| Hslc Finance Ltd | Financial services | 2023 |
| Hspj Ltd | Financial services | 2025 |
| HSR Design (2004) Ltd | Professional & scientific | 2024 |
| Hsrm International Consultancy Limited | Professional & scientific | 2024 |
| HSS Properties (Southampton) Limited | Real estate | 2020 |
| HSY Enterprise Ltd | Other services | 2024 |
| HTC Brickwork Limited | Construction | 2019 |
| HTS Studios Ltd | Wholesale & retail | 1996 |
| HTT Property Development Ltd | Construction | 2025 |
| HUA WEI Limited | Administrative & support | 2009 |
| HUA Xing Limited | Health & social care | 2007 |
| Huangjindie Limited | Wholesale & retail | 2025 |
| Hub Europe Express (UK) Ltd | Transport & logistics | 2019 |
| Hubbly Bubbly Bazaar Limited | Wholesale & retail | 2022 |
| Hubbly Bubbly Limited | Wholesale & retail | 2019 |
| Hubeurope (FCM) Limited | Transport & logistics | 2026 |
| Hubeurope Distribution (UK) Limited | Transport & logistics | 2020 |
| Hubeurope Express (CI) Ltd | Transport & logistics | 2019 |
| Hubeurope Express (South) Ltd | Transport & logistics | 2022 |
| Hubeurope Fulfilment Ltd | Transport & logistics | 2019 |
| Hubeurope Wholesale (CI) Ltd | Transport & logistics | 2021 |
| Hublands Ltd | Construction | 2024 |
| Hubrion Limited | Information & communication | 2024 |
| Hubzoo Global Data Technologies Limited | Information & communication | 2015 |
| Hucropea Limited | Agriculture & fishing | 2016 |
| Huddle Business Solutions Limited | Information & communication | 2016 |
| Huddlestock Ltd | Information & communication | 2021 |
| Hudson People Limited | Administrative & support | 2022 |
| Hughes Aggregate and Concrete Limited | Extraterritorial | 2025 |
| Hughes Anaesthetic Services Ltd | Health & social care | 2019 |
| Hughes Brickwork Limited | Construction | 2023 |
| Hughes Real Estate Limited | Construction | 2021 |
| Hugie & Co Limited | Wholesale & retail | 2024 |
| Hugo Drive Limited | Transport & logistics | 2026 |
| Hugo Laurence Properties Limited | Real estate | 2021 |
| Hugo’S Dog Grooming Ltd | Other services | 2021 |
| Hugsien Properties Limited | Real estate | 2021 |
| Huhbub Ltd. | Administrative & support | 2015 |
| Huli Ltd | Transport & logistics | 2025 |
| Hulse Marine Services Limited | Manufacturing | 2004 |
| Hulse Road Management Company Limited | Households | 2004 |
| Humankind Economics Limited | Administrative & support | 2016 |
| Humarc UK Ltd | Education | 2011 |
| Humber Services Ltd | Transport & logistics | 2018 |
| Humbug of Lymington Ltd | Wholesale & retail | 2003 |
| Humidity Matters Ltd | Construction | 2019 |
| Hummingbird IT Limited | Information & communication | 2019 |
| Humphriss (Hythe) Limited | Real estate | 1960 |
| Hundal Ltd | Transport & logistics | 2019 |
| Hungry Harrys Ltd | Hospitality | 2023 |
| Hungry Monsters Limited | Hospitality | 2012 |
| Hungry Mule Limited | Hospitality | 2017 |
| Hunny Builders Ltd | Construction | 2024 |
| Hunter Carpentry Ltd | Construction | 2019 |
| Hunter Mcdougall Leisure Ltd | Arts & recreation | 2022 |
| Hunter Mcdougall Ltd | Financial services | 2018 |
| Hunter Professional Ltd | Administrative & support | 2023 |
| Hunters Auto Marine Engineering Limited | Transport & logistics | 2021 |
| Hunts Recruitment Limited | Professional & scientific | 2022 |
| Hunts Trading Limited | Real estate | 2001 |
| Hurley Consulting Ltd | Administrative & support | 2008 |
| Hurrell Architecture Limited | Professional & scientific | 2008 |
| Hurrells Yacht Repairs Ltd | Manufacturing | 2023 |
| Hursley Childcare Hub Ltd | Health & social care | 2019 |
| Hursley Hair Limited | Other services | 2014 |
| Hurst & Hurst (Okeford) LLP | | 2022 |
| Hurst & Hurst Construction Limited | Construction | 2020 |
| Hurst & Hurst Wollstonecraft Road Limited | Construction | 2019 |
| Hurst Auto Assistance Ltd | Wholesale & retail | 2019 |
| Hurst Way Management Company Limited | Real estate | 2026 |
| Hurtmore Holdings Ltd | Construction | 2015 |
| HUS Corporation Ltd | Construction | 2016 |
| Hush Clean Limited | Administrative & support | 2025 |
| Hutano Medicals Group Ltd | Health & social care | 2020 |
| Hutcheon Homes Ltd | Real estate | 2023 |
| Hutchinson Sustainability Solutions Ltd | Professional & scientific | 2018 |
| Hutfields (Wickham) Limited | Wholesale & retail | 2002 |
| Hutson Management Limited | Professional & scientific | 2004 |
| Huttonsworth Ltd | Wholesale & retail | 2021 |
| Huxtable Financial Consulting Ltd | Professional & scientific | 2018 |
| HV Broadcast Communication Ltd | Information & communication | 2016 |
| Hvsl Ltd | Information & communication | 2020 |
| Hvsl Property Limited | Real estate | 2023 |
| Hxlkcnails Ltd | Other services | 2025 |
| Hybrid Fitness Group Ltd | Arts & recreation | 2023 |
| Hyde Plastering and Rendering Ltd | Construction | 2024 |
| Hydro Centre Southern Limited | Wholesale & retail | 2021 |
| Hydrocleanuk Ltd | Administrative & support | 2026 |
| Hydrogen Future Ltd | Professional & scientific | 2005 |
| Hydrotech Pools Ltd | Construction | 2021 |
| Hygiene and Safety Consultants Ltd | Professional & scientific | 2019 |
| Hylt Properties Limited | Real estate | 2026 |
| Hylton Consulting Limited | Information & communication | 2016 |
| Hyperfast Media Limited | Information & communication | 2016 |
| Hyperhook Ltd | Information & communication | 2025 |
| Hypowa Technologies Ltd | Construction | 2020 |
| Hyrox Scaffolding Ltd | Construction | 2025 |
| HYS (Holdings) Limited | Real estate | 1995 |
| HYS Group Limited | Other services | 2014 |
| Hyso Roofing Ltd | Construction | 2026 |