| Hope Collier Design Ltd | Real estate | 2023 |
| Hope Collier Ltd | Financial services | 2024 |
| Hope Mackenzie Investments Ltd | Financial services | 2026 |
| Hope Shaw Limited | Professional & scientific | 1994 |
| Hopnshop.Online Limited | Wholesale & retail | 2021 |
| Hoppers Crossing Logistics Ltd | Transport & logistics | 2024 |
| Horeca Catering Ltd | Wholesale & retail | 2020 |
| Horizen Capital Holding Limited | Financial services | 2025 |
| Horizon Digital BR Ltd | Wholesale & retail | 2025 |
| Horizon Health Economics Ltd | Professional & scientific | 2025 |
| Horizon Homecare (Southern) Ltd | Health & social care | 2009 |
| Horizon Integrated Solutions Ltd | Administrative & support | 2023 |
| Horizon Management Group Ltd | Information & communication | 2026 |
| Horizon Park Management Company Limited | Real estate | 2016 |
| Horizon Walk Group Limited | Information & communication | 2023 |
| Horizonpath Ltd | Wholesale & retail | 2025 |
| Horton & Harman Limited | Professional & scientific | 2023 |
| Horton Acquisitionco Limited | Financial services | 2025 |
| Horton Holdco Limited | Financial services | 2025 |
| Horwood Social Enterprises Ltd | Professional & scientific | 2023 |
| Host & Co Poole Ltd | Households | 2021 |
| Hostpik Ltd | Information & communication | 2024 |
| Hota International Limited | Manufacturing | 2014 |
| Houghton Home Improvements Limited | Construction | 2016 |
| Houghton Software Services Limited | Information & communication | 2020 |
| House of BEN Limited | Professional & scientific | 2019 |
| House of Enchanted Ltd | Wholesale & retail | 2020 |
| House of Gemz Limited | Wholesale & retail | 2023 |
| House Poole Ltd | Wholesale & retail | 2026 |
| House SAX Wealth Limited | Real estate | 2024 |
| House V4PE Limited | Wholesale & retail | 2025 |
| Houseglow Ltd | Administrative & support | 2025 |
| Hove to Management Company Limited | Real estate | 2008 |
| HOW Builders Ltd. | Construction | 2013 |
| HOW to Data Ltd | Information & communication | 2020 |
| HOW to WIN at Ltd | Other services | 2024 |
| Howard Holdings (Poole) Limited | Education | 2019 |
| Howard Lock Consulting Limited | Information & communication | 2018 |
| Howard Skips Limited | Water & waste | 2009 |
| Howarth Construction Contracts Ltd | Construction | 2017 |
| Howonearth Films Limited | Information & communication | 2014 |
| Hoyden Properties Ltd | Real estate | 2024 |
| Hoyle & Co (Bournemouth) Limited | Real estate | 1955 |
| HP Detailing Ltd | Administrative & support | 2026 |
| HPM Group Ltd | Other services | 2022 |
| HPM Investments Limited | Wholesale & retail | 2002 |
| HPS DEV Co 1 Limited | Financial services | 2020 |
| HPS DEV Co 2 Limited | Financial services | 2020 |
| HPS SPV 1 Ltd | Financial services | 2019 |
| HPS SPV 10 Ltd | Real estate | 2022 |
| HPS SPV 11 Ltd | Real estate | 2022 |
| HPS SPV 12 Ltd | Financial services | 2025 |
| HPS SPV 13 Ltd | Financial services | 2025 |
| HPS SPV 14 Ltd | Financial services | 2025 |
| HPS SPV 15 Ltd | Financial services | 2025 |
| HPS SPV 16 Ltd | Financial services | 2025 |
| HPS SPV 17 Ltd | Financial services | 2025 |
| HPS SPV 18 Ltd | Financial services | 2025 |
| HPS SPV 19 Ltd | Financial services | 2025 |
| HPS SPV 2 Ltd | Financial services | 2019 |
| HPS SPV 20 Ltd | Financial services | 2025 |
| HPS SPV 3 Ltd | Financial services | 2019 |
| HPS SPV 4 Ltd | Financial services | 2019 |
| HPS SPV 5 Ltd | Financial services | 2019 |
| HPS SPV 7 Ltd | Financial services | 2020 |
| HPS SPV 8 Ltd | Financial services | 2023 |
| HPS SPV 9 Limited | Financial services | 2020 |
| HR Ecom Digital Ltd | Wholesale & retail | 2025 |
| HR Wheels Ltd | Wholesale & retail | 2023 |
| Hrise Limited | Administrative & support | 2024 |
| HRS Heat Exchangers Limited | Wholesale & retail | 1997 |
| HRS Hevac Limited | Wholesale & retail | 1997 |
| HRS International Limited | Professional & scientific | 2002 |
| HRS Investments Limited | Professional & scientific | 1999 |
| HS Accounting Ltd | Professional & scientific | 2021 |
| HS Moore Ltd | Professional & scientific | 2005 |
| HS Poole Ltd | Hospitality | 2026 |
| HSB Consulting & Project Services Ltd | Professional & scientific | 2026 |
| HSB Home Improve Limited | Construction | 2012 |
| HSF Digital Limited | Wholesale & retail | 2025 |
| HTH Dynamics Limited | Professional & scientific | 2020 |
| Huckleberry Ponies Ltd | Agriculture & fishing | 2025 |
| Hudl Commerce Ltd | Wholesale & retail | 2026 |
| Hudson Electronics UK Limited | Manufacturing | 2022 |
| Hudson Homes and Interiors Ltd | Construction | 2020 |
| Hudson Strategic Advisory Limited | Professional & scientific | 2025 |
| HUE Waves Limited | Wholesale & retail | 2023 |
| Huffkin Homes Ltd | Construction | 2024 |
| Huffkin Limited | Professional & scientific | 2023 |
| Huge Property Ltd | Real estate | 2022 |
| Hugh Symons Exchange Limited | Information & communication | 2017 |
| Hugh Symons Group Limited | Financial services | 2016 |
| Hugh Symons Holdings Limited | Other services | 2024 |
| Hugh Symons Information Management Ltd | Information & communication | 1974 |
| Hugh Symons Lending Limited | Financial services | 2016 |
| Hughes (Surveyors and Architecture) Ltd | Professional & scientific | 2024 |
| Hugo Ellis Racing Ltd | Arts & recreation | 2021 |
| HUM Studios Ltd | Information & communication | 2017 |
| Human 2.0 Ltd | Wholesale & retail | 2020 |
| Humint Pro Ltd | Wholesale & retail | 2025 |