| Headway South Staffordshire | Health & social care | 2007 |
| Healbuild Developments Ltd | Construction | 2011 |
| Healthcare Communication Matters | Professional & scientific | 2018 |
| Healthmate Group Limited | Information & communication | 2024 |
| Healthsol Limited | Health & social care | 2025 |
| Healthsphere Leadership Ltd | Professional & scientific | 2024 |
| Healthy Minds Stafford Ltd | Health & social care | 2015 |
| Heanor Brewing Company Limited | Extraterritorial | 2013 |
| HEAR365 Limited | Health & social care | 2012 |
| Hearing Aids Near ME Ltd | Wholesale & retail | 2023 |
| Heart of Glass Gallery Ltd | Wholesale & retail | 2024 |
| Hearth & Holland Chimney Cleaning Services Ltd | Administrative & support | 2015 |
| Hearth Products Ltd | Wholesale & retail | 2003 |
| Hearth Products Properties Limited | Real estate | 2025 |
| Hearthcraft Creations Ltd | Wholesale & retail | 2024 |
| Hearts & Hands CIC | Hospitality | 2025 |
| Heatcore Domestic & Commercial Heating Ltd | Construction | 2018 |
| Heath Garage Ltd | Wholesale & retail | 2010 |
| Heavenz Gate Limited | Information & communication | 2021 |
| Hefei Umon International Co., Ltd | Wholesale & retail | 2023 |
| Hefei Xingyu Chemical Co., Ltd | Wholesale & retail | 2025 |
| Hegs PHE Limited | Professional & scientific | 2024 |
| Heijia International Trade Ltd | Wholesale & retail | 2025 |
| Heim Properties Ltd | Real estate | 2023 |
| Helen Soutar Limited | Professional & scientific | 2018 |
| Helen Willis Make UP Ltd. | Other services | 2017 |
| Heliocentric Productions Limited | Information & communication | 2021 |
| Helios Group Holdings Ltd | Financial services | 2023 |
| Helios Transport Consultancy Ltd | Transport & logistics | 2023 |
| Helpful Software Ltd | Information & communication | 2025 |
| Hendy Associates Limited | Education | 2009 |
| Heniam Holdings Ltd | Financial services | 2025 |
| Henkson Limited | Wholesale & retail | 2008 |
| Henly (Int'L) Limited | Construction | 2014 |
| Henny Trading Ltd | Hospitality | 2026 |
| Henso Medical (Hangzhou) Co., Ltd. | Manufacturing | 2014 |
| Henson Ceramics Limited | Manufacturing | 1990 |
| Henxing Trade Limited | Wholesale & retail | 2024 |
| Herbies Detailing Ltd | Administrative & support | 2026 |
| HERE4INCLUSION Ltd | Information & communication | 2021 |
| Hergest Navigation Limited | Administrative & support | 2016 |
| Hermannbere Ltd | Hospitality | 2019 |
| Hermanubis Consulting Limited | Real estate | 2024 |
| Hermanus Dental Care Limited | Health & social care | 2024 |
| Hermitech Limited | Information & communication | 2021 |
| Herod Construction Services Limited | Professional & scientific | 2001 |
| Heryeans Limited | Wholesale & retail | 2025 |
| Hexdown Ltd | Financial services | 2020 |
| Hextall Property Limited | Real estate | 2021 |
| HGC Property Design Ltd | Professional & scientific | 2025 |
| HGH Property Management Limited | Real estate | 2021 |
| Hibobi International Co., Limited | Manufacturing | 2022 |
| Hickenbottom & Sons Ltd | Construction | 2021 |
| Hickenbottom Fire Doors Ltd | Construction | 2026 |
| Hidcot Acquisitions Ltd | Administrative & support | 2010 |
| Hidden Layer Limited | Wholesale & retail | 2017 |
| Hiddengem Properties Limited | Real estate | 2024 |
| Hide Ltd | Construction | 2018 |
| High Chase Interiors Ltd | Construction | 2017 |
| High Class Glass Limited | Construction | 2003 |
| High Class Management Limited | Extraterritorial | 2012 |
| High Lead Group Holdings Limited | Wholesale & retail | 2022 |
| High ONN Barns Management Co Limited | Households | 2018 |
| High Point Management Consultancy Ltd | Professional & scientific | 2014 |
| High Tech Installations Ltd | Information & communication | 2012 |
| High Top Import and Export Co., Ltd. | Wholesale & retail | 2024 |
| High-Flyer Capital Management (UK) Limited | Information & communication | 2025 |
| Highdroponics Ltd | Agriculture & fishing | 2022 |
| Highfield Environmental Holdco Limited | Financial services | 2016 |
| Highfield Environmental Limited | Water & waste | 2016 |
| Highfield Fish Bar Ltd | Hospitality | 2021 |
| Highteen Group Co., Ltd | Extraterritorial | 2014 |
| Hilcote Gardens Management Services Ltd | Households | 2021 |
| Hildastone Property Holdings Ltd | Hospitality | 2025 |
| Hill Aerospace Limited | Administrative & support | 2007 |
| Hill Group Commercial Services Limited | Administrative & support | 2020 |
| Hill Group Facilities Limited | Administrative & support | 2020 |
| Hill Group Holdings Limited | Financial services | 2020 |
| Hill Group Manufacturing Limited | Manufacturing | 2020 |
| Hill Group Technologies Limited | Professional & scientific | 2020 |
| Hill Helicopters Limited | Wholesale & retail | 2020 |
| Hill Helicopters Support Limited | Manufacturing | 2020 |
| Hill's Kitchen Ltd | Manufacturing | 2023 |
| Hillcroft Associates Limited | Information & communication | 2003 |
| Hills 360 Ltd | Administrative & support | 2025 |
| Hillsnsea Ltd | Wholesale & retail | 2025 |
| Hillsword Limited | Real estate | 1985 |
| Hitco One General Trading Ltd | Wholesale & retail | 2024 |
| Hitcount Ltd | Other services | 2014 |
| Hitec Consultancy Limited | Administrative & support | 2012 |
| Hixon Plant Hire Ltd | Agriculture & fishing | 2024 |
| Hixon Tyres Limited | Wholesale & retail | 2017 |
| HJ Hairdressing Beauty & Aesthetics Limited | Other services | 2021 |
| HK Fountain House Ltd | Hospitality | 2017 |
| HK Yuanjin Imp&Exp Co., Limited | Extraterritorial | 2014 |
| Hksgroup Ltd | Real estate | 2019 |
| Hkxin Ltd | Hospitality | 2024 |
| HL TD Co., Limited | Wholesale & retail | 2025 |
| HLS Social Work Limited | Public administration | 2017 |
| Hluk Dance Theater Global Education Ltd | Wholesale & retail | 2025 |