| Horizon North West Ltd | Hospitality | 2023 |
| Horizon Optics Ltd | Health & social care | 2025 |
| Horizon Paragon Ltd | Real estate | 2022 |
| Horizon Partners Ltd | Real estate | 2013 |
| Horizon Properties Group Ltd | Hospitality | 2024 |
| Horizon Properties MCR Ltd | Real estate | 2026 |
| Horizon Property Group NW Ltd | Real estate | 2024 |
| Horizon Realty Estates Ltd | Real estate | 2025 |
| Horizon Realty Ventures Ltd | Professional & scientific | 2024 |
| Horizon Residential Homes Limited | Health & social care | 2015 |
| Horizon Retailer Ltd | Wholesale & retail | 2021 |
| Horizon Shelters Limited | Hospitality | 2025 |
| Horizon Solar & Storage Ltd | Construction | 2026 |
| Horizon Supported Accommodation Limited | Health & social care | 2003 |
| Horizon Systems Limited | Administrative & support | 2009 |
| Horizon Trade Network Limited | Hospitality | 2024 |
| Horizon Tree Surgery Limited | Agriculture & fishing | 2026 |
| Horizon United Ltd | Wholesale & retail | 2024 |
| Horizon Vehicle Replacement Limited | Administrative & support | 2026 |
| Horizon View Properties Ltd | Real estate | 2024 |
| Horizon-Architecture Group Limited | Financial services | 2019 |
| HORIZON23 Ltd | Hospitality | 2024 |
| Horizons IPM UK Ltd | Professional & scientific | 2020 |
| Horizons Leisure Limited | Arts & recreation | 1984 |
| Horizons Restaurant Limited | Hospitality | 2023 |
| Horizontal Vertical Ltd | Professional & scientific | 2022 |
| Horkins Properties Limited | Real estate | 2024 |
| Horn Associates Internationl Somaliland Ltd | Administrative & support | 2025 |
| Hornby Lodge Management Company Limited | Households | 2004 |
| Hornby Street (MCR) Limited | Wholesale & retail | 2012 |
| Hornchurch Medics Ltd | Information & communication | 2012 |
| Horne Properties Ltd | Real estate | 2020 |
| Horners Auto Repair Centre Limited | Wholesale & retail | 2008 |
| Horners Manchester Limited | Transport & logistics | 1959 |
| Hornet Limited | Wholesale & retail | 2017 |
| Horns Cheshire Limited | Transport & logistics | 1922 |
| Hornsearle Property Group Limited | Financial services | 2020 |
| Hornsearle Property Investments Limited | Real estate | 2014 |
| Horridge Property Ltd | Real estate | 2020 |
| Horror Entertainments Live Limited | Administrative & support | 2019 |
| Horse Masters Limited | Wholesale & retail | 2020 |
| Horsebeach Ltd | Arts & recreation | 2014 |
| Horsepower Estate Ltd | Real estate | 2024 |
| Horsepower Investments Ltd | Real estate | 2024 |
| Horsfield Group Limited | Financial services | 2023 |
| Horsfield Properties Limited | Real estate | 2023 |
| Horsham Estates Ltd | Real estate | 2021 |
| Horstmann Traiding Ltd | Wholesale & retail | 2025 |
| Horte Ltd | Hospitality | 2025 |
| Hortn Ltd | Construction | 2024 |
| Horus Accounts Limited | Professional & scientific | 2025 |
| Horus Consultancy Limited | Professional & scientific | 2022 |
| Horus Wear for Commercial Investment Ltd | Wholesale & retail | 2025 |
| Horwich (R.D.M.) Group Limited | Real estate | 1973 |
| Horwich Cohen Coghlan Ltd | Professional & scientific | 2012 |
| Horwich Medical Ltd | Health & social care | 2013 |
| Horx Ltd | Health & social care | 2025 |
| Hosam Adnan Aouainat for Investment Ltd | Wholesale & retail | 2021 |
| Hoskyn House Ltd | Construction | 2019 |
| Hospitai Limited | Information & communication | 2026 |
| Hospital Projects Ltd | Construction | 2015 |
| Hospitality at the Mitre Limited | Hospitality | 2025 |
| Hospitality Corner Ltd | Hospitality | 2026 |
| Hospitality Innovations Limited | Hospitality | 2014 |
| Hospitality North West Limited | Hospitality | 2024 |
| Hospitality Tech Jobs Global Limited | Administrative & support | 2026 |
| Hospitality-Connect Limited | Education | 2025 |
| Hossain Moorehead Ltd | Professional & scientific | 2012 |
| Host & Stay MCR Ltd | Hospitality | 2024 |
| Host Living Ltd | Real estate | 2021 |
| Host Manchester Ltd | Other services | 2024 |
| Host Service UK Ltd | Information & communication | 2006 |
| Hostease Services Ltd | Real estate | 2024 |
| Hosted Management Ltd | Wholesale & retail | 2022 |
| Hosterooo Ltd | Other services | 2020 |
| Hostgrid Homes Limited | Hospitality | 2025 |
| Hostilo Limited | Real estate | 2026 |
| Hosting Solutions (Emea) Ltd | Information & communication | 2024 |
| Hostonzebao Limited | Information & communication | 2026 |
| Hostweave Ltd | Information & communication | 2025 |
| Hot 'N' Tasty Catering Ltd | Hospitality | 2004 |
| Hot Dog Go MAD Ltd | Other services | 2021 |
| Hot Food Limited | Hospitality | 2025 |
| Hot Gossip Limited | Wholesale & retail | 2006 |
| Hot Lane Tyres Holdings Limited | Financial services | 2020 |
| Hot Lane Tyres Limited | Wholesale & retail | 2006 |
| Hot Olives Productions Limited | Information & communication | 2025 |
| Hot Picks Ltd | Hospitality | 2026 |
| Hot Point International Limited | Extraterritorial | 2015 |
| Hot TUB Heroes Ltd | Transport & logistics | 2024 |
| Hot TUB Holidays Ltd | Hospitality | 2019 |
| Hotel 346 Ltd | Hospitality | 2020 |
| Hotel Action Ltd | Extraterritorial | 2025 |
| Hotel Football Limited | Professional & scientific | 2011 |
| Hotel's Lavina Tourism Technology Consulting Services Ltd | Wholesale & retail | 2025 |
| Hotellabs UK Limited | Real estate | 2025 |
| Hotels Manchester Limited | Hospitality | 2013 |
| Hotels on Planet Earth Limited | Professional & scientific | 2015 |
| Hotep Herbs Ltd | Manufacturing | 2021 |
| Hotfeel Ltd | Wholesale & retail | 2025 |