| Haighs for Drains Limited | Water & waste | 2002 |
| Hail Your Hair 2 Limited | Wholesale & retail | 2024 |
| Haiqak Ltd | Professional & scientific | 2021 |
| Hair & Hounds Dog Grooming Limited | Wholesale & retail | 2010 |
| Hair Academy by TGI Limited | Education | 2014 |
| Hair and Beauty for YOU Ltd | Other services | 2024 |
| Hair and Repair Ltd | Other services | 2023 |
| Hair by Aysha X Ltd | Other services | 2023 |
| Hair Extensions Barnsley Ltd | Other services | 2022 |
| Hair POT and Beauty Enterprises Ltd | Other services | 2026 |
| Hair Transplant Ltd | Other services | 2026 |
| Hairology BFD Limited | Other services | 2025 |
| Hairvana Therapy Ltd | Other services | 2025 |
| Hajaz Engineering Construction and Consultancy Ltd | Construction | 2022 |
| Haji and Sons Meat Traders Ltd | Wholesale & retail | 2016 |
| Haji Aslam & Sons Ltd. | Wholesale & retail | 2026 |
| Haji Sharif & Sons UK Ltd | Wholesale & retail | 2025 |
| Hajira Travels Limited | Hospitality | 2023 |
| Hajis Roti House and Desserts Ltd | Hospitality | 2026 |
| Hajvari Sellers Limited | Wholesale & retail | 2025 |
| Hajvery Ltd | Hospitality | 2025 |
| HAK PAK Halal Limited | Manufacturing | 2021 |
| HAK Pharm Ltd | Health & social care | 2015 |
| HAK Property Group Ltd | Real estate | 2019 |
| HAK Property Investments 2 Limited | Real estate | 2019 |
| HAK Property Investments 3 Limited | Real estate | 2020 |
| HAK Property Investments Ltd | Real estate | 2013 |
| HAK Property Yorkshire Ltd | Real estate | 2025 |
| HAK Rapid Plumbing and Heating Services Ltd | Professional & scientific | 2023 |
| Hake (Rawtenstall) Limited | Hospitality | 2020 |
| Hakim Investments Ltd | Real estate | 2024 |
| Hakim Sahab Ltd | Health & social care | 2023 |
| Hakimi Services Limited | Health & social care | 2022 |
| Hakka Fish & Chips Limited | Hospitality | 2021 |
| Hakm Investment Ltd | Real estate | 2018 |
| Halal Butchers Wolverhampton Ltd | Wholesale & retail | 2020 |
| Halal Master Butchers Ltd | Wholesale & retail | 2022 |
| Halal Meat & Poultry BFD Ltd | Wholesale & retail | 2024 |
| Halal Motors Ltd | Wholesale & retail | 2021 |
| Halal Western Butchers Ltd | Manufacturing | 2025 |
| Halalco Ltd | Wholesale & retail | 2026 |
| Halar Mini Market Ltd | Wholesale & retail | 2025 |
| Halcyon Cove Limited | Professional & scientific | 2020 |
| Halcyon Fortune Ltd | Real estate | 2021 |
| Hald Ltd | Construction | 2025 |
| Hale Events Incorporated Ltd | Administrative & support | 2021 |
| Haleema Consultants Limited | Administrative & support | 2019 |
| Hales Cope Limited | Construction | 2022 |
| Haley House Clinic Ltd | Extraterritorial | 2024 |
| Halfway Property Services Limited | Households | 2010 |
| Halifax Aparthotel Ltd | Hospitality | 2025 |
| Halifax DAB Ltd | Information & communication | 2024 |
| Halifax Driving School Ltd | Education | 2025 |
| Halifax Foods Yorkshire Ltd | Hospitality | 2025 |
| Halifax Halal Poultry Wholesale Ltd | Wholesale & retail | 2018 |
| Halifax Handyman Limited | Construction | 2020 |
| Halifax Homes Limited | Real estate | 2017 |
| Halifax Leisure Limited | Hospitality | 1999 |
| Halifax Road Hand Car Wash Ltd | Administrative & support | 2016 |
| Halifax Road Investments Limited | Real estate | 2023 |
| Halifax Skip Hire (West Yorkshire) Ltd | Administrative & support | 2022 |
| Halim Investments (UK) Ltd | Manufacturing | 2020 |
| Halima Khan Ltd | Real estate | 2023 |
| Halizona Ltd | Information & communication | 2018 |
| Hall Royd Management Company Ltd | Households | 2018 |
| Hall Royd Social, Arts & Culture CIC | Hospitality | 2026 |
| Hallafield Care & Support Limited | Health & social care | 2025 |
| Hallage Limited | Transport & logistics | 2015 |
| Hallas Cote Holdings Limited | Financial services | 2026 |
| Hallas Cote Surgical Ltd | Health & social care | 2014 |
| Hallmark Cards (Holdings) Limited | Professional & scientific | 1987 |
| Hallmark Cards PLC | Information & communication | 1997 |
| Hallmark Cards Property Company Limited | Real estate | 1980 |
| Hallmark Cards UK | Information & communication | 1975 |
| Hallmark Legal Ltd | Professional & scientific | 2018 |
| Hallmark Pension Trustees Limited | Professional & scientific | 1997 |
| Halls Bakery & Confectionery Ltd | Wholesale & retail | 2023 |
| Halls Electrical Contractors (Yorkshire) Ltd | Construction | 2016 |
| Halls Haulage West Yorkshire Limited | Transport & logistics | 2020 |
| Hallsdale Limited | Education | 2017 |
| Hallways Household Textiles Limited | Other services | 1990 |
| Halmera Enteprises Ltd | Transport & logistics | 2022 |
| Halo Health & Safety Solutions Ltd | Extraterritorial | 2025 |
| Halstead Lettings Limited | Hospitality | 2025 |
| Hama Dairy Limited | Wholesale & retail | 2026 |
| Hamah Limited | Health & social care | 2022 |
| Hamann Care Ltd | Health & social care | 2020 |
| Hamara Ltd | Transport & logistics | 2025 |
| Hamari Shop Limited | Wholesale & retail | 2024 |
| Hamaya Investments Limited | Real estate | 2023 |
| Hambledon Studios Limited | Information & communication | 1958 |
| Hamdy Homes Ltd | Real estate | 2023 |
| Hamdy Ltd | Health & social care | 2021 |
| Hameeda & Sons Ltd | Real estate | 2024 |
| Hameem Logistics Limited | Transport & logistics | 2026 |
| Hamid Properties Ltd | Other services | 2023 |
| Hamilton Amusement Equipment Engineering Limited | | 1981 |
| Hamilton Black Accountants Limited | Professional & scientific | 2024 |
| Hamilton Black Professional Services Limited | Professional & scientific | 2020 |
| Hamilton Hartley Ltd | Construction | 2017 |