| H & Sons Traders Ltd | Wholesale & retail | 2026 |
| H & U Properties Ltd | Real estate | 2025 |
| H & V Control Systems Limited | Manufacturing | 2011 |
| H a & M Properties Ltd | Real estate | 2011 |
| H a Optical Services Limited | Health & social care | 2022 |
| H Ahmed Properties Ltd | Real estate | 2025 |
| H and M Pandit Limited | Health & social care | 2012 |
| H and O Innovations Limited | Health & social care | 2017 |
| H and P Delivery Service Limited | Wholesale & retail | 2025 |
| H and R Leeds Limited | Real estate | 2010 |
| H Anwar Prop Ltd | Real estate | 2024 |
| H Arif Investments Limited | Real estate | 2026 |
| H B Aluminium Fabrications Holdings Limited | Manufacturing | 2002 |
| H B Mortgages Limited | Financial services | 2025 |
| H C Carter Ltd | Other services | 2019 |
| H Creative Studios Limited | Professional & scientific | 2019 |
| H Dyson Ltd | Real estate | 2023 |
| H E Barnett Ltd | Professional & scientific | 2026 |
| H L Broll Limited | Information & communication | 2013 |
| H Locums Ltd | Health & social care | 2021 |
| H M Commercial Limited | Real estate | 2015 |
| H M Educational Psychology Limited | Health & social care | 2023 |
| H Mukhtar Consultancy Ltd | Administrative & support | 2014 |
| H Ramskill Properties Limited | Real estate | 2026 |
| H S Mudhar Properties Ltd | Real estate | 2021 |
| H S Peplow & SON Limited | Construction | 2003 |
| H Shah Properties Ltd | Real estate | 2024 |
| H Star Barbers Ltd | Other services | 2025 |
| H T Autos (Leeds) Limited | Wholesale & retail | 2007 |
| H T Expert Consultancy Limited | Professional & scientific | 2021 |
| H&A Energy Services Limited | Construction | 2017 |
| H&A Medicare Limited | Health & social care | 2024 |
| H&C Decorators Ltd | Construction | 2023 |
| H&C GAS Work Ltd | Manufacturing | 2019 |
| H&D Cleaning Services Ltd | Administrative & support | 2020 |
| H&E MED Limited | Health & social care | 2023 |
| H&F Investments (Yorkshire) Limited | Construction | 2003 |
| H&G Electrical Services Ltd | Construction | 2021 |
| H&G PVT Ltd | Health & social care | 2020 |
| H&H Consultants ENG Ltd | Professional & scientific | 2025 |
| H&H Examinations Ltd | Professional & scientific | 2022 |
| H&H Financial Ltd | Financial services | 2026 |
| H&H Foods Private Limited | Wholesale & retail | 2025 |
| H&H Luxury Properties Ltd | Households | 2025 |
| H&H Property Holding Company (Yorkshire) Ltd | Real estate | 2023 |
| H&J Thompson Ltd | Hospitality | 2025 |
| H&L Accommodation Ltd | Hospitality | 2025 |
| H&M Ice Ltd | Hospitality | 2019 |
| H&Oelectrical Limited | Construction | 2022 |
| H&Q Albion Limited | Construction | 2009 |
| H&Q Halifax Limited | Construction | 2009 |
| H&Q Shipley Limited | Real estate | 2009 |
| H&R Service Providers Ltd | Transport & logistics | 2019 |
| H&Z Prime Ventures Ltd | Information & communication | 2025 |
| H-A-A Foods Ltd | Hospitality | 2025 |
| H-Cube Engineering Ltd | Professional & scientific | 2023 |
| H-Ride Auto Limited | Wholesale & retail | 2023 |
| H. B. Projects Limited | Construction | 1998 |
| H. H. Burke & Company Limited | Professional & scientific | 2002 |
| H. Mitton Limited | Professional & scientific | 2000 |
| H. W. Designs Limited | | 1982 |
| H.A. & C. Rowley Limited | Information & communication | 1964 |
| H.Ali Ltd | Administrative & support | 2017 |
| H.B. Property Investor Ltd | Real estate | 2020 |
| H.D. Hair & Beauty Ltd. | Other services | 2015 |
| H.E.C Marketing Ltd | Administrative & support | 2024 |
| H.I. Properties (Yorkshire) Limited | Real estate | 2022 |
| H.I. Quality Steel Castings Limited | Manufacturing | 1979 |
| H.Johnson & Sons (Farsley) Limited | Construction | 1932 |
| H.L Solo Plumbing and Heating Ltd | Construction | 2020 |
| H.P. Heating & Plumbing Limited | Other services | 2011 |
| H.S Tyres Ltd | Wholesale & retail | 2024 |
| H.S.M Civil Engineering Ltd | Construction | 2024 |
| H.T Healthcare Limited | Health & social care | 2021 |
| H.T. Electrical Systems Ltd. | Manufacturing | 2007 |
| H.T. Scaffolding Systems Limited | Construction | 1991 |
| H136 Ltd | Real estate | 2024 |
| H2 Communications Limited | Professional & scientific | 1993 |
| H2 Consult Limited | Professional & scientific | 2019 |
| H20 Solutions Europe LLP | | 2008 |
| H2H Contractors Ltd | Transport & logistics | 2019 |
| H2O Engineering Limited | Administrative & support | 2013 |
| H2O Hire Services Ltd | Other services | 2022 |
| H2R Investments Ltd | Financial services | 2021 |
| H3 Design & Build Ltd | Construction | 2009 |
| H3 Traders Ltd | Wholesale & retail | 2020 |
| H4 Vision Integrated Ltd | Health & social care | 2023 |
| H4NSON Limited | Wholesale & retail | 2023 |
| H5 Direct Ltd | Real estate | 2018 |
| H5 Group Limited | Financial services | 2018 |
| H7H Properties Ltd | Real estate | 2025 |
| HA Audiology Ltd | Other services | 2024 |
| HA Business Consultant Ltd | Professional & scientific | 2025 |
| HA Cleans Ltd | Administrative & support | 2025 |
| HA HA Estates Ltd | Real estate | 2021 |
| HA HA Holdings Ltd | Real estate | 2022 |
| HA HA Shop Ltd. | Wholesale & retail | 2025 |
| HA Premium Ltd | Wholesale & retail | 2024 |
| Ha&As Limited | Wholesale & retail | 2025 |
| Haal Media Holdings Limited | Information & communication | 2022 |