| Historic Pools CIC | Administrative & support | 2025 |
| History of Africa Ltd | Wholesale & retail | 2023 |
| HIT 'EM UP Holdings Limited | Financial services | 2025 |
| HIT Apparel & Nutrition Limited | Other services | 2011 |
| HIT IT Holidays Ltd | Administrative & support | 2025 |
| HIT the Sack Bedding Products Limited | Administrative & support | 2012 |
| HIT the Sack Bedding UK Limited | Wholesale & retail | 2026 |
| Hitch Technologies Limited | Information & communication | 2012 |
| Hitcham Homes Ltd | Construction | 2015 |
| Hitchin Industrial & Business Estates Limited | Real estate | 2018 |
| Hitech Bargain Ltd | Wholesale & retail | 2020 |
| Hitechh Ltd | Extraterritorial | 2022 |
| Hitman Ltd | Wholesale & retail | 2024 |
| Hitman Properties Ltd | Real estate | 2020 |
| Hitmars Trade Ltd | Wholesale & retail | 2026 |
| Hiumandy Studio Ltd | Professional & scientific | 2023 |
| Hive Academy UK Ltd | Education | 2023 |
| Hive and Honey Limited | Agriculture & fishing | 2022 |
| Hive Apartments Limited | Real estate | 2006 |
| Hive Bethnal Green Limited | Real estate | 2014 |
| Hive Bidco Limited | Financial services | 2015 |
| Hive Clinic Ltd | Other services | 2025 |
| Hive Commerce Ltd | Wholesale & retail | 2024 |
| Hive Construction NW Ltd | Construction | 2022 |
| Hive Creative Studios Ltd | Information & communication | 2026 |
| Hive Design and Build Limited | Construction | 2022 |
| Hive Developments & Investments Ltd | Real estate | 2018 |
| Hive Digital Media Limited | Information & communication | 2019 |
| Hive DXB Recruitment Ltd | Administrative & support | 2024 |
| Hive Equestrian Limited | Other services | 2023 |
| Hive Home & Gardens Ltd | Administrative & support | 2020 |
| Hive Homes (Greater Manchester) LLP | | 2018 |
| Hive Interior Design Ltd | Construction | 2026 |
| Hive Legal Ltd | Administrative & support | 2020 |
| Hive MCR Limited | Real estate | 2020 |
| Hive Mind Games Ltd | Manufacturing | 2025 |
| Hive Motors Limited | Wholesale & retail | 2026 |
| Hive Projects Limited | Professional & scientific | 2019 |
| Hive Properties Manchester Ltd | Households | 2025 |
| Hive Topco Limited | Financial services | 2015 |
| HIVE5 Ltd | Agriculture & fishing | 2023 |
| Hivebyte Technology Ltd | Information & communication | 2023 |
| Hivelearningmcr Ltd | Education | 2023 |
| Hixo Law Limited | Professional & scientific | 2012 |
| Hiya Future Company Ltd | Manufacturing | 2022 |
| Hiya Group Holdings Ltd | Administrative & support | 2021 |
| Hiyve Mortgage Company Ltd | Financial services | 2022 |
| HIZ Properties UK Limited | Households | 2023 |
| Hiza Ltd | Wholesale & retail | 2023 |
| Hizl Ltd | Hospitality | 2023 |
| HJ Catering Ltd | Hospitality | 2020 |
| HJ Cleaners Ltd | Administrative & support | 2023 |
| HJ Gift Mart Ltd | Wholesale & retail | 2025 |
| HJ Healthcare Ltd | Professional & scientific | 2025 |
| HJ Leisure Ltd | Hospitality | 2020 |
| HJ Logistics Limited | Transport & logistics | 2025 |
| Hj&N Ltd | Health & social care | 2022 |
| HJA Car Sales Ltd | Wholesale & retail | 2026 |
| HJA Properties Ltd | Real estate | 2017 |
| HJB Turbines Ltd | Energy | 2023 |
| HJC Radiology Ltd | Health & social care | 2021 |
| HJF Darling Limited | Other services | 2014 |
| HJI Holdings Ltd | Professional & scientific | 2025 |
| Hjrc Holding Limited | Financial services | 2021 |
| Hjrc Property Limited | Real estate | 2021 |
| Hjrcj Ltd | Construction | 2025 |
| Hjruisg Ltd | Wholesale & retail | 2025 |
| HJW Commercial Ltd | Wholesale & retail | 2026 |
| HK & Co Global Ltd | Other services | 2024 |
| HK & GK Holdings Limited | Financial services | 2019 |
| HK & SV Consultancy Ltd | Administrative & support | 2016 |
| HK Asset Group Ltd | Real estate | 2025 |
| HK Cars Limited | Wholesale & retail | 2012 |
| HK Communications Limited | Wholesale & retail | 2015 |
| HK Designer Ltd | Wholesale & retail | 2025 |
| HK Family Holdings Ltd | Financial services | 2026 |
| HK Financial Solutions Limited | Financial services | 2012 |
| HK Heating and Plumbing Services Ltd | Construction | 2019 |
| HK Housing Ltd | Real estate | 2022 |
| HK Labels Ltd | Wholesale & retail | 2023 |
| HK MBO Limited | Financial services | 2016 |
| HK Medical Ltd | Health & social care | 2015 |
| HK New Way Ltd | Hospitality | 2026 |
| HK Pall EX Limited | Construction | 2026 |
| HK Performance Limited | Wholesale & retail | 2020 |
| HK Prestige Cars Ltd | Wholesale & retail | 2025 |
| HK Study Abroad Ltd | Education | 2026 |
| HK101 Ltd | Information & communication | 2020 |
| Hkan Ltd | Wholesale & retail | 2025 |
| HKG Gallery Ltd | Wholesale & retail | 2023 |
| HKG Social Care Ltd | Health & social care | 2023 |
| HKH Holdings Ltd | Construction | 2018 |
| HKJ Consultancy Ltd | Public administration | 2022 |
| HKK Limited | Wholesale & retail | 2025 |
| HKM Signs and Installation Limited | Professional & scientific | 2019 |
| Hkmc Properties Limited | Real estate | 2017 |
| Hkmc Solutions Limited | Information & communication | 2013 |
| HKN Partners Ltd | Real estate | 2016 |
| HKS Smile Therapist Ltd | Health & social care | 2014 |
| HKW Car Sales Ltd | Wholesale & retail | 2022 |