| Haidri Group Ltd | Wholesale & retail | 2025 |
| Haighline Ltd | Wholesale & retail | 2025 |
| Haimer UK Ltd | Wholesale & retail | 2015 |
| Haimm & Co Ltd | Wholesale & retail | 2026 |
| Haith Heating Limited | Construction | 2002 |
| Haji&Sons Cash&Carry Ltd | Wholesale & retail | 2025 |
| Halal Investment Limited | Real estate | 2017 |
| Haliburton Holdco Limited | Professional & scientific | 2020 |
| Halilit Limited | Extraterritorial | 2011 |
| Hall's Bakery Ltd | Wholesale & retail | 2006 |
| Hallcroft Business Consultants Limited | Professional & scientific | 2016 |
| Hallmark Homes Burnley Limited | Real estate | 2017 |
| Hallmark Kitchens Limited | Construction | 1983 |
| Halpin Style Limited | Wholesale & retail | 2006 |
| Halstead Centre Limited | Education | 2011 |
| Halstead Fitness Ltd | Arts & recreation | 2022 |
| Hama Daba Ltd | Wholesale & retail | 2025 |
| Hamilton Law Limited | Professional & scientific | 2020 |
| Hammerton Functions Limited | Wholesale & retail | 2019 |
| Hammerton Hospitality Ltd | Hospitality | 2020 |
| Hampshire Packaging Services Limited | Manufacturing | 1986 |
| Hanani Investments Limited | Real estate | 2025 |
| Handbag Angels Limited | Wholesale & retail | 2016 |
| Handleys Foods 2024 Ltd | Hospitality | 2024 |
| Handymain Limited | Information & communication | 1992 |
| Hani Stores Limited | Wholesale & retail | 2022 |
| Hanson Civil Engineering & Drainage Ltd | Construction | 2026 |
| Happi Daze Ltd | Health & social care | 2024 |
| Happy Creative Limited | Professional & scientific | 2005 |
| Happy Friends Ltd | Wholesale & retail | 2021 |
| Happy Minds Kids Academy Limited | Education | 2017 |
| Happyeshopper Ltd | Wholesale & retail | 2011 |
| Hapton Caravan Storage Ltd | Other services | 2010 |
| Hapton Estates Limited | Real estate | 1928 |
| Hapton Homes Limited | Construction | 2013 |
| Hapton MOT Centre Ltd | Wholesale & retail | 2016 |
| Hapton Valley Boats Ltd | Administrative & support | 2009 |
| HAQ Group Ltd | Wholesale & retail | 2022 |
| Haqqani Automotive Limited | Wholesale & retail | 2023 |
| Haran J Limited | Wholesale & retail | 2023 |
| Harbour and Hall Ltd | Information & communication | 2025 |
| Hard Rock Invest Ltd | Real estate | 2020 |
| Hard Rock Property Management Ltd | Real estate | 2018 |
| Hardacre Solutions Limited | Professional & scientific | 2024 |
| Hardline Airsoft Limited | Arts & recreation | 2021 |
| Hardy Access Services Limited | Construction | 2011 |
| Hardy Services (UK) Group Limited | Construction | 2014 |
| Hare Leisure Ltd | Hospitality | 2021 |
| Hare Moon Films Limited | Information & communication | 2020 |
| Harford-Brown Accountants Limited | Professional & scientific | 2024 |
| Harford-Brown Group Limited | Financial services | 2024 |
| Harford-Brown Limited | Wholesale & retail | 2024 |
| Hargreaves House Ltd | Financial services | 2023 |
| Hari MK Ltd | Wholesale & retail | 2022 |
| Haris J Tyler Ltd | Other services | 2017 |
| Harle & Co Ltd | Manufacturing | 2026 |
| Harmatt Ltd | Construction | 2009 |
| Harold Supermarket Ltd | Wholesale & retail | 2026 |
| Harris Heating (NW) Ltd | Construction | 2003 |
| Harris PUB Co Limited | Hospitality | 2017 |
| Harrison C Limited | Wholesale & retail | 2018 |
| Harrison Grey Developments Ltd | Real estate | 2024 |
| Harrison Grey Limited | Real estate | 2019 |
| Harrison Grey Management Ltd | Real estate | 2020 |
| Harrison Howarth Holdings Ltd | Financial services | 2022 |
| Harrison Street Ltd | Households | 2021 |
| Harry's Autos Ltd | Wholesale & retail | 2018 |
| Harry’S Auto Replacement Ltd | Administrative & support | 2018 |
| Hartley Motorcycles Limited | Wholesale & retail | 2026 |
| Hartley PUB Company Ltd | Hospitality | 2017 |
| Hartley's Deliveries Ltd | Transport & logistics | 2020 |
| Hartley's Drivers Ltd | Transport & logistics | 2019 |
| Hartrie Limited | Administrative & support | 2017 |
| Harts Electrical Services Ltd | Construction | 2019 |
| Hartwood Distributions Ltd | Wholesale & retail | 2026 |
| Harvey House Renovation Ltd | Real estate | 2025 |
| Harvey Micks Limited | Extraterritorial | 2006 |
| Harward Homes Ltd | Real estate | 2023 |
| Harwood Homes Ltd | Real estate | 2024 |
| Harwood&Son Joinery and Plumbing Ltd | Other services | 2016 |
| Hasan Sweets and Baker Limited | Wholesale & retail | 2015 |
| Hass Motor Company Ltd | Wholesale & retail | 2023 |
| Hassan Zainab Ltd | Manufacturing | 2024 |
| Hasslecastle Group Limited | Manufacturing | 2008 |
| Hatc Solutions Ltd | Professional & scientific | 2024 |
| Haus of Laser Lancashire Ltd | Other services | 2026 |
| Haven Retreat Care Ltd | Health & social care | 2023 |
| Hawali Indian Takeaway Ltd | Hospitality | 2020 |
| Hawkmoto Ltd | Wholesale & retail | 2020 |
| Hawks Corporation Ltd | Real estate | 2020 |
| Haworths Financial Services Limited | Financial services | 2004 |
| Haworths Limited | Extraterritorial | 2004 |
| Hayat & Co Investments Limited | Financial services | 2018 |
| Hayward's Dog Grooming Ltd | Other services | 2022 |
| HB Events & Designs Limited | Administrative & support | 2025 |
| HBC Eco Ltd | Financial services | 2024 |
| HBC Supplies Limited | Construction | 2015 |
| HBK Prestige Group Limited | Administrative & support | 2023 |
| HBS Healthcare Limited | Wholesale & retail | 2012 |
| HDB Styling Ltd | Wholesale & retail | 2025 |