| Harvey George Limited | Manufacturing | 2017 |
| Harwood Developments Limited | Professional & scientific | 2003 |
| HAS 26 Limited | Real estate | 2015 |
| HAS Property Investments Ltd | Real estate | 2023 |
| Haseeb & Maheen Healthcare Limited | Health & social care | 2025 |
| Hash Key Ltd | Extraterritorial | 2012 |
| Hassall Property Developments Ltd | Real estate | 2014 |
| Hassall Property Holdings Limited | Real estate | 2020 |
| Hatch. Your Future Limited | Information & communication | 2024 |
| Hatem and Raafat Ltd | Extraterritorial | 2022 |
| Hatfield Fencing & Gardens Limited | Administrative & support | 2022 |
| Haus of Hare Ltd | Construction | 2024 |
| Havelok Estates Limited | Real estate | 2024 |
| Haven International Group Ltd | Wholesale & retail | 2020 |
| Havenfort Homes (SPV 1) Ltd | Real estate | 2023 |
| Haverkeld Developments (S1) Ltd | Real estate | 2026 |
| Haverkeld Developments Ltd | Real estate | 2015 |
| Hawbeck Homes Limited | Professional & scientific | 1997 |
| Hawkes Software Ltd | Information & communication | 2022 |
| Hawkins Laxton & Co LLP | | 2025 |
| Hawkwood Investment Holdings Limited | Financial services | 2017 |
| Hawthorn Alpaca's Ltd | Agriculture & fishing | 2003 |
| Hawthorn Park (Leeds) Limited | Real estate | 2001 |
| Hawthorne Productions Limited | Information & communication | 2025 |
| Haxby Christian Cafe Ltd | Hospitality | 2008 |
| Hayfield House Management Company Limited | Households | 2001 |
| Haystacks Country Retreats LLP | | 2021 |
| Hayward Ingham Limited | Extraterritorial | 2026 |
| Hayward Resourcing Limited | Administrative & support | 2007 |
| Hayward Resourcing Property Limited | Real estate | 2017 |
| Hayyafit Ltd | Information & communication | 2024 |
| Hazeldene Farm LLP | | 2026 |
| Hazelmanor Estate Limited | Real estate | 2025 |
| Hazelroyd RTM Company Limited | Real estate | 2013 |
| Hazey Enterprise Ltd | Other services | 2025 |
| Hbfcs Limited | Professional & scientific | 2017 |
| Hbss Consultants Ltd | Professional & scientific | 2015 |
| HC Consultancy (Harrogate) Limited | Professional & scientific | 2019 |
| HC Property Holdings Ltd | Real estate | 2017 |
| HC Terminals Limited | Professional & scientific | 2012 |
| HCT Trustees Ltd | Administrative & support | 2025 |
| HD Dance Education LLP | | 2023 |
| HDC Cleaners Limited | Extraterritorial | 2014 |
| HDS News Limited | Information & communication | 2020 |
| Head-Set NLP Limited | Wholesale & retail | 2025 |
| Headland Coastal Hideaways Ltd | Hospitality | 2026 |
| Headley Holdings Limited | Professional & scientific | 2007 |
| Headtech Consulting Limited | Information & communication | 2017 |
| Heal Coffee Ltd | Hospitality | 2021 |
| Heal Lifestyle Ltd | Financial services | 2021 |
| Health and Mind Ltd | Professional & scientific | 2017 |
| Health to Wealth (Yorkshire) Ltd | Financial services | 2014 |
| Healthali Limited | Health & social care | 2022 |
| Healthcare Knowledge Limited | Information & communication | 2000 |
| Healthflow Limited | Information & communication | 2016 |
| Healthora for Trade Ltd | Wholesale & retail | 2024 |
| Heath Project Management Ltd | Professional & scientific | 2013 |
| Heather Johnson Home Interiors Ltd | Professional & scientific | 2016 |
| Heathfield Caravan Park Limited | Hospitality | 2022 |
| Heathrow Coach Services Limited | Transport & logistics | 1988 |
| Heatsource Direct Limited | Manufacturing | 2016 |
| Hedgehog Holiday Letting Limited | Real estate | 2021 |
| Heidi Coppock-Beard Photography Ltd | Arts & recreation | 2014 |
| Height TEC Limited | Manufacturing | 2011 |
| Helen Thomas Consultancy Limited | Professional & scientific | 2017 |
| Helicompany Limited | Transport & logistics | 2008 |
| Helix Projects Limited | Professional & scientific | 2024 |
| Hellflower Films Ltd | Information & communication | 2017 |
| Hello Darling Photography Ltd | Professional & scientific | 2020 |
| Helmie Ltd | Wholesale & retail | 2020 |
| Help Next Door Ltd | Information & communication | 2020 |
| Hendassa Limited | Construction | 2014 |
| Hendis Consulting Limited | Information & communication | 2011 |
| Henry & Mcturk Properties Limited | Real estate | 2022 |
| Henry Evelyn & Co Limited | Professional & scientific | 2005 |
| Henry White Limited | Extraterritorial | 2021 |
| Hensfirst UK Ltd | Wholesale & retail | 2017 |
| Hera Aesthetics Ltd | Other services | 2020 |
| Heraths of Harrogate Ltd | Wholesale & retail | 2023 |
| Herbal Biotech Limited | Manufacturing | 2011 |
| Hercules Group Limited | Extraterritorial | 2026 |
| Hercules Homes Limited | Construction | 2017 |
| Herd Acoustics Limited | Professional & scientific | 2023 |
| Hereford Lodge Management Limited | Households | 2002 |
| Heritage Building Company (Harrogate) Limited | Construction | 2020 |
| Herman & Peters Limited | | 2013 |
| Heronhawk Limited | Professional & scientific | 2008 |
| Herridge Investments (UK) Limited | Financial services | 2018 |
| Herriot Hospice Homecare | Health & social care | 2013 |
| Hessle Properties (the Weir) Limited | Health & social care | 2008 |
| Hessle Properties Limited | Real estate | 1986 |
| Hesslewood Limited | Professional & scientific | 2025 |
| HEX Tattoo Limited | Other services | 2024 |
| Hexadek Ltd | Professional & scientific | 2023 |
| Hexagon Pictures Limited | Information & communication | 2021 |
| Hexahost Ltd | Information & communication | 2025 |
| HEY ME Limited | Professional & scientific | 2018 |
| Hezum (UK) Limited | Information & communication | 2019 |
| HG 20 Ltd | Arts & recreation | 2026 |
| HG CBD Ltd | Wholesale & retail | 2020 |