| Hexa Falir Ltd | Wholesale & retail | 2025 |
| Hexagon Inc Ltd | Real estate | 2024 |
| HEY Amigos BFD Ltd | Hospitality | 2025 |
| HEY Contract Limited | Wholesale & retail | 2020 |
| HEY Gourmet Ltd | Hospitality | 2019 |
| Hezedge Consulting Ltd | Wholesale & retail | 2023 |
| HFM Jacksons Limited | Manufacturing | 2025 |
| HFP Properties Ltd | Real estate | 2024 |
| HFU Enterprise Ltd | Wholesale & retail | 2023 |
| HFY Holdings Ltd | Financial services | 2025 |
| HFZ Holdings Ltd | Real estate | 2021 |
| HGA Property Services Limited | Manufacturing | 2015 |
| HGC Electrical (Yorkshire) Ltd | Construction | 2021 |
| HGS Local Ltd | Construction | 2023 |
| HH Coffee Limited | Wholesale & retail | 2025 |
| HH Couture Limited | Wholesale & retail | 2025 |
| HH Digital Marketing Ltd | Professional & scientific | 2024 |
| HH Estates Ltd | Real estate | 2021 |
| HH Expert Consultancy Ltd | Other services | 2019 |
| HH Luxe Studio Ltd | Other services | 2025 |
| HH Optical Ltd | Health & social care | 2021 |
| HH Recovery & Car Sales Ltd | Wholesale & retail | 2025 |
| HH Residential Ltd | Real estate | 2022 |
| HH White Lable Limited | Wholesale & retail | 2023 |
| HH50 Ltd | Real estate | 2023 |
| HHB Consulting Services Ltd | Information & communication | 2022 |
| Hhhousingyorkshire Ltd | Real estate | 2025 |
| HHV Holdings Ltd | Real estate | 2023 |
| HI Mark BIO Technology Limited | Wholesale & retail | 2017 |
| HI Mark International Limited | Manufacturing | 1994 |
| HI Property Developments Limited | Real estate | 2022 |
| HI Spec Optics Ltd | Health & social care | 2023 |
| HI Spec Windows Doors and Conservatories Limited | Construction | 2006 |
| HI Star Vision. Ltd | Health & social care | 2011 |
| HI Tech Builders Ltd | Construction | 2017 |
| Hi-Brit Limited | Administrative & support | 2019 |
| Hi-End Interiors Limited | Construction | 2019 |
| Hi-Tech Shopfront & Shutters Ltd | Manufacturing | 2024 |
| HIA Building Contractors Ltd | Construction | 2024 |
| HIA Electrical Ltd | Construction | 2019 |
| HIA Global Limited | Wholesale & retail | 2025 |
| Hiba Hampers (UK) Ltd | Wholesale & retail | 2012 |
| Hibayat Emporium Ltd | Wholesale & retail | 2024 |
| Hibbert Smith Consulting Ltd | Professional & scientific | 2022 |
| Hibeekay Limited | Health & social care | 2015 |
| Hibernate Bedding Ltd | Other services | 2017 |
| Hibza Aslam Ltd | Wholesale & retail | 2020 |
| Hickford Marketing Ltd | Wholesale & retail | 2020 |
| Hicma Technologies Ltd | Information & communication | 2025 |
| Hidari Trading Ltd | Hospitality | 2023 |
| Hidden Handi Ltd | Hospitality | 2026 |
| Hidden Truth Publishing Ltd | Information & communication | 2025 |
| Hifazah Locum Limited | Health & social care | 2025 |
| Hifiz Diagnostics Ltd | Health & social care | 2021 |
| High Bargains Limited | Wholesale & retail | 2020 |
| High Design Roofing Limited | Construction | 2021 |
| High Doors Real Estates Ltd | Real estate | 2024 |
| High Education Ltd | Education | 2025 |
| High END Halal Meat Ltd | Wholesale & retail | 2025 |
| High END Mart Limited | Wholesale & retail | 2025 |
| High END Performance Clothing & Footwear Limited | Wholesale & retail | 2021 |
| High House Haven Ltd | Health & social care | 2026 |
| High Quality Products Ltd | Wholesale & retail | 2023 |
| High Spec Decor Ltd | Construction | 2021 |
| High Star Capital Ltd | Information & communication | 2022 |
| High Street Online Limited | Wholesale & retail | 2017 |
| High Strength Limited | Wholesale & retail | 2022 |
| High Techway Ltd | Wholesale & retail | 2025 |
| High Town OFF Licence Ltd | Wholesale & retail | 2010 |
| High Valley Ltd | Hospitality | 2017 |
| High Voltage Commissioner Ltd | Professional & scientific | 2025 |
| High-End Travels Ltd | Transport & logistics | 2025 |
| Highcrest (White Swan) Ltd | Hospitality | 2018 |
| Higher Center for Quality and Management (Hcqm) Ltd | Professional & scientific | 2024 |
| Highfield Barns Management Ltd | Households | 2023 |
| Highfield Flowers Limited | Wholesale & retail | 2024 |
| Highfield Plant Sales Ltd | Wholesale & retail | 2023 |
| Highfield Sales Ltd | Wholesale & retail | 2026 |
| Highgate Solicitors Ltd | Professional & scientific | 2010 |
| Highgrove Investments Ltd | Real estate | 2018 |
| Highgrove Property Developments Limited | Real estate | 2004 |
| Highland Redrock Ltd | Wholesale & retail | 2025 |
| Highstreet Accountax Ltd | Professional & scientific | 2025 |
| Highstreet Financial Partners Ltd | Professional & scientific | 2026 |
| Hijaba Ltd | Wholesale & retail | 2024 |
| Hijama Ruqya Remedies Ltd | Manufacturing | 2015 |
| Hijama Training Limited | Health & social care | 2025 |
| Hijaz Bargains Store Ltd | Wholesale & retail | 2026 |
| Hijrah Hub Travels Ltd | Administrative & support | 2026 |
| HIK Properties Limited | Real estate | 2020 |
| HIK Vison Ltd | Construction | 2025 |
| Hiking Haifa Ltd | Administrative & support | 2023 |
| Hilbro Ltd | Wholesale & retail | 2014 |
| Hillas Truck & Trailer Services Ltd | Wholesale & retail | 2017 |
| Hillcourt Associates Limited | Professional & scientific | 2025 |
| Hillcourt Events Limited | Arts & recreation | 2011 |
| Hillcrest Garages (Sowerby Bridge) Limited | Real estate | 1984 |
| Hillpark Pubs Limited | Hospitality | 2025 |
| Hills Fairground Amusements Ltd | Arts & recreation | 2026 |
| Hillside Garage 2 Ltd | Administrative & support | 2017 |