| Hatching Plans Limited | Professional & scientific | 2020 |
| Hathershelf Construction Limited | Construction | 2022 |
| Hatton Hill Ltd | Education | 2026 |
| Haven Building & Maintenance Limited | Construction | 2003 |
| Haven Building Limited | Construction | 2016 |
| Haven Devolpments Ltd | Construction | 2025 |
| Haverley Properties Limited | Real estate | 1992 |
| Havmow Properties Ltd | Real estate | 2015 |
| Hawk Productions Limited | Administrative & support | 2016 |
| Hawks Supplies Limited | Wholesale & retail | 2023 |
| Hawksworth Heating Limited | Manufacturing | 2004 |
| Haworth Gardner Ltd | Wholesale & retail | 2025 |
| Hawraman Foods Limited | Wholesale & retail | 2019 |
| Hayaat Ltd | Professional & scientific | 2020 |
| Haychex Limited | Extraterritorial | 2021 |
| Hayes Refinishing Limited | Professional & scientific | 2009 |
| Hayle Foundry Limited | Real estate | 2015 |
| Hayle Quays Limited | Construction | 2015 |
| Hayle South Quay Limited | Construction | 2025 |
| Haywood Custley Ltd | Wholesale & retail | 2025 |
| HB Builders (Halifax) Limited | Construction | 2020 |
| HBK Limited | Other services | 2002 |
| HBM Builders Structural Masonry Roofing Contractors Limited | Construction | 2024 |
| HBO2GO Ltd | Health & social care | 2023 |
| Hbul Ltd | Information & communication | 2016 |
| HCW Investments Limited | Financial services | 2018 |
| HD External Cleaning Ltd | Administrative & support | 2025 |
| HD Scaffolding and Access Ltd | Construction | 2021 |
| HD Thai Ltd | Hospitality | 2025 |
| HD5 Developments Ltd | Real estate | 2023 |
| HD6 Sewing Machines Ltd | Manufacturing | 2023 |
| HDI Digital Limited | Information & communication | 2016 |
| HDI Investments Limited | Real estate | 2019 |
| HDI Lifts Limited | Manufacturing | 2020 |
| HDI LOW Energy Limited | Manufacturing | 2020 |
| HDI Ltd | Professional & scientific | 2004 |
| HDI Nova-Tech Limited | Wholesale & retail | 2020 |
| HDT Services Limited | Real estate | 2001 |
| Headingley Restaurant Limited | Hospitality | 2024 |
| Headlands Garage Hipperholme Ltd | Wholesale & retail | 2017 |
| Headoffice Salon Limited | Other services | 2009 |
| Health Bunker Ltd | Other services | 2018 |
| Health Bunker Wellness Ltd | Other services | 2023 |
| Healthcare First Direct Ltd | Health & social care | 2015 |
| Healthcare Quality Services Ltd | Professional & scientific | 2026 |
| Healthwatch Kirklees | Health & social care | 2013 |
| Heaps Removals and Storage Limited | Transport & logistics | 1960 |
| Heat IQ Limited | Hospitality | 2018 |
| Heat Packs SPV Limited | Financial services | 2020 |
| Heat Works Group Limited | Financial services | 2020 |
| Heath Rufc (1928) Limited | Hospitality | 2021 |
| Heather View Escapes Ltd | Real estate | 2024 |
| Heathroyde Packaging Ltd | Wholesale & retail | 2017 |
| Heaton (Export & Marketing) Limited | Wholesale & retail | 1995 |
| Heaton Installations Ltd | Construction | 2023 |
| Heats (Healthy Eats) Ltd | Information & communication | 2024 |
| Heaven Sent Clinics Limited | Other services | 2021 |
| Hebble & Stone CIC | Information & communication | 2026 |
| Hebble Harlequins Limited | Health & social care | 2011 |
| Hebble Holdings Limited | Financial services | 2015 |
| Hebble Lets Limited | Real estate | 2013 |
| Hebble Ltd | Wholesale & retail | 2025 |
| Hebble Properties Limited | Construction | 2011 |
| Hebblebrook Developments Ltd | Real estate | 2024 |
| Hebblewhite Holdings Ltd | Professional & scientific | 2020 |
| Hebden Bridge Hostel Limited | Hospitality | 2022 |
| Hebden Tech Tutors CIC | Information & communication | 2026 |
| Hebdenhey Ltd | Wholesale & retail | 2023 |
| HEEL2HEAL Ltd | Health & social care | 2014 |
| Heights (U.K.) Limited | Manufacturing | 1984 |
| Helal Meats Limited | Wholesale & retail | 2018 |
| Helen Krushniak Holdings Limited | Financial services | 2017 |
| Helensvale Properties Limited | Real estate | 2017 |
| Helpful Hogan Removals Ltd | Transport & logistics | 2023 |
| Hemingway Communications Limited | Professional & scientific | 2003 |
| Hemlock Tilton Ltd | Wholesale & retail | 2025 |
| Hemsworth & Co Limited | Professional & scientific | 2004 |
| HEN Run Limited | Hospitality | 2021 |
| Henderson Automation Ltd | Professional & scientific | 2022 |
| Henriette Heimdal Ltd | Professional & scientific | 2021 |
| Henry's Bespoke Joinery Services Ltd | Construction | 2022 |
| Henry's Group Holdings Limited | Financial services | 2021 |
| Heptinstall Financial Services Ltd | Financial services | 2025 |
| Hepworth International Limited | Wholesale & retail | 2003 |
| Herding Cats Limited | Professional & scientific | 2026 |
| Here for YOU Calderdale Community Interest Company | Wholesale & retail | 2025 |
| Hereward Bishop Ltd | Wholesale & retail | 2025 |
| Hermetic Clarity Ltd | Manufacturing | 2025 |
| Hermitage Radiology Limited | Health & social care | 2017 |
| Herzog Consulting Limited | Professional & scientific | 2019 |
| Hester Panim Limited | Professional & scientific | 2026 |
| HEX Halifax Ltd | Wholesale & retail | 2018 |
| HEX Online Ltd | Wholesale & retail | 2025 |
| Hexagon Accountancy Limited | Professional & scientific | 2018 |
| Hexsure Ltd | Real estate | 2026 |
| HEY Baby 4D Yorkshire West Ltd | Health & social care | 2020 |
| HEY Ecology Ltd | Professional & scientific | 2025 |
| Heydev Ltd | Wholesale & retail | 2025 |
| Heywood EOT Limited | Administrative & support | 2024 |
| Heywood Timber Engineering Limited | Construction | 2025 |