| HPW Developments Limited | Other services | 1993 |
| HQ Digital Design Limited | Information & communication | 2025 |
| HQL Property Limited | Real estate | 2018 |
| HR & Business Solutions Limited | Professional & scientific | 2004 |
| HR & Training Solutions Ltd | Professional & scientific | 2006 |
| HR Expertise Ltd | Wholesale & retail | 2025 |
| HR Happy Ltd | Administrative & support | 2023 |
| HR Maturity Ltd | Professional & scientific | 2013 |
| HR OPS Ltd | Extraterritorial | 2024 |
| HR Restaurants Limited | Hospitality | 2025 |
| HRB Hotel Company Limited | Hospitality | 2012 |
| HRC Fruit & VEG Ltd | Wholesale & retail | 2021 |
| Hrchitect Ltd | Professional & scientific | 2025 |
| HRD Hardware and Pet Supplies Ltd | Wholesale & retail | 2019 |
| Hrne Limited | Professional & scientific | 2025 |
| Hroub Ltd | Health & social care | 2024 |
| Hrps Property Ltd | Real estate | 2019 |
| HRS Media Limited | Administrative & support | 2021 |
| HS 222 Ltd | Wholesale & retail | 2018 |
| HS Accountants Limited | Professional & scientific | 2021 |
| HS Bath Sushi Limited | Hospitality | 2016 |
| HS Business Recovery Ltd. | Professional & scientific | 2000 |
| HS Electrical (Bristol) Ltd | Construction | 2023 |
| HS Exeter Sushi Ltd | Hospitality | 2019 |
| HS Heating and Electrical Ltd | Construction | 2024 |
| HS Holdings (Bristol) Ltd | Real estate | 2024 |
| HS Mercantile Ltd | Wholesale & retail | 2022 |
| HS Property Care Ltd | Administrative & support | 2026 |
| HS Time Trading Ltd | Wholesale & retail | 2026 |
| HS23 Limited | Wholesale & retail | 2018 |
| HSE Property 2 Ltd | Real estate | 2023 |
| HSE Property Ltd | Real estate | 2021 |
| Hseco UK Ltd | Wholesale & retail | 2020 |
| Hsgt Limited | Wholesale & retail | 2010 |
| Hsgw Medical Limited | Health & social care | 2022 |
| HSH Housing Ltd | Real estate | 2023 |
| HSH Motor Company Limited | Wholesale & retail | 2002 |
| Hshj Ltd | Health & social care | 2021 |
| HSM Consultants Ltd | Information & communication | 2025 |
| Hsmp Investments Limited | Real estate | 2020 |
| HSP87 Ltd | Health & social care | 2015 |
| HSR Lifestyle Solutions Ltd | Construction | 2024 |
| HSV (U.K.) Limited | Financial services | 2024 |
| HT Health Ltd | Health & social care | 2023 |
| HT Services Ltd | Administrative & support | 2023 |
| Htbu Holdings Ltd. | Health & social care | 2025 |
| HTD Consults UK Ltd | Other services | 2020 |
| HTG Building Services Ltd | Construction | 2025 |
| HTI Services Ltd | Manufacturing | 2011 |
| HTML5 Media Ventures Limited | Information & communication | 2020 |
| Htmorris Furniture Ltd | Manufacturing | 2019 |
| HTP Group Limited | Wholesale & retail | 2021 |
| HTP Inc Limited | Wholesale & retail | 2011 |
| HTQ Solutions Limited | Information & communication | 2005 |
| HTR Aesthetics Ltd | Wholesale & retail | 2023 |
| HTV Catering Limited | Hospitality | 2015 |
| HTY Limited | Hospitality | 2021 |
| Hub Communal Services Ltd | Administrative & support | 2010 |
| Hub Creative Ltd | Information & communication | 2012 |
| Hub Wholesome Ltd | Hospitality | 2022 |
| Hub Workplace Ltd | Information & communication | 2021 |
| Hubble Accountancy Ltd | Professional & scientific | 2025 |
| Hubbots Limited | Information & communication | 2024 |
| Hubbub Props Ltd | Arts & recreation | 2024 |
| Hubpath Limited | Professional & scientific | 2025 |
| Huckle Property Holdings Limited | Real estate | 2025 |
| Huda Nyanzi Limited | Health & social care | 2019 |
| Hudd Ltd | Professional & scientific | 2023 |
| Huddlecraft CIC | Administrative & support | 2017 |
| Hudoon & Hussein Ltd | Health & social care | 2024 |
| Hudson Business Advice Limited | Professional & scientific | 2024 |
| Hudson Carpentry Ltd | Manufacturing | 2017 |
| Hudson Heating & Plumbing Supplies Limited | Wholesale & retail | 2005 |
| Hudson House Maintenance Limited | Real estate | 2014 |
| Hudson Leisure Limited | Hospitality | 2019 |
| Hudson Plumbing & Heating Services Limited | Construction | 2003 |
| Hudson Project Consulting Ltd | Professional & scientific | 2023 |
| Hudson Properties Ltd | Real estate | 2019 |
| Hudson Property Solutions Ltd | Hospitality | 2025 |
| Hudson Software Consulting Limited | Extraterritorial | 1996 |
| Hudson Vape Co Ltd | Other services | 2019 |
| HUE Beauty Limited | Other services | 2023 |
| Huffaz Enterprise Limited | Education | 2025 |
| Huffaz Travel Exchange Ltd | Administrative & support | 2020 |
| Hugh Griffiths Ltd | Other services | 2010 |
| Hughes Athletic Ltd | Education | 2021 |
| Hughes Carpentry Limited | Construction | 2013 |
| Hughes Commercial Investments Ltd | Real estate | 2017 |
| Hughes Heating and Plumbing (South West) Ltd | Construction | 2018 |
| Hughes Industries Ltd | Information & communication | 2018 |
| Hughes Lyne Corp (HLC) Limited | Manufacturing | 2025 |
| Hughes Price Walker Limited | Professional & scientific | 2003 |
| Hughes Roberts Limited | | 1973 |
| Hugo Armitage Technologies Limited | Information & communication | 2001 |
| Hugo Logistics Limited | Transport & logistics | 2021 |
| Hugo's Fruit and VEG Ltd | Wholesale & retail | 2017 |
| Huish Ltd | Real estate | 2024 |
| Hujra Bristol Ltd | Hospitality | 2025 |
| Hulatt Langan Developments Ltd. | Real estate | 2016 |
| Hulcoop Logistics Ltd | Transport & logistics | 2020 |