| Hernandez Construction Limited | Construction | 2024 |
| Herne Homes Ltd | Real estate | 2021 |
| Hero One Transport Limited | Transport & logistics | 2023 |
| Heroes Wanted Ltd | Arts & recreation | 2023 |
| Heron Road Property Ltd | Real estate | 2021 |
| Heron Way Consultants Ltd | Financial services | 2009 |
| Heron Way Property Management Ltd | Financial services | 2013 |
| Herriard Sawmills Limited | Manufacturing | 1988 |
| Herschel Place Management Company (Bath) Limited | Households | 2006 |
| Hertford PPP Health Services Limited | Construction | 2003 |
| Herts & Essex PPP Health Services Limited | Construction | 2001 |
| Herts Security Solutions Ltd | Extraterritorial | 2026 |
| Hertz Electrical Limited | Construction | 2022 |
| Heru Finance Ltd | Financial services | 2019 |
| Herwood Design Ltd | Professional & scientific | 2026 |
| HES Technical Bristol Limited | Professional & scientific | 2009 |
| Hesflo (Installations) Limited | Construction | 1976 |
| Hestercombe Gardens Limited | Arts & recreation | 2003 |
| Hestercombe Gardens Trust | Arts & recreation | 1996 |
| Hestia Culinary Services Ltd | Hospitality | 2025 |
| Hestia Financial Planning Ltd | Financial services | 2023 |
| Hestia Maintenance Ltd | Water & waste | 2026 |
| Hete Ltd | Construction | 2017 |
| Hetty Beau Investments Ltd | Real estate | 2017 |
| Hettz Pizza Ltd | Hospitality | 2020 |
| Hevo Kebab Ltd | Hospitality | 2025 |
| Hewitt Accountancy Ltd | Professional & scientific | 2017 |
| Hewitt Developments Ltd | Construction | 2024 |
| Hewitt Electrical & Build Ltd | Construction | 2025 |
| Hewitt Electrical Services Ltd | Construction | 2025 |
| Hewitt Holdings Limited | Real estate | 2018 |
| Hewitts Accounts Tax Service(Bristol) Limited | Professional & scientific | 2017 |
| Hewland Films Limited | Information & communication | 2014 |
| Hewlett and Partners Ltd | Professional & scientific | 2021 |
| Hewlett Industries Ltd | Information & communication | 2022 |
| Hews Recruitment Limited | Administrative & support | 2016 |
| Hewson Bricklaying Contractors Limited | Construction | 2003 |
| HEX Cars Ltd | Other services | 2019 |
| Hexagon Leisure Services (Frome) Limited | Real estate | 1975 |
| Hexatuitions Online Ltd | Education | 2024 |
| Hextech Freight Ltd | Transport & logistics | 2025 |
| HEY! What? Ltd | Information & communication | 2018 |
| Heycentric Limited | Information & communication | 2019 |
| Heyco Capital Ltd | Real estate | 2021 |
| Heyflow Ltd | Information & communication | 2023 |
| Heyford Ltd | Professional & scientific | 2025 |
| Heyran Grocery Ltd | Wholesale & retail | 2025 |
| HF Brothers Ltd | Wholesale & retail | 2025 |
| HF Trust Limited | Health & social care | 1962 |
| HF Video Ltd | Information & communication | 2020 |
| Hfma Commercial Services Limited | Professional & scientific | 2007 |
| Hfma Ltd | Professional & scientific | 2003 |
| HFS Events Ltd | Professional & scientific | 2023 |
| HFT Property Limited | Real estate | 1996 |
| HFT Trading Limited | Wholesale & retail | 1992 |
| HGD Properties Ltd | Construction | 2026 |
| Hgdn Limited | Health & social care | 2019 |
| Hgdn Properties Limited | Real estate | 2020 |
| HGS Education Limited | Education | 2023 |
| HGV Property Solutions Ltd | Construction | 2020 |
| HGV Training Bristol Limited | Education | 2026 |
| HH Aquatics Ltd | Agriculture & fishing | 2024 |
| HH Direct Marketing Ltd | Professional & scientific | 2018 |
| HH Electrical Services Ltd | Construction | 2015 |
| HH Property Ventures Ltd | Real estate | 2025 |
| HH Transport Services Ltd | Transport & logistics | 2023 |
| Hhaf Limited | Real estate | 2022 |
| Hhajinur Limited | Health & social care | 2014 |
| HHH Property Limited | Real estate | 2016 |
| HHW Limited | Health & social care | 2020 |
| HI HI Food Ltd | Hospitality | 2025 |
| HI There Ltd | Professional & scientific | 2004 |
| HI Top Design Ltd | Professional & scientific | 2020 |
| Hi-Klean Limited | Administrative & support | 2018 |
| Hi-Sim Studios Ltd | Information & communication | 2010 |
| Hi-Tech Ceilings Limited | | 1984 |
| Hi-Tech Dental Laboratory Limited | Health & social care | 2022 |
| Hi-Tech Properties Limited | Real estate | 2001 |
| Hi-Tone (U.K.) Limited | | 1984 |
| Hias Property Ltd | Real estate | 2025 |
| Hibiki Films Ltd | Information & communication | 2001 |
| Hickery Brothers Scaffolding Limited | Construction | 2020 |
| Hickey Aviation Ltd | Manufacturing | 2026 |
| Hicks HAY Investments Limited | Wholesale & retail | 2019 |
| Hidden Bearings Ltd | Information & communication | 2026 |
| Hidden Depths Dive Centre Limited | Wholesale & retail | 2020 |
| Hidden Events & Promotions Limited | Arts & recreation | 2019 |
| Hidden Gems Property Limited | Real estate | 2018 |
| Hidden Temple Printing Ltd | Manufacturing | 2023 |
| Hide Market Management Limited | Real estate | 1989 |
| Hieron Property Ltd | Real estate | 2018 |
| Hieron Developments Limited | Construction | 2007 |
| Hifex International Ltd | Transport & logistics | 2025 |
| HIG Power Ltd | Professional & scientific | 2023 |
| Higgigroup Investments Limited | Financial services | 2017 |
| Higgigroup Operations Limited | Financial services | 2021 |
| Higgihaus Aparthotels (Bute Crescent) Limited | Hospitality | 2021 |
| Higgihaus Aparthotels (Clare ST) Limited | Real estate | 2021 |
| Higgihaus Aparthotels (ST Mary ST) Limited | Real estate | 2021 |
| Higgihaus Aparthotels Limited | Real estate | 2021 |