Administrative & support | 2025 |
| Hermanos Homes Limited | Real estate | 2024 |
| Hermis Vacations Limited | Arts & recreation | 2011 |
| Hermit Business Solutions Limited | Professional & scientific | 2018 |
| Hermit Cloud Ltd | Professional & scientific | 2018 |
| Hernon Municipal Engineering Ltd | Construction | 2017 |
| Hero Metal Fabrication Ltd | Manufacturing | 2026 |
| Heroes Collective Ltd | Manufacturing | 2017 |
| Heroes Programme Ltd | Health & social care | 2023 |
| Heron Anstead Media Global Ltd | Administrative & support | 2007 |
| Heron Construction Leeds Ltd | Construction | 2025 |
| Heron Developments Leeds Ltd | Real estate | 2009 |
| Heron Property Developments Ltd | Construction | 2023 |
| Herring & Hodge Limited | Health & social care | 2020 |
| Herring Assets Ltd | Real estate | 2026 |
| Herring Developments Limited | Financial services | 1963 |
| Herrington Process Solutions Ltd | Professional & scientific | 2024 |
| Hertz Your MAN With a Van Ltd | Transport & logistics | 2025 |
| Hesco Bastion Limited | Manufacturing | 1991 |
| Heshuo Limited | Hospitality | 2022 |
| Hesketh Court Management Limited | Households | 2004 |
| Hesla Limited | Information & communication | 2019 |
| Hesper GRC Limited | Professional & scientific | 2022 |
| Hessle Ltd | Financial services | 2025 |
| Hest Inc Ltd | Transport & logistics | 2016 |
| Hesten Ltd | Professional & scientific | 2024 |
| Hestia Havens Ltd | Real estate | 2025 |
| Hestia Home Solutions Ltd | Real estate | 2026 |
| Hestia Property 2 Limited | Real estate | 2019 |
| Heswall Detailing Services Ltd | Other services | 2014 |
| Hesy Developments Limited | Real estate | 2018 |
| HETEJ24 Co. Ltd | Wholesale & retail | 2022 |
| Heterogenius Limited | Information & communication | 2014 |
| Hetta Limited | Health & social care | 2023 |
| Hetty Keeps Clean Ltd | Administrative & support | 2021 |
| Heviso Limited | Health & social care | 2014 |
| Hewlett (BR) Limited | Real estate | 2022 |
| Hewlett (CG1) Limited | Real estate | 2021 |
| Hewlett (CG2) Limited | Real estate | 2021 |
| Hewlett (CG3) Limited | Real estate | 2021 |
| Hewlett (Kilbride) Ltd | Financial services | 2025 |
| Hewlett Civil Engineering Limited | Construction | 1987 |
| Hewlett Construction Group Limited | Professional & scientific | 2004 |
| Hewn Design Group Limited | Professional & scientific | 2024 |
| Heworth Court Flats Limited | Households | 1988 |
| Hexagon Bars Limited | Hospitality | 2026 |
| Hexagon Consultancy Limited | Professional & scientific | 2013 |