| HOW Roofing Limited | Construction | 2019 |
| HOW WE DO Music Limited | Information & communication | 2015 |
| HOW YOU Shop UK Limited | Wholesale & retail | 2018 |
| Howard Lock Intellectual Property Limited | Administrative & support | 2009 |
| Howarth Management Consultants Limited | Professional & scientific | 2009 |
| Howarth Mcswain Limited | Arts & recreation | 2002 |
| Howarth-Beal Psychological Services Ltd | Health & social care | 2017 |
| Howco Quality Alloys Limited | Manufacturing | 1960 |
| Howe Group Limited | Real estate | 2020 |
| Howe Wealth Management Ltd | Financial services | 2022 |
| Howells Solicitors Limited | Professional & scientific | 2023 |
| Howmet Europe Financial Services LP | | 2014 |
| Howst Ltd | Hospitality | 2020 |
| Howzat Electrical Services Ltd | Construction | 2017 |
| Hoyland Top Barbers Limited | Other services | 2025 |
| Hoylandswaine Village Hall Limited | Other services | 2007 |
| Hoyle Medical Ltd | Health & social care | 2019 |
| Hozan Limited | Wholesale & retail | 2021 |
| Hozho Limited | Information & communication | 2020 |
| HP Construction Holdings Ltd | Financial services | 2025 |
| HP Endeavours Ltd | Hospitality | 2020 |
| HP Property (Yorkshire) Ltd | Real estate | 2025 |
| HP Rail Ltd | Professional & scientific | 2023 |
| Hpda Architecture Limited | Construction | 2011 |
| Hpgc Ltd | Professional & scientific | 2022 |
| HPJ Developments Limited | Real estate | 2014 |
| HPM Technology Limited | Information & communication | 2018 |
| HQ Competitions Ltd | Arts & recreation | 2025 |
| HQ Construction and Property Maintenance Ltd | Construction | 2023 |
| HQ Developments Limited | Real estate | 2020 |
| HQ Optics Limited | Wholesale & retail | 2023 |
| HQ Property Estates Limited | Real estate | 2024 |
| HQC Ltd | Hospitality | 2020 |
| HR Estate Developments Ltd | Construction | 2025 |
| HR Professional Consultancy Services Ltd | Professional & scientific | 2017 |
| Hrasupplies Ltd. | Manufacturing | 2021 |
| HRC Global Services Ltd | Information & communication | 2026 |
| Hresourcefulness Limited | Professional & scientific | 2009 |
| HRF Services Ltd | Financial services | 2026 |
| Hrhough Limited | Administrative & support | 2026 |
| Hrit Consulting Limited | Information & communication | 2016 |
| HRJ Consulting Ltd | Administrative & support | 2024 |
| HRS Builders Limited | Administrative & support | 2023 |
| HRS Building Construction Services Limited | Construction | 2017 |
| HS (587) Limited | Professional & scientific | 2008 |
| HS 001 Limited | Administrative & support | 2014 |
| HS 008 Limited | Administrative & support | 2015 |
| HS 009 Limited | Administrative & support | 2016 |
| HS 5000 Limited | Administrative & support | 2019 |
| HS 5001 Limited | Administrative & support | 2019 |
| HS Abbas Ltd | Wholesale & retail | 2024 |
| HS Commercial Solutions Limited | Financial services | 2015 |
| HS Coppen 1 Limited | Administrative & support | 2008 |
| HS Coppen 2 Limited | Administrative & support | 2008 |
| HS Fried Chicken Ltd | Hospitality | 2019 |
| HS Interim Services Ltd | Manufacturing | 2021 |
| HS Joinery Ltd | Manufacturing | 2026 |
| HS Talk Limited | Other services | 2015 |
| HSF Petroleum Services Limited | Mining & quarrying | 2011 |
| HSI Holdings Limited | Financial services | 2021 |
| HSN Automotive Ltd | Wholesale & retail | 2023 |
| HSN Dental Care Limited | Health & social care | 2013 |
| HSP Edition Ltd | Wholesale & retail | 2019 |
| HSP Medicos Limited | Health & social care | 2024 |
| Hsseq Infinity Limited | Professional & scientific | 2023 |
| Hsstays Ltd | Hospitality | 2023 |
| HST (West Yorkshire) Ltd | Education | 2022 |
| Hsxproperty Ltd | Real estate | 2025 |
| HT Dessert Limited | Wholesale & retail | 2025 |
| HT Property Solutions Ltd | Real estate | 2020 |
| HT Taxi Limited | Transport & logistics | 2018 |
| HT Taxi Services Ltd | Transport & logistics | 2019 |
| HTL Cole Sales Limited | Other services | 1992 |
| Html for Humans Ltd | Information & communication | 2024 |
| HTO Holdings Ltd | Real estate | 2026 |
| HTP Property Management Limited | Real estate | 2026 |
| HTS Electrical Ltd | Construction | 2024 |
| HTS Property Group Ltd | Real estate | 2024 |
| HTS Property Renovations and Services Limited | Construction | 2025 |
| Htss Limited | Other services | 2025 |
| HTT Global Ltd | Professional & scientific | 2024 |
| HU12AP Limited | Real estate | 2022 |
| Huaming Takeaway Limited | Hospitality | 2024 |
| Huayuwanhe Limited | Wholesale & retail | 2025 |
| Hub Care Ltd | Health & social care | 2025 |
| Hub Digital Media Limited | Information & communication | 2006 |
| Hub Site Services Limited | Administrative & support | 2016 |
| HUB4LEADERS Limited | Information & communication | 2013 |
| Hubvue Ltd | Information & communication | 2025 |
| Huckerby Financial Ltd | Financial services | 2017 |
| Huddle GAP CIC | Health & social care | 2024 |
| Hudson and Bond Ltd | Wholesale & retail | 2022 |
| Hudson K9 Dog Training Limited | Other services | 2025 |
| Hudson Music Publishing Limited | Information & communication | 2022 |
| Hudson Records Ltd | Information & communication | 2017 |
| Hudson Unearth CIC | Information & communication | 2021 |
| Hudson Willow Ltd | Professional & scientific | 2018 |
| Hudson's Kitchen Ltd | Hospitality | 2017 |
| Hudson-Consult Ltd | Professional & scientific | 2024 |
| Hugh and Ernie Ltd | Information & communication | 2025 |