| HG Groundwork Limited | Construction | 2026 |
| HG London Properties 2 Limited | Real estate | 2017 |
| HG London Properties Limited | Real estate | 2015 |
| HG SPV 1 Ltd | Real estate | 2026 |
| HGB Building Solutions Ltd | Construction | 2022 |
| Hgbsb Co., Ltd | Wholesale & retail | 2023 |
| HGC (Manchester) Limited | Wholesale & retail | 2017 |
| Hgic Ltd | Real estate | 2021 |
| HGL Realisations 1 Limited | Financial services | 2018 |
| HGL Realisations 2 Limited | Information & communication | 2020 |
| HGM Construction & Maintenance Ltd | Construction | 2025 |
| Hgpp Ltd | Manufacturing | 2025 |
| HGR Properties Limited | Real estate | 2017 |
| HGS Payment Co Ltd | Financial services | 2024 |
| HGV Staffing Ltd | Administrative & support | 2020 |
| Hgvdriverrob Ltd | Administrative & support | 2026 |
| HGW Limited | Wholesale & retail | 2020 |
| HH & H Ltd | Wholesale & retail | 2017 |
| HH Capital Limited | Financial services | 2026 |
| HH Films Ltd | Administrative & support | 2009 |
| HH International Limited | Professional & scientific | 2022 |
| HH Law Limited | Professional & scientific | 2009 |
| HH Real Estate Ltd | Real estate | 2023 |
| Hhas Assets and Ventures Ltd | Financial services | 2021 |
| Hhchauhan Ltd | Health & social care | 2017 |
| HHE Number 1 LLP | | 2009 |
| HHF Private Limited | Wholesale & retail | 2026 |
| HHH Abergele Ltd | Hospitality | 2019 |
| HHH Properties Ltd | Real estate | 2016 |
| HHI Group Ltd | Other services | 2017 |
| HHL Holdco Limited | Financial services | 2026 |
| HHL Property Limited | Real estate | 2023 |
| Hhlc Ltd | Real estate | 2021 |
| HHM Trading Ltd | Wholesale & retail | 2025 |
| HHN Whimsical Ltd | Extraterritorial | 2024 |
| Hhnq Limited | Real estate | 2017 |
| Hhpropertyinvestors Limited | Real estate | 2025 |
| Hhrsg Ltd | Wholesale & retail | 2025 |
| HHT Support Ltd | Other services | 2024 |
| Hhub Investments Limited | Financial services | 2024 |
| Hhurong Limited | Wholesale & retail | 2023 |
| Hhussain Ltd | Health & social care | 2019 |
| HI Collection (UK) Ltd | Extraterritorial | 2011 |
| HI Energy Solutions Ltd | Construction | 2024 |
| HI Express Ltd | Transport & logistics | 2026 |
| HI G Kitchen Ltd | Hospitality | 2023 |
| HI Group Ltd | Wholesale & retail | 2016 |
| HI Properties NW Ltd | Real estate | 2017 |
| HI Security Solutions Ltd | Other services | 2020 |
| HI State Property Limited | Real estate | 2026 |
| HI TEC Procurement Support Limited | Professional & scientific | 2003 |
| HI Tech (NW) Ltd | Wholesale & retail | 2021 |
| HI VIS HQ Ltd | Information & communication | 2026 |
| Hi-Class Services Ltd | Professional & scientific | 2021 |
| Hi-Fye LLP | | 2026 |
| Hi-Gate Homes Ltd | Real estate | 2019 |
| Hi-Life Residential Ltd | Real estate | 2022 |
| Hi-Q HGV Ltd | Transport & logistics | 2016 |
| Hi-Spec Diamond Drilling Limited | Construction | 2026 |
| Hi-Tec Security Limited | Wholesale & retail | 1984 |
| Hi-Tech Autocare Ltd | Wholesale & retail | 2013 |
| Hi-Tech Fabrication Ltd | Manufacturing | 2005 |
| Hi-Tech Hosting Ltd | Information & communication | 2025 |
| Hi-Ya Rentals Ltd | Administrative & support | 2024 |
| HI2CLEAN Ltd | Administrative & support | 2026 |
| HI4 Limited | Professional & scientific | 2022 |
| HI5 Electrical Ltd | Construction | 2025 |
| HIA Homes Ltd | Real estate | 2021 |
| HIA Stretford Investment Ltd | Real estate | 2025 |
| Hiaf Events Ltd | Arts & recreation | 2025 |
| Hiaw Consulting Ltd | Professional & scientific | 2024 |
| Hiba Fashion Ltd | Wholesale & retail | 2024 |
| Hiba Travel Limited | Administrative & support | 2025 |
| Hibazee Limited | Wholesale & retail | 2025 |
| Hibrad Dynamic Ltd | Professional & scientific | 2021 |
| Hickory Grange (Whitefield) Management Ltd | Households | 2017 |
| Hickory Grange Development Limited | Real estate | 2021 |
| Hickson Chemical Supplies Limited | Extraterritorial | 1959 |
| Hickson International Limited | Professional & scientific | 1951 |
| Hickson Investments Limited. | Professional & scientific | 1985 |
| Hickson Limited | Manufacturing | 1937 |
| Hickson Pension Trustees Limited | Financial services | 2013 |
| Hickson Timber Products Limited | Financial services | 1931 |
| Hickson W.A. Chemicals Limited | Extraterritorial | 1988 |
| HID Heritage Group Ltd | Hospitality | 2018 |
| Hidaayah Journeys Ltd | Administrative & support | 2025 |
| Hidayah AL Noor Ltd | Wholesale & retail | 2025 |
| Hidayah Learning Centre CIC | Education | 2026 |
| Hidayat Television Limited | Information & communication | 2005 |
| Hidayat Welfare Society Ltd | Information & communication | 2010 |
| Hidden Corner MCR Ltd | Wholesale & retail | 2026 |
| Hidden Creative Ltd | Information & communication | 2007 |
| Hidden Duck Studio Ltd | Information & communication | 2026 |
| Hidden Form Limited | Information & communication | 2025 |
| Hidden Foundry Ltd | Information & communication | 2015 |
| Hidden GEM Albion Limited | Wholesale & retail | 2018 |
| Hidden Gorilla Ltd | Other services | 2009 |
| Hidden Grove Ltd | Hospitality | 2026 |
| Hidden Haven Ltd | Health & social care | 2018 |
| Hidden in the Haze Limited | Other services | 2021 |