| Healthwise Homes Ltd | Health & social care | 2018 |
| Healthwise Training & Consultancy Ltd | Administrative & support | 2016 |
| Healthy Hearts Clinic Limited | Health & social care | 2025 |
| Healthy Living Cheltenham Limited | Financial services | 2023 |
| Healthy Sight Limited | Health & social care | 2022 |
| Healy Fencing & Landscaping Ltd | Administrative & support | 2019 |
| Healy Garden Design & Co Ltd | Administrative & support | 2025 |
| Hearing AID Repairs Limited | Wholesale & retail | 2021 |
| Hearnden & Weston Wealth Management Limited | Administrative & support | 2014 |
| Heart and Cardio Limited | Health & social care | 2021 |
| Heart of England Aeromodellers Limited | Arts & recreation | 2017 |
| Heart of England Cyber & IT Services Ltd | Information & communication | 2025 |
| Heart of England Environmental Services Limited | Water & waste | 2026 |
| Heart of England Kitchen Design Limited | | 1984 |
| Heartfelt Homecare Southport Limited | Other services | 2024 |
| Heartflood Ltd | Administrative & support | 2014 |
| Heartland Contractors Limited | Construction | 1988 |
| Heartland Heights Limited | Real estate | 2017 |
| Heat Better Ltd | Construction | 2025 |
| Heat From Air Ltd | Professional & scientific | 2023 |
| Heatbot Smart Solutions Limited | Construction | 2025 |
| Heatflo Mechanical Limited | Construction | 2014 |
| Heath Drive Management Company Limited | Households | 2015 |
| Heather Paver Ltd | Professional & scientific | 2016 |
| Heathmere (Chelmsley Wood) Limited | Households | 1982 |
| Heatnet Consulting Limited | Professional & scientific | 2022 |
| Heatsafe Birmingham Limited | Construction | 2020 |
| Heatsafe Plus Limited | Construction | 2023 |
| Heatworx Limited | Construction | 2013 |
| Heaven Housing Limited | Real estate | 2021 |
| Heaven Nails Solihull Ltd | Other services | 2025 |
| Hector Hall Associates Limited | Administrative & support | 2013 |
| Hedgeview Property Management Limited | Households | 1983 |
| Hedgeways (Tongham) Management Company Limited | Households | 2024 |
| Heedgrove Limited | Real estate | 1990 |
| HEK Ltd | Wholesale & retail | 2017 |
| Helen Dunnico Consultancy Ltd | Education | 2023 |
| Helen Tinkler Limited | Administrative & support | 2019 |
| Hello Desk Ltd | Information & communication | 2026 |
| Hello Gorgeous Holidays Ltd | Administrative & support | 2022 |
| Helmsley Court Farm Limited | Manufacturing | 2016 |
| Hemlingford Road Management Company Limited | Extraterritorial | 2008 |
| Hemming Infrastructure Management Limited | Construction | 2024 |
| Hempro Limited | Wholesale & retail | 1993 |
| Henharhun Company Limited | Hospitality | 2023 |
| Henley Boutique Ltd | Wholesale & retail | 2023 |
| Henley Medicare Limited | Health & social care | 2020 |
| Henley Reach Dental Ltd | Health & social care | 2023 |
| Henry & Co International Ltd | Real estate | 2023 |
| Henry & Co Property Management Ltd | Real estate | 2024 |
| Henry V. Jones & Co. Limited | Extraterritorial | 1995 |
| Henrys Homes Ltd | Construction | 2020 |
| Henty Limited | Financial services | 2020 |
| Hepburn Fellows Capital Limited | Real estate | 2026 |
| HER Holistic Health Limited | Health & social care | 2024 |
| Herbert (1) PLC | Financial services | 1994 |
| Herbert (10) PLC | Professional & scientific | 1994 |
| Herbert (2) PLC | Financial services | 1994 |
| Herbert (4) PLC | Financial services | 1994 |
| Herbert (5) PLC | Financial services | 1994 |
| Herbert (6) PLC | Professional & scientific | 1994 |
| Herbert (7) PLC | Professional & scientific | 1994 |
| Herbert (8) PLC | Professional & scientific | 1994 |
| Herbert (9) PLC | Professional & scientific | 1994 |
| Hereford Grange Management Company Limited | Households | 2018 |
| Herfect Health Limited | Health & social care | 2025 |
| Heritage Drives and Landscapes Ltd | Construction | 2021 |
| Heritage Property Builders Ltd | Construction | 2022 |
| Heritage Star Ltd | Real estate | 2021 |
| Hermanbrot UK Limited | Manufacturing | 2018 |
| Hermanos Barbers Dickens Heath Ltd | Other services | 2022 |
| Hermanos Barbers Limited | Other services | 2019 |
| Hermitage Hotel Limited | Hospitality | 2025 |
| Hermitage Park Hotel Limited | Hospitality | 2025 |
| Hero Medical Ltd | Health & social care | 2023 |
| Heronbrook Management Company Limited | Households | 2002 |
| Heronfield Developments Limited | Real estate | 1967 |
| Heronsbrook Holdings Ltd | Construction | 2020 |
| Herori Ltd | Other services | 2025 |
| Hesci Ltd | Professional & scientific | 2022 |
| Hession-Kent Business Solutions Limited | Information & communication | 2021 |
| HET Consulting Ltd | Professional & scientific | 2025 |
| Heta Innovation Ltd | Professional & scientific | 2024 |
| Heuresis Limited | Professional & scientific | 2024 |
| Hexacampeao Limited | Financial services | 2019 |
| Hexerec Ltd | Manufacturing | 2021 |
| Hexxee Limited | Manufacturing | 2019 |
| HEY Baby 4D Birmingham South Ltd | Health & social care | 2019 |
| HF Homes Limited | Real estate | 2025 |
| HFB Management Limited | Households | 2020 |
| HFE Risk Consulting Ltd | Professional & scientific | 2022 |
| Hflow Ltd | Transport & logistics | 2025 |
| HG Haulage Limited | Professional & scientific | 1997 |
| HGA Learning Ltd | Professional & scientific | 2014 |
| HGC Lubombo Ltd | Real estate | 2014 |
| HH (Adderbury) Limited | Construction | 2021 |
| HH (Aston Clinton) Limited | Construction | 2023 |
| HH (Beadlow) Limited | Construction | 2021 |
| HH (Blunsdon) Limited | Construction | 2019 |
| HH (Broad Hinton) Limited | Construction | 2023 |