| Hunza Travels & Tours International Ltd | Transport & logistics | 2020 |
| HUO Investments Ltd | Real estate | 2024 |
| Huohe Trade Ltd | Wholesale & retail | 2024 |
| Huphones Ltd | Professional & scientific | 2025 |
| Huracan Software Ltd | Information & communication | 2015 |
| Hurb Mart Ltd | Wholesale & retail | 2025 |
| Hurdley Sales Ltd | Wholesale & retail | 2025 |
| Hurdsfield Limited | Financial services | 2007 |
| Hurley Property Developers Ltd | Real estate | 2018 |
| Hurn Builders Ltd | Manufacturing | 2024 |
| Hurrahed Ltd | Real estate | 2024 |
| Hurray Enterprise Ltd | Information & communication | 2025 |
| Hurricane Digital BIT Width Limited | Wholesale & retail | 2023 |
| Hurst IT Limited | Information & communication | 2010 |
| Husda Global Ltd | Extraterritorial | 2019 |
| Hush and Hugs Ltd | Professional & scientific | 2025 |
| Hush Creative Consultancy Limited | Administrative & support | 2009 |
| Huski Events Limited | Hospitality | 2019 |
| Huski Homes Developments Ltd | Real estate | 2023 |
| Husnain Anwar Ltd | Wholesale & retail | 2025 |
| Husnain AWN U.A.E Ltd | Wholesale & retail | 2025 |
| Hussain Designer Limited | Wholesale & retail | 2025 |
| Hussain Jewellers Limited | Wholesale & retail | 2021 |
| Hussaini Mart Ltd | Wholesale & retail | 2026 |
| Hussaini Partners and Co Limited | Real estate | 2023 |
| Hussan Pari Ltd | Wholesale & retail | 2025 |
| Hussein Suleiman Limited | Information & communication | 2025 |
| Hussle London Ltd | Wholesale & retail | 2021 |
| Hustlers Production Ltd | Information & communication | 2024 |
| HUT Bazar (London) Ltd | Wholesale & retail | 2019 |
| Hutano Limited | Health & social care | 2020 |
| Hutcholux Ltd | Construction | 2025 |
| Huth & Hoehne Vertrieb Limited | Administrative & support | 2007 |
| Huttons Law Limited | Professional & scientific | 2015 |
| HUW Aled Accountants Ltd | Professional & scientific | 2020 |
| HUW Chiswell CYF | Information & communication | 2006 |
| HUW Evans Picture Agency Limited | Professional & scientific | 2000 |
| HUW Jones Lighting Ltd | Construction | 2021 |
| HUW Roberts Cyfrifydd CYF. | Professional & scientific | 2002 |
| HUW Williams Surveyors Limited | Professional & scientific | 2017 |
| Huwbach Ltd | Information & communication | 2022 |
| Huws Homes Ltd | Real estate | 2024 |
| Huxford Properties Limited | Real estate | 2022 |
| Huxley Ecommerce Limited | Wholesale & retail | 2018 |
| Huxly Rail Ltd | Construction | 2016 |
| Huyuqiang Ltd | Wholesale & retail | 2023 |
| HVB Locum Ltd | Health & social care | 2025 |
| HVM Installations Ltd | Construction | 2025 |
| HVT Holding Ltd | Wholesale & retail | 2024 |
| HW Delivery Services Ltd | Transport & logistics | 2023 |
| HW Interactive Ltd | Administrative & support | 2025 |
| HW Pharma Limited | Wholesale & retail | 2020 |
| HW WU Limited | Wholesale & retail | 2025 |
| HWB Sports Academy Ltd | Arts & recreation | 2024 |
| Hwbclwb CIC | Wholesale & retail | 2025 |
| HWC Management Ltd | Financial services | 2018 |
| HWH Creative Ltd | Information & communication | 2024 |
| HWM Aggregates and Recycling Limited | Water & waste | 2015 |
| HWP Accountancy Limited | Professional & scientific | 2023 |
| HX Drinks Ltd | Hospitality | 2018 |
| HX3 Labs Ltd | Information & communication | 2023 |
| HY Boiler Limited | Construction | 2018 |
| HY Day Project Ltd | Wholesale & retail | 2025 |
| HY Plumbing &Heating Limited | Construction | 2026 |
| Hy-Pre Beverages Ltd | Manufacturing | 2025 |
| Hyang Ltd | Wholesale & retail | 2019 |
| HYBR1D Powered by Chinkseymedia Ltd | Arts & recreation | 2026 |
| Hybrid Auto Dealers Limited | Wholesale & retail | 2023 |
| Hybrid FX Ltd | Financial services | 2018 |
| Hybrid Oils and Petroleum Ltd | Wholesale & retail | 2021 |
| Hybrid Productions Ltd | Arts & recreation | 2019 |
| HYC Ltd | Information & communication | 2015 |
| HYD 168 Ltd | Real estate | 2026 |
| Hyde Store Ltd | Wholesale & retail | 2019 |
| Hyderabad Enterprises Ltd | Wholesale & retail | 2026 |
| Hydeside Housing Ltd | Real estate | 2021 |
| Hydra FM Ltd | Construction | 2022 |
| Hydra Solutions Limited | Professional & scientific | 2018 |
| Hydrate Hub Limited | Wholesale & retail | 2019 |
| Hydratech Innovations Limited | Information & communication | 2021 |
| Hydria Life Limited | Professional & scientific | 2017 |
| Hydro Atom Pasiv Bridge Group Ltd | Construction | 2019 |
| Hydro Cleaning Services Ltd | Other services | 2017 |
| Hydro Healing Ltd | Other services | 2025 |
| Hydro Protect Group Ltd | Other services | 2019 |
| Hydro Urban Limited | Wholesale & retail | 2013 |
| Hydrogen Pumping Systems Ltd | Professional & scientific | 2024 |
| Hydrologistics Africa Limited | Water & waste | 2017 |
| Hyfforddiant AOC Cyfyngedig / ALW Training Limited | Education | 2025 |
| Hyfo Ltd | Manufacturing | 2026 |
| Hygenixpro Ltd | Administrative & support | 2025 |
| Hygge for Home Ltd | Professional & scientific | 2020 |
| HYGGEAT15 Ltd | Wholesale & retail | 2019 |
| Hyggehome Ltd | Wholesale & retail | 2025 |
| Hygiene Pro Clean ( Wales ) Limited | Other services | 2016 |
| Hygrade Plumbing Ltd | Construction | 2018 |
| Hyhaul Mobility Limited | Energy | 2021 |
| Hylton Belsay Ltd | Wholesale & retail | 2024 |
| Hylton Enterprise Autos Ltd | Wholesale & retail | 2019 |
| Hylton Limited | Wholesale & retail | 2017 |