| H&C Excavations Ltd | Transport & logistics | 2026 |
| H&H Abbey Village Ltd | Hospitality | 2024 |
| H&H Autos Limited | Wholesale & retail | 2019 |
| H&S Domestics Limited | Manufacturing | 2012 |
| H.S.Khinda Ltd | Construction | 2019 |
| H10 Roofing Contractors Ltd | Construction | 2015 |
| H2 Removals& Storage Ltd | Transport & logistics | 2013 |
| H20 CDC Ltd | Other services | 2023 |
| H4L Limited | Health & social care | 2019 |
| Habarana Limited | Professional & scientific | 2022 |
| Habwood Limited | Administrative & support | 2007 |
| HAC International Ltd | Arts & recreation | 2015 |
| Hadfield Trading (LEA) Limited | Wholesale & retail | 2008 |
| Hadlow and SON Landscapes Ltd | Administrative & support | 2021 |
| Haha Group Limited | Other services | 2013 |
| Hailwood Leisure Limited | Administrative & support | 2026 |
| Hainholz Ltd | Wholesale & retail | 2023 |
| Hainslack Developments Ltd | Hospitality | 2011 |
| Hair by Michele Gregory Limited | Other services | 2003 |
| Hairpen Ltd | Other services | 2022 |
| Halaric John Limited | Financial services | 2021 |
| Halcyon Therapies Ltd | Health & social care | 2018 |
| Hale Landscapes Ltd | Administrative & support | 2026 |
| Haley Brothers Transport Limited | Transport & logistics | 2011 |
| Hall Farm Services Limited | Agriculture & fishing | 2016 |
| Hall Technologies Limited | Information & communication | 2012 |
| Halo Hair Lounge Ltd | Other services | 2022 |
| Halo Lancaster Ltd | Professional & scientific | 2000 |
| Halo Secure Ltd | Wholesale & retail | 2010 |
| Halpin Therapies Limited | Health & social care | 2024 |
| Halsall Housing Ltd | Real estate | 2025 |
| Halsall Truckers Ltd | Administrative & support | 2016 |
| Halson Services Limited | Professional & scientific | 1972 |
| Hamilton Financial Solutions (UK) Ltd | Financial services | 2020 |
| Hamilton-Clark Ltd | Professional & scientific | 2004 |
| Hampshire Front Doors Ltd | Manufacturing | 2022 |
| Hampshire Global Ltd | Professional & scientific | 2013 |
| Hampshire HAY & Straw Limited | Wholesale & retail | 2013 |
| Hampson & Mealey Limited | Transport & logistics | 2020 |
| Hampton Roofing and Constuction Ltd | Construction | 2017 |
| Hancool Logistic Ltd | Transport & logistics | 2017 |
| Handl Communications Limited | Administrative & support | 2019 |
| Handley's Bakery Ltd | Manufacturing | 2008 |
| Hands-On Healthcare Recruitment Ltd | Administrative & support | 2016 |
| Hang SEN Ltd | Hospitality | 2026 |
| Hanleo Consulting Limited | Administrative & support | 2020 |
| Hanneman Ltd | Information & communication | 2011 |
| Hannon Holmes Developments Limited | Real estate | 2020 |
| Hannon Holmes Lettings Limited | Households | 2022 |
| Hannon Holmes Limited | Real estate | 2007 |
| Hapeke IT Limited | Information & communication | 2013 |
| Hapi Bars & Leisure Ltd | Hospitality | 2025 |
| Happy Alina Ltd | Other services | 2026 |
| Happy Homecare UK Ltd | Health & social care | 2011 |
| Happy Tails Emporium Ltd | Wholesale & retail | 2023 |
| Happygems Day Care Limited | Education | 2012 |
| Harbison Goods Ltd | Extraterritorial | 2024 |
| Harbour Bell Ltd | Wholesale & retail | 2025 |
| Harbour Lets Limited | Real estate | 2016 |
| Harbour Medical Ltd | Health & social care | 2015 |
| Harchris Limited | Professional & scientific | 1986 |
| Harcourt Capital Investments Limited | Financial services | 2010 |
| Hardacre's Plumbers (North West) Ltd. | Construction | 1998 |
| Hardman Marsden & Co.,Limited | | 1956 |
| Harkin LGV Limited | Transport & logistics | 2017 |
| Harlec Ltd | Administrative & support | 2023 |
| Harlee Property and Lettings Ltd | Real estate | 2022 |
| Harlequin Flowers Limited | Wholesale & retail | 2011 |
| Harlux Ltd | Information & communication | 2018 |
| Harmony Hub Chorley CIC | Education | 2025 |
| Harmony Logistics Limited | Transport & logistics | 2018 |
| Harness Wealth Management Ltd | Professional & scientific | 2013 |
| Harnest Care Group I Ltd | Health & social care | 2025 |
| Harp Joinery and Timber Products Limited | Manufacturing | 2011 |
| Harrick Limited | Real estate | 2014 |
| Harris Carpentry & Building Limited | Construction | 2016 |
| Harris Truck & Van (NE) Limited | Wholesale & retail | 2019 |
| Harrison Steen Limited | Wholesale & retail | 1995 |
| Harrison Transform Hub Ltd | Arts & recreation | 2023 |
| Harrison’S of Howden Ltd | Transport & logistics | 2024 |
| Harrymukkys Limited | Health & social care | 2014 |
| Harrys Grocers Ltd | Wholesale & retail | 2018 |
| Hart Family Inns Ltd | Hospitality | 2019 |
| Hart Property Holdings Ltd | Financial services | 2019 |
| Hartley Homes Properties Limited | Real estate | 2021 |
| Hartwood Landscapes Ltd | Administrative & support | 2024 |
| Harwood International Limited | Extraterritorial | 1993 |
| Harwood Savin Limited | Professional & scientific | 2011 |
| Haslo Consulting Limited | Information & communication | 2024 |
| Hassan Hatab Ltd | Health & social care | 2013 |
| Hassan Munir Boss Ltd | Wholesale & retail | 2025 |
| HAT Medical Services Ltd | Health & social care | 2010 |
| Hatch Architecture Limited | Professional & scientific | 2015 |
| Hatsy Productions Limited | Arts & recreation | 2019 |
| Haugh Building & Construction Ltd | Construction | 2018 |
| Hausofcoffee Limited | Hospitality | 2020 |
| Having FUN Limited | Other services | 2024 |
| Haweswater Consultancy Limited | Real estate | 2022 |
| Hawkshead PUB Company Limited | Hospitality | 2004 |
| Hawley & Wood Limited | Extraterritorial | 2003 |