| HOOD404 Ltd | Wholesale & retail | 2025 |
| Hoods Galore Ltd | Wholesale & retail | 2025 |
| Hoodydotcom Limited | Wholesale & retail | 2022 |
| Hoodywood Ltd | Wholesale & retail | 2025 |
| Hook Heath Consulting Limited | Professional & scientific | 2015 |
| Hook Rise Ltd | Real estate | 2019 |
| Hooked Designs and Media Limited | Information & communication | 2023 |
| Hooked Films Ltd | Information & communication | 2025 |
| Hooney Tunes Ltd | Wholesale & retail | 2026 |
| Hoop DA Hoop Limited | Arts & recreation | 2018 |
| Hooper's Writing Services Limited | Information & communication | 2015 |
| Hooper-Sargent Limited | Professional & scientific | 2024 |
| Hooperz Ltd | Hospitality | 2025 |
| Hoopla Marketing Ltd | Professional & scientific | 2015 |
| Hoopoe Art Limited | Wholesale & retail | 2014 |
| Hoops Property Management Ltd | Households | 2022 |
| Hoor Goodstuffs Ltd | Wholesale & retail | 2025 |
| Hooray Studios Ltd | Other services | 2019 |
| Hoorn Property Services Limited | Real estate | 2016 |
| Hoot London Ltd | Professional & scientific | 2023 |
| Hootless Intl Limited | Wholesale & retail | 2010 |
| Hooton Golf Club Limited | Arts & recreation | 2020 |
| Hootzpa Ltd | Wholesale & retail | 2024 |
| Hoowi Ltd | Wholesale & retail | 2026 |
| HOP in Shop in Ltd | Wholesale & retail | 2021 |
| HOP Scotch Monton Limited | Hospitality | 2020 |
| HOP Vine Hospitality Ltd | Hospitality | 2024 |
| HOP Yard Brewing Company Ltd | Hospitality | 2014 |
| Hope 24/7 Care Limited | Health & social care | 2014 |
| Hope Aria Limited | Arts & recreation | 2017 |
| Hope Brickwork Ltd | Construction | 2024 |
| Hope Community Healthcare Limited | Health & social care | 2008 |
| Hope Consulting Services UK Limited | Administrative & support | 2024 |
| Hope for Health Care Ltd | Health & social care | 2016 |
| Hope Foundation UK Limited | Health & social care | 2009 |
| Hope GLS Limited | Health & social care | 2011 |
| Hope Harbour Homes Ltd | Health & social care | 2024 |
| Hope Learning Academy Ltd | Education | 2025 |
| Hope Mill Partnership LLP | | 2013 |
| Hope Park Residents Limited | Households | 1995 |
| Hope Projects Manchester Community Interest Company | Education | 2009 |
| Hope Psychology and Healing Ltd | Health & social care | 2022 |
| Hope Quality Care Services Ltd | Health & social care | 2022 |
| Hope ST Properties Ltd | Real estate | 2022 |
| Hope Trust Company Oldham | Hospitality | 2008 |
| Hopecar Limited | Extraterritorial | 1910 |
| Hopegray Healthcare Limited | Health & social care | 2021 |
| Hopeless Youth Clothing Ltd | Wholesale & retail | 2013 |
| Hopesther Limited | Transport & logistics | 2025 |
| Hopestream Limited | Wholesale & retail | 2016 |
| Hopib Services Limited | Real estate | 2022 |
| Hopkins Ltd | Professional & scientific | 2023 |
| Hopkinson Building Consultancy Ltd | Construction | 2019 |
| Hoppy MAN 1960 Limited | Financial services | 2015 |
| Hopson Packaging Limited | Administrative & support | 1972 |
| Hopwood House Medical Practice Ltd | Health & social care | 2026 |
| Hopwood Manor (Heywood) Management Company Limited | Households | 2006 |
| Hoque Pharma Ltd | Wholesale & retail | 2023 |
| Horans Construction Ltd | Construction | 2022 |
| Horbury Building Systems Limited | Construction | 1992 |
| Hordern Ryan LLP | | 2015 |
| Horgans PTP Limited | Administrative & support | 2022 |
| Horizantal Properties Limited | Real estate | 2024 |
| Horizech Ltd | Information & communication | 2023 |
| Horizon 2918 Limited | Health & social care | 2012 |
| Horizon 7 Limited | Information & communication | 2002 |
| Horizon Academy of Science and Technology Ltd | Public administration | 2025 |
| Horizon Bridge Consulting Services Ltd | Extraterritorial | 2026 |
| Horizon Building Solutions Limited | Education | 2024 |
| Horizon Car Sales Ltd | Wholesale & retail | 2023 |
| Horizon Care and Education Group Limited | Health & social care | 2007 |
| Horizon Care and Education Services Limited | Health & social care | 2011 |
| Horizon Care Limited | Education | 2000 |
| Horizon Codeworks Limited | Information & communication | 2025 |
| Horizon Company Management Ltd | Wholesale & retail | 2025 |
| Horizon Construction North West Limited | Construction | 2024 |
| Horizon Core Limited | Construction | 2026 |
| Horizon Digital Trading Ltd | Information & communication | 2026 |
| Horizon E-Commerce Ltd | Wholesale & retail | 2023 |
| Horizon EB Limited | Wholesale & retail | 2025 |
| Horizon Education (South London) Limited | Education | 2009 |
| Horizon Energy Capital Ltd | Financial services | 2026 |
| Horizon Financial Group Ltd | Wholesale & retail | 2025 |
| Horizon for General Trading Limited | Extraterritorial | 2026 |
| Horizon for International Services Limited | Extraterritorial | 2026 |
| Horizon for International Trading & Services Limited | Extraterritorial | 2026 |
| Horizon for International Trading Limited | Extraterritorial | 2026 |
| Horizon for Investment & Trading Ltd | Extraterritorial | 2026 |
| Horizon for Investment Limited | Extraterritorial | 2026 |
| Horizon for Trading & Services Limited | Extraterritorial | 2026 |
| Horizon for Trading Limited | Extraterritorial | 2026 |
| Horizon Geoconsulting (UK) Ltd | Professional & scientific | 2022 |
| Horizon Health Plus Limited | Health & social care | 2021 |
| Horizon Heating & Technical Services Ltd | Construction | 2019 |
| Horizon Hive Limited | Wholesale & retail | 2023 |
| Horizon Key Properties Ltd | Real estate | 2025 |
| Horizon Land (UK Developments) Ltd | Professional & scientific | 2017 |
| Horizon LWP Limited | Wholesale & retail | 2026 |
| Horizon Management Serves Ltd | Administrative & support | 2025 |
| Horizon Medical Academy Ltd | Education | 2026 |