| Hoppiness Brews CIC | Agriculture & fishing | 2025 |
| Hopton Rise (Malmesbury) Management Company Limited | Households | 2024 |
| Hopup Towers Limited | Real estate | 2018 |
| Horatio Investments Limited | Financial services | 2009 |
| Horfield and District Allotments Association Limited | Other services | 2003 |
| Horfield Castle Limited | Real estate | 2010 |
| Horfield Common Community Interest Company | Arts & recreation | 2015 |
| Horfield Convenience Store Ltd | Wholesale & retail | 2013 |
| Horfield Holdings Ltd | Real estate | 2024 |
| Horfield News Ltd | Wholesale & retail | 2026 |
| Horgan Tech Limited | Information & communication | 2017 |
| Horizon Capital Management Limited | Financial services | 2014 |
| Horizon Construction Bristol Ltd | Construction | 2015 |
| Horizon Corporate Advisory Limited | Professional & scientific | 2010 |
| Horizon Desserts Ltd | Hospitality | 2025 |
| Horizon Development Group CIC | Education | 2019 |
| Horizon Event Power Limited | Administrative & support | 2018 |
| Horizon Haul Limited | Wholesale & retail | 2026 |
| Horizon Integration Limited | Professional & scientific | 2009 |
| Horizon Landscape Design Limited | Administrative & support | 2026 |
| Horizon Landscapes East Anglia Limited | Administrative & support | 2003 |
| Horizon Legal Recruitment Limited | Administrative & support | 2026 |
| Horizon Mechanical Services (International) Limited | Manufacturing | 1976 |
| Horizon Press Ltd | Information & communication | 2023 |
| Horizon Properties and Holdings Ltd | Real estate | 2025 |
| Horizonflux Ltd | Wholesale & retail | 2024 |
| Horler Electrical Services Ltd | Construction | 2022 |
| Horn Aqua Tech (HAT) Ltd. | Transport & logistics | 2015 |
| Horn Connect Travel Ltd | Administrative & support | 2026 |
| Horn Security Ltd | Administrative & support | 2023 |
| Horna Bess Limited | Energy | 2022 |
| Hornbeam Investment Management Limited | Financial services | 2024 |
| Hornblower Business Brokers Limited | Professional & scientific | 2006 |
| Horner Tech Ltd | Information & communication | 2022 |
| Hornet Film Services Limited | Information & communication | 2024 |
| Horsebox Workshop Ltd | Manufacturing | 2023 |
| Horsed Ltd | Wholesale & retail | 2024 |
| Horsehead Nebula Limited | Professional & scientific | 2016 |
| Horsted Developments Limited | Construction | 2019 |
| Hortham Village Open Space Limited | Households | 2007 |
| Horton Barns Management Limited | Real estate | 2017 |
| Horton Construction Limited | Real estate | 2005 |
| Horton House Consortium Ltd | Real estate | 2023 |
| Horton House RTM Company Limited | Households | 2009 |
| Horton Quarter Estate Management Company Limited | Households | 2023 |
| Horus Food Ltd | Hospitality | 2023 |
| Horwood Group Ltd | Professional & scientific | 2026 |
| Horwood Homewares Limited | Wholesale & retail | 1935 |
| Hosie Properties Limited | Real estate | 2020 |
| Hospes Benevolus Ltd | Hospitality | 2025 |
| Hospital Lane Dental Clinic Limited | Health & social care | 2001 |
| Hospitality & Events Consultancy Ltd | Professional & scientific | 2019 |
| Hospitality Clearance Limited | Administrative & support | 2017 |
| Hospitality Labour Ltd | Administrative & support | 2024 |
| Hossains Pharma Ltd | Health & social care | 2026 |
| Host Clifton Ltd | Real estate | 2024 |
| Host Cookie Ltd | Information & communication | 2023 |
| Host Ready Collective Ltd | Administrative & support | 2026 |
| Hostic Limited | Information & communication | 2022 |
| Hostr Properties Ltd | Real estate | 2026 |
| Hot Air Investments Limited | Financial services | 2026 |
| Hot Black INK Consulting Limited | Real estate | 2016 |
| Hot Cat Media Ltd | Information & communication | 2013 |
| Hot Clay Ltd | Wholesale & retail | 2019 |
| Hot Diggidy Dog Catering Ltd | Hospitality | 2021 |
| Hot Flaverz Limited | Hospitality | 2025 |
| Hot Head Music Limited | Other services | 1993 |
| Hot in Saucy Meat Company Limited | Hospitality | 2015 |
| Hot LAP Motorsports Limited | Manufacturing | 2017 |
| Hot LAP Records Limited | Information & communication | 2025 |
| Hot Media Limited | Information & communication | 2013 |
| Hot Press Limited | Extraterritorial | 2009 |
| Hot Rock Company Limited | Manufacturing | 1994 |
| Hot Soup House Limited | Arts & recreation | 2016 |
| Hot Soup House Workshop C.I.C. | Administrative & support | 2022 |
| Hot TUB People Inc Limited | Other services | 2011 |
| Hotbox Social Ltd | Wholesale & retail | 2025 |
| Hotchkins Building Services Limited | Construction | 2007 |
| Hotchkins Developments Limited | Extraterritorial | 2022 |
| Hotchkins Group Limited | Extraterritorial | 2022 |
| Hotchkins Property Refurbishments and Specialist Care Limited | Extraterritorial | 2022 |
| Hotea Transport Ltd | Transport & logistics | 2025 |
| Hotel Cambridge Limited | Hospitality | 2017 |
| Hotel Metropole(Llandrindod)Limited | Hospitality | 1925 |
| Hotmate Heating Services Ltd | Construction | 2015 |
| Hotpod Yoga Bristol Ltd | Arts & recreation | 2018 |
| Hotshots Entertainment Ltd | Professional & scientific | 2022 |
| Hotspot Kabab Shop Ltd | Hospitality | 2025 |
| Hotspur Wood NO. 2 Residents Company Limited | Households | 1988 |
| Hotspur Wood NO. 3 Residents Company Limited | Households | 1988 |
| Hotwell Services Ltd | Wholesale & retail | 2020 |
| Hotwells & Cliftonwood Community Association Ltd. | Other services | 1994 |
| Hotwells Associates Limited | Professional & scientific | 1999 |
| Hotwells Children's House Limited | Education | 2024 |
| Hotwells Developments Limited | Real estate | 2006 |
| Hotwells Eatery Ltd | Hospitality | 2025 |
| Hotwells RD. Management Company Ltd | Real estate | 2013 |
| Houba Food Ltd | Hospitality | 2019 |
| Houghton Enterprises Ltd | Hospitality | 2025 |
| Houghton Property Developments South West Ltd | Real estate | 2023 |