| Hulk Electrical Ltd | Construction | 2024 |
| Hull Dance CIC | Arts & recreation | 2018 |
| Hull Group Ltd | Financial services | 2025 |
| Hull Maternity Development Limited | Real estate | 2000 |
| Hull Reserve Power Limited | Energy | 2011 |
| Hultsch Conveyor Systems Limited | Manufacturing | 2021 |
| HUM4NS Ltd | Wholesale & retail | 2021 |
| Human + AI for Impact Ltd | Professional & scientific | 2025 |
| Human Beauty Ltd | Wholesale & retail | 2020 |
| Human COG Ergonomics Ltd | Professional & scientific | 2025 |
| Human Factors Centre Ltd | Professional & scientific | 2017 |
| Human Factors Centre Training Ltd | Administrative & support | 2018 |
| Human Factors Studio Ltd | Information & communication | 2025 |
| Human Family Ltd | Extraterritorial | 2023 |
| Human First Group Limited | Administrative & support | 2020 |
| Human Kind Festival CIC | Arts & recreation | 2022 |
| Human Rights and Development Mission Ltd | Information & communication | 2020 |
| Human Technics Ltd | Education | 2009 |
| Human Terrain Consulting Ltd | Education | 2025 |
| Humandetail Ltd | Information & communication | 2026 |
| Humanihut (UK) Ltd | Wholesale & retail | 2022 |
| Humanitai CIC | Health & social care | 2025 |
| Humanitarian AID Relief Trust | Other services | 2004 |
| Humanitarian Bristol Ltd | Education | 2020 |
| Humanities and Science Publishing House Ltd | Information & communication | 2018 |
| Humano Systems Limited | Information & communication | 2024 |
| Humanoid Technologies Ltd | Information & communication | 2025 |
| Humber Technology Limited | Administrative & support | 1997 |
| Humberstones (Business Sales) Limited | Administrative & support | 1971 |
| Humble BEE Films Limited | Information & communication | 2008 |
| Humble BEE Pegasus Limited | Information & communication | 2022 |
| Humble BEE Wild Ltd | Information & communication | 2023 |
| Humble Home Farm Ltd | Agriculture & fishing | 2020 |
| Humble Way Ltd | Other services | 2020 |
| Humbleroots Group Limited | Professional & scientific | 2025 |
| Humdrum Productions Ltd | Arts & recreation | 2023 |
| Hummingbird Events Limited | Administrative & support | 2017 |
| Hummingbird Family Ventures Ltd | Real estate | 2023 |
| Hummingbird Films Limited | Information & communication | 1989 |
| Humphrey Holdings Limited | Health & social care | 2021 |
| Humphrey Investments Limited | Financial services | 2021 |
| HUN Truck Ltd | Transport & logistics | 2011 |
| Hung KEE Company Limited | Hospitality | 2024 |
| Hungry Horace Ltd | Hospitality | 2020 |
| Hunky Dory Limited | Information & communication | 2006 |
| Hunnifer Technology Procurement Limited | Information & communication | 1997 |
| Hunstrete Estates Limited | Real estate | 1989 |
| Hunstrete Holdings Limited | Professional & scientific | 2004 |
| Hunt Financial Planning Limited | Financial services | 2021 |
| Hunt Gatcombe Limited | Real estate | 2019 |
| Hunt Homes South West Limited | Construction | 1986 |
| Hunt Inspired Engineering Ltd | Professional & scientific | 2012 |
| Hunter Barrington Investment Management Ltd | Extraterritorial | 2007 |
| Hunter Barrington Ltd. | Financial services | 1989 |
| Hunter Dumine Group Ltd | Administrative & support | 2017 |
| Hunter Gatherer Cooking Ltd | Hospitality | 2020 |
| Hunter Health Ltd | Health & social care | 2023 |
| Hunter Hot Tubs Ltd | Wholesale & retail | 2024 |
| Hunter Houses Holiday Homes Limited | Hospitality | 2023 |
| Hunter John Consulting Ltd | Professional & scientific | 2025 |
| Hunter Leahy Estate Agents Limited | Real estate | 2014 |
| Hunter Mann Recruitment Ltd | Administrative & support | 2009 |
| Hunter Operations Limited | Other services | 2016 |
| Hunter Selection Limited | Administrative & support | 2004 |
| Hunter Selection Trustees Limited | Administrative & support | 2020 |
| Hunter Sky Limited | Administrative & support | 2010 |
| Hunter Smith Surgery Limited | Health & social care | 2023 |
| Hunter Stables Ltd | Manufacturing | 2014 |
| Hunter USA Ltd | Administrative & support | 2020 |
| Hunter Yard Ltd | Agriculture & fishing | 2019 |
| Hunters Copse (Huntley) Management Company Limited | Households | 2023 |
| Hunting World Ltd | Wholesale & retail | 2020 |
| Huntley Lodge Limited | Real estate | 2014 |
| Hunts Letting Limited | Real estate | 2023 |
| Hunts News Ltd | Wholesale & retail | 2009 |
| Huntsman's Properties Limited | Real estate | 2026 |
| Huntswood Park Limited | Arts & recreation | 2016 |
| Hunwicks Consulting Limited | Other services | 2019 |
| Hurleyhouse Properties Limited | Real estate | 2004 |
| Hurr Tech Ltd | Wholesale & retail | 2015 |
| Hurricane Global Video Ltd | Information & communication | 2024 |
| Hurricane Medical Video Ltd | Information & communication | 2024 |
| Hurricane Social Ltd | Information & communication | 2024 |
| Hurricanes Basketball Ltd | Arts & recreation | 2025 |
| Hurricanes Sport Ltd | Education | 2019 |
| Hursh Construction Ltd | Administrative & support | 2012 |
| Hurson & Napper Limited | Real estate | 2016 |
| Hurson & Napper Properties Ltd | Real estate | 2021 |
| Hurst & Sons Limited | Arts & recreation | 2021 |
| Hurst Manufacturing and Technology Services Limited | Information & communication | 2017 |
| Hurst Studio Ltd | Professional & scientific | 2016 |
| Hushtherapy Limited | Extraterritorial | 2017 |
| Hussain & Issa Services Ltd | Transport & logistics | 2023 |
| Hussain Building Limited | Real estate | 2025 |
| Hussain Global Retail Limited | Wholesale & retail | 2026 |
| Hussain Web Designs Limited | Information & communication | 2025 |
| Hussein Medical Limited | Health & social care | 2023 |
| Hutchinson Legal & Associates Limited | Professional & scientific | 2012 |
| Huthwaite Freston Williams-Jones Limited | Construction | 2016 |
| Hutton Building Services (Bristol) Limited | Construction | 2015 |