| Heaton Green Containment Limited | Construction | 2004 |
| Heaton Park Villas Management Limited | Households | 2008 |
| Heatsmart GAS and Heating Services Ltd | Construction | 2024 |
| Heavenly Childrens Homes Ltd | Health & social care | 2024 |
| Hebble Hydraulic Services Limited | Manufacturing | 1985 |
| Heckystar Limited | Wholesale & retail | 2021 |
| Hedgerows Business Park Management Company Limited | Real estate | 1991 |
| Heels Down Ltd | Wholesale & retail | 2020 |
| Heera Enterprise Ltd | Hospitality | 2012 |
| Hehza (Health Education, Helpers Zambia Africa ) Ltd | Extraterritorial | 2024 |
| Heidarifar Ltd | Health & social care | 2020 |
| Height Sure Ltd | Construction | 2021 |
| Heights Properties Holdings Limited | Financial services | 2025 |
| Hekmatullah Hemat Delivery Ltd | Transport & logistics | 2026 |
| Hela Brands Limited | Wholesale & retail | 1979 |
| Helen Mann Consulting Ltd | Professional & scientific | 2023 |
| Helen Parker Celebrancy & Consultancy Services Ltd | Education | 2023 |
| Heli Developments Limited | Extraterritorial | 2016 |
| Helical Pipelines Limited | Manufacturing | 1996 |
| Helios Legal Services Limited | Professional & scientific | 2022 |
| Helix Agencies Limited | Administrative & support | 2004 |
| Hellawell Holdings Limited | Real estate | 2022 |
| Hellfire Entertainment Limited | Hospitality | 2015 |
| Helliwells Bookkeeping Limited | Professional & scientific | 2024 |
| Hello Kitty Travel Limited | Administrative & support | 2023 |
| Hello Sweet Thing Limited | Wholesale & retail | 2012 |
| Helloffer Education Ltd | Education | 2024 |
| Hellopaper Limited | Wholesale & retail | 2025 |
| Helm Electrics Ltd | Construction | 2021 |
| Helping Communities CIC | Professional & scientific | 2026 |
| Helping Hands Protection Ltd | Financial services | 2019 |
| Hemisphere Branco Logistics Ltd | Other services | 2025 |
| Hemisphere Foods & Accesories UK Ltd | Other services | 2025 |
| Hemmels Automotive Ltd | Manufacturing | 2022 |
| Hemmels Vault Limited | Manufacturing | 2022 |
| Hemp Union Ltd | Information & communication | 2018 |
| Hemplow Limited | Real estate | 2003 |
| Hempshaw Stores Ltd | Wholesale & retail | 2013 |
| Hemsworth Leisure Ltd | Hospitality | 2014 |
| HEN Party Cottages Limited | Administrative & support | 2017 |
| Henarix Trading Ltd | Wholesale & retail | 2024 |
| Hendre Commercial Limited | Real estate | 2022 |
| Henry's Bar (Skelmanthorpe) Ltd | Hospitality | 2026 |
| Henry's Skelmanthorpe Limited | Hospitality | 2022 |
| Henry-Osa Properties Limited | Real estate | 2025 |
| Heppys Truck Trailer Services Ltd | Wholesale & retail | 2022 |
| HER Pace Limited | Health & social care | 2024 |
| Herbal Forces Ltd | Real estate | 2025 |
| Herbert Brown Limited | Professional & scientific | 1956 |
| Herbert Chappell Tailors London Limited | Wholesale & retail | 2017 |
| Herefordshire Land Limited | Financial services | 2010 |
| Herimat Limited | Wholesale & retail | 2025 |
| Heritage Letting & Sales Ltd | Real estate | 2021 |
| Heritage Multi Academy Trust | Education | 2011 |
| Heritage Surveyors Limited | Professional & scientific | 2026 |
| Heritage Wealth Solutions Ltd | Financial services | 2015 |
| Heritage Weavers Ltd | Wholesale & retail | 2020 |
| Heroic Beard Films Ltd | Information & communication | 2024 |
| Herriott Consulting Ltd | Administrative & support | 2012 |
| Hershy's Electrical Ltd | Professional & scientific | 2025 |
| Hester Property Developments Ltd | Real estate | 2015 |
| Hesters Property Solutions Ltd | Real estate | 2026 |
| Hewitt & Scholes Properties Ltd | Real estate | 2026 |
| Hexagon Life UK Ltd | Financial services | 2024 |
| Hexham Beck Ltd | Professional & scientific | 2024 |
| Hexonco Limited | Wholesale & retail | 2018 |
| HEY Farm Saddlery Limited | Wholesale & retail | 2001 |
| HEY Marketing Ltd | Professional & scientific | 2013 |
| Hey's Accountancy Ltd | Professional & scientific | 2010 |
| Hey's BS Ltd | Professional & scientific | 2010 |
| Hey's Business Services Ltd | Professional & scientific | 1997 |
| Heyfield Engineering Limited | Manufacturing | 2005 |
| Heywood Williams Architectural Limited | Manufacturing | 2019 |
| HF Storage Limited | Transport & logistics | 2019 |
| HFE Property Ltd | Real estate | 2025 |
| HGG Property Ltd | Real estate | 2024 |
| Hggk Properties Ltd | Real estate | 2026 |
| HH Dent Ltd | Health & social care | 2017 |
| HH Supplies Limited | Wholesale & retail | 2023 |
| Hhft Ltd | Wholesale & retail | 2023 |
| HI Life Diners Club Limited | Administrative & support | 2000 |
| Hi-Tech Security & Fire Systems (Halifax) Limited | Administrative & support | 2006 |
| Hi-Visibility Ltd | Manufacturing | 1990 |
| Hiam Ltd | Administrative & support | 2019 |
| Hidamimpex Ltd | Wholesale & retail | 2026 |
| Hideaway Holiday Cottage Limited | Hospitality | 2020 |
| Hiding OUT Ltd | Hospitality | 2024 |
| Higginbottom International Investment Group Ltd | Construction | 2018 |
| High Brow Advisory Ltd | Information & communication | 2022 |
| High Castle View Ltd | Households | 2018 |
| High Octane Investments Ltd | Financial services | 2022 |
| High Performance Tuning Ltd | Wholesale & retail | 2018 |
| High Royd Property Limited | Other services | 2021 |
| Highburton Analysis Limited | Information & communication | 2015 |
| Highcliffe Developments HX Ltd | Real estate | 2025 |
| Highdale Accounting Ltd | Professional & scientific | 2018 |
| Higher Agency Limited | Professional & scientific | 2026 |
| Higher Towers Limited | Professional & scientific | 2019 |
| Highfield Court (Wakefield) Management Company Limited | Households | 2007 |
| Highfield Gears and Machining Ltd | Professional & scientific | 2018 |