| Hasno Ltd | Financial services | 2023 |
| Hatch and Rise Ltd | Professional & scientific | 2025 |
| Hatton & Harding Holdings Limited | Financial services | 2021 |
| Hatton & Harding Interiors Limited | Construction | 2023 |
| Hatton & Harding Limited | Wholesale & retail | 2010 |
| Hatton James Legal Ltd | Professional & scientific | 2013 |
| Hatton JL Properties Limited | Real estate | 2024 |
| Hatton Park NO.2 Management Company Limited | Households | 1999 |
| Hatton Park NO.3 Management Company Limited | Households | 2000 |
| Hatton Park NO.4 Management Company Limited | Households | 2003 |
| Hauberry Homes Limited | Real estate | 2020 |
| Haunch Lane Developments Limited | Real estate | 1987 |
| Haus of Desserts Solihull Ltd | Hospitality | 2023 |
| Hauskraft Kitchens Ltd | Construction | 2026 |
| Haven Home Stays Ltd | Real estate | 2025 |
| Haven Homes Limited | Extraterritorial | 1982 |
| Haveron Trading Ltd | Real estate | 2025 |
| Havlock Holdings Ltd | Administrative & support | 2015 |
| Hawk Refrigeration Limited | Professional & scientific | 2010 |
| Hawker (YEW Tree Farm) Limited | Construction | 2019 |
| Hawker Construction Limited | Construction | 2007 |
| Hawker Property Services Limited | Construction | 2011 |
| Hawkshead Properties Limited | Real estate | 1956 |
| HAX Digital Limited | Wholesale & retail | 2025 |
| HAY Bros Farming LLP | | 2015 |
| Hayat & Collective Ltd | Wholesale & retail | 2025 |
| Haydon Mills Ltd | Construction | 2024 |
| Hayfield (Campton) Limited | Construction | 2024 |
| Hayfield (Clifton) Limited | Real estate | 2017 |
| Hayfield (Gotherington) Ltd | Construction | 2023 |
| Hayfield Homes (Fallowfields) Limited | Real estate | 2017 |
| Hayfield Homes (Faringdon Road) Limited | Real estate | 2018 |
| Hayfield Homes (Great Bourton) Limited | Construction | 2017 |
| Hayfield Homes (Hallow) Limited | Real estate | 2017 |
| Hayfield Homes (Southam) Limited | Real estate | 2017 |
| Hayfield Homes (Stanton Harcourt) Limited | Real estate | 2018 |
| Hayfield Homes (Tiddington) Limited | Construction | 2016 |
| Hayfield Homes Construction Limited | Construction | 2018 |
| Hayfield Homes Development Company Limited | Construction | 2024 |
| Hayfield Homes Development Group Limited | Construction | 2018 |
| Hayfield Homes Group Limited | Real estate | 2017 |
| Hayfield Homes Limited | Construction | 2015 |
| Hayfield Lodge (Over) Management Company Limited | Households | 2023 |
| Hayfield PM Limited | Construction | 2019 |
| Hayfield Projects Limited | Construction | 2024 |
| Hayzar Homes Ltd | Construction | 2019 |
| Hayzar Ltd | Transport & logistics | 2019 |
| Hazel Oak Family Services Ltd | Public administration | 2020 |
| Hazelmere View Limited | Real estate | 2022 |
| Hazlefield House Ltd | Hospitality | 2020 |
| HB Family Office Ltd | Real estate | 2022 |
| HB Portfolio Ltd | Real estate | 2024 |
| HB Solihull Ltd | Real estate | 2025 |
| HB WTE Ltd | Wholesale & retail | 2019 |
| HBC Catering Ltd | Hospitality | 2024 |
| Hbfs Equity Release Limited | Financial services | 2004 |
| HBJ Real Estate Limited | Real estate | 2015 |
| Hbmo Ltd | Real estate | 2023 |
| HBP Charter Ltd | Transport & logistics | 2024 |
| HBP Exmouth Ltd | Real estate | 2023 |
| HBP Group Limited | Health & social care | 2016 |
| HBP Midlands Ltd | Real estate | 2026 |
| Hbso Ltd | Real estate | 2024 |
| HC Investments (Holdings) Ltd | Financial services | 2023 |
| HC Pharma Limited | Wholesale & retail | 2013 |
| HC1231 Limited | Financial services | 2014 |
| HCB (West Midlands) Limited | Professional & scientific | 2014 |
| HCB Business Services Limited | Administrative & support | 2014 |
| HCB Cardiff (Property) Limited | Real estate | 2018 |
| HCB Group Limited | Other services | 2011 |
| HCB Lawyers and Accountants Limited | Professional & scientific | 2008 |
| HCB Solicitors Ltd | Professional & scientific | 2010 |
| Hcbc Ltd | Other services | 2017 |
| HCD Developments Limited | Construction | 2015 |
| HCD Driveways Limited | Construction | 2024 |
| HCD Enterprises Limited | Real estate | 2021 |
| HCG Hairdressers Ltd | Other services | 2011 |
| HCH Land and Developments Ltd | Real estate | 2020 |
| HCH Land and Properties Ltd | Real estate | 2020 |
| HD Aesthetics Ltd | Other services | 2023 |
| HD Elite Ltd | Professional & scientific | 2021 |
| HD Expertise Limited | Professional & scientific | 2018 |
| HD Shirley Ltd | Hospitality | 2023 |
| HD Tech Ltd | Information & communication | 2025 |
| HDM Retail Limited | Wholesale & retail | 2014 |
| Headline Impact Ltd | Professional & scientific | 2025 |
| Headstart Private Tuition Ltd | Education | 2025 |
| Healingyoungminds Limited | Health & social care | 2022 |
| Health & Wellbeing Osteopathy Ltd | Extraterritorial | 2015 |
| Health Card Ltd | Administrative & support | 2012 |
| Health Care Workers Certification Scheme Limited | Education | 2025 |
| Health Check Solutions Ltd | Health & social care | 2013 |
| Health IS Wealth (Cheltenham) Limited | Health & social care | 2022 |
| Health Marque Ltd | Manufacturing | 2018 |
| Health Train Teach Limited | Administrative & support | 2016 |
| Health, Education and Literacy Programme International | Education | 2003 |
| Healthcare Defence Ltd | Professional & scientific | 2025 |
| Healthcare Knowledge Systems Limited | Professional & scientific | 1989 |
| Healthcare United Limited | Health & social care | 2015 |
| Healthsteer Limited | Health & social care | 2016 |