| Hairy Bear Tree Surgery Limited | Agriculture & fishing | 2017 |
| Haji Holdings Limited | Wholesale & retail | 2023 |
| Haji Properties Ltd | Real estate | 2020 |
| Haji Scrap Ltd | Water & waste | 2025 |
| Hajj & Umrah Essentials Ltd | Wholesale & retail | 2025 |
| Hajjar Ltd | Health & social care | 2022 |
| Hakaviva Worldwide Ltd | Wholesale & retail | 2025 |
| Hakeem's Spice Ltd | Hospitality | 2020 |
| Hakimi Autos Ltd | Wholesale & retail | 2024 |
| Hakuna Matata Promotions Limited | Information & communication | 2022 |
| HAKUNA1 Limited | Health & social care | 2013 |
| HAL Freight Limited | Transport & logistics | 2020 |
| HAL James Construction Ltd | Construction | 2021 |
| Halal Certification Europe Ltd | Professional & scientific | 2014 |
| Halal Fish & Chips Ltd | Hospitality | 2018 |
| Halal Meat Joint Ltd | Wholesale & retail | 2022 |
| Halal NOW Ltd | Wholesale & retail | 2020 |
| Halal Supplied Ltd | Manufacturing | 2022 |
| Halal Supply Chain Ltd | Wholesale & retail | 2022 |
| Halata Properties Ltd | Real estate | 2021 |
| Halcyon Accountants and Business Advisers Ltd | Professional & scientific | 2010 |
| Halcyon Commercial Limited | Construction | 2018 |
| Halcyon Commercial Property Limited | Real estate | 2020 |
| Halcyon Days Community Opportunities Ltd | Health & social care | 2019 |
| Halcyon Project Management Limited | Households | 2021 |
| Haleth Couriers Limited | Manufacturing | 2022 |
| Halewood Teamwork Ltd | Wholesale & retail | 2014 |
| Haley Sharpe Design Limited | Professional & scientific | 1984 |
| Haley Sharpe Group Holdings Limited | Professional & scientific | 2022 |
| Halfcroft Electrical Ltd | Construction | 2026 |
| Halfcroft Holdings Ltd | Financial services | 2023 |
| Halfcroft Property Ltd | Real estate | 2020 |
| Halford Jones Architecture Ltd | Professional & scientific | 2016 |
| Halfpenny Associates (Nottingham) Limited | Wholesale & retail | 1986 |
| Halfway Hotel Limited | Hospitality | 2019 |
| Halgan Ltd | Transport & logistics | 2025 |
| Hali Medical Services Ltd | Health & social care | 2016 |
| Halima Global Solutions Limited | Wholesale & retail | 2025 |
| Halima.Sm Ltd | Health & social care | 2022 |
| Halisa Ltd | Wholesale & retail | 2020 |
| Halitch Ltd. | Information & communication | 2016 |
| Halkin Tyre Services Limited | Wholesale & retail | 2014 |
| Hall & Davies Holdings Ltd | Financial services | 2021 |
| Hall & Home Lettings Limited | Real estate | 2024 |
| Hall Automations Ltd | Manufacturing | 2025 |
| Hall Farm Close Management Company Limited | Households | 2020 |
| Hall Farm Dairy Limited | Professional & scientific | 2016 |
| Halladale Homes Ltd | Real estate | 2021 |
| Hallam Read Ltd | Other services | 2007 |
| Hallan Media Ltd | Professional & scientific | 2024 |
| Hallaton Manor Estate Limited | Professional & scientific | 2004 |
| Hallerbos Limited | Wholesale & retail | 2021 |
| Halley Online Limited | Wholesale & retail | 2022 |
| Halliwell Builders Ltd | Construction | 2018 |
| Hallmac Ltd | Wholesale & retail | 2025 |
| Hallmark Consumer Services Limited | Administrative & support | 1992 |
| Hallmark GAS Safety Certificates Limited | Construction | 2024 |
| Hallmark Global Ltd | Real estate | 2021 |
| Hallmark Investment Properties Limited | Construction | 2020 |
| Hallmark Rental Properties Limited | Real estate | 2020 |
| Hallmark Roofing & Building Ltd | Construction | 2019 |
| Hallstone Logistics Ltd | Transport & logistics | 2024 |
| Hallsville Anchor Ltd | Wholesale & retail | 2024 |
| Halmshaw Consulting Services Ltd | Administrative & support | 2025 |
| Halo (Derbyshire) Limited | Other services | 2014 |
| Halo Fire Ltd | Manufacturing | 2010 |
| Halo HR Consultancy Ltd | Administrative & support | 2025 |
| Halo Management Consultants Ltd | Professional & scientific | 2009 |
| Halo Pubs Ltd | Hospitality | 2022 |
| Halo Strategy Ltd | Professional & scientific | 2013 |
| Halogrid Technologies Ltd | Information & communication | 2026 |
| Haloras Limited | Hospitality | 2024 |
| Halstead Chase Limited | Health & social care | 2015 |
| Halton Care Ltd | Financial services | 2026 |
| Hamada Care Ltd | Health & social care | 2025 |
| Hamanpreet Ltd | Health & social care | 2025 |
| Hamary Ltd | Real estate | 2026 |
| Hambleton Management Ltd | Professional & scientific | 2017 |
| Hambleton Property Investments Limited | Real estate | 2015 |
| Hambleton Thomas Sourcing Ltd | Real estate | 2025 |
| Hambra Properties Ltd | Real estate | 2018 |
| Hamdan Artisan Butchers Ltd | Manufacturing | 2023 |
| Hames Partnership Anstey Limited | Professional & scientific | 2021 |
| Hames Sweet Station Ltd | Wholesale & retail | 2017 |
| Hamida.Am Ltd | Financial services | 2020 |
| Hamilton After School Club Limited | Health & social care | 2013 |
| Hamilton Clinical Ltd | Professional & scientific | 2026 |
| Hamilton Community Homes Limited | Health & social care | 2005 |
| Hamilton Grace Associates Limited | Information & communication | 2018 |
| Hamilton Health Limited | Wholesale & retail | 2009 |
| Hamilton Healthcare (UK) Ltd | Health & social care | 2006 |
| Hamilton Holdings Ltd | Real estate | 2018 |
| Hamilton Motoring Ltd | Wholesale & retail | 2018 |
| Hamilton Office Park Management Company (Leicester) Limited | Construction | 2007 |
| Hamilton Projects (Europe) Limited | Real estate | 2005 |
| Hamilton Property Partnership Limited | Real estate | 2021 |
| Hamilton Skip & Grab Hire Limited | Transport & logistics | 2024 |
| Hamilton's Honour Ltd | Arts & recreation | 2019 |
| Hamiltons Business Consultants Ltd | Administrative & support | 2022 |
| Hamira Limited | Wholesale & retail | 2019 |