| Hope Valley Holdings Limited | Administrative & support | 2017 |
| HOPE4COMMUNITY CIC | Hospitality | 2026 |
| Hopetown Liberal Working Men's Club Limited | Hospitality | 2025 |
| Hopeway Trading Ltd | Wholesale & retail | 2025 |
| Hopewell & Rose Investments Limited | Administrative & support | 2021 |
| Hopewell Property Holdings Ltd | Real estate | 2026 |
| Hopkins (Plumbers) Limited | Wholesale & retail | 1947 |
| Hopkins Engineering Limited | Professional & scientific | 1997 |
| Hopkinson Hospitality Limited | Hospitality | 2022 |
| Hopper Events Limited | Administrative & support | 2015 |
| Hopps Limited | Professional & scientific | 2013 |
| Hops & Heritage Ltd | Arts & recreation | 2025 |
| Hoptons of Epworth Limited | Wholesale & retail | 2012 |
| Horaman Limited | Wholesale & retail | 2024 |
| Hordron Technical Services Ltd | Manufacturing | 2020 |
| Horgan Carpets Limited | Wholesale & retail | 2000 |
| Horizon Block Management Limited | Real estate | 2017 |
| Horizon Care (Waterside House) Limited | Health & social care | 2012 |
| Horizon Care Supported Living Limited | Health & social care | 2012 |
| Horizon Global Trade Limited | Wholesale & retail | 2025 |
| Horizon KPR Ltd | Health & social care | 2025 |
| Horizon Landings Limited | Professional & scientific | 2011 |
| Horizon Lets Limited | Real estate | 2017 |
| Horizon Residential Properties Ltd | Real estate | 2023 |
| Horizon Results Limited | Professional & scientific | 2020 |
| Horizon RR Ltd | Real estate | 2024 |
| Horizon Sales & Imports Ltd | Wholesale & retail | 2018 |
| Hornby Court Flat Company Limited | Households | 1966 |
| Hornedowg Holdings Ltd | Financial services | 2025 |
| Hornthorpe Building Services Limited | Construction | 2005 |
| Horse and Groom SL Ltd | Hospitality | 2025 |
| Horse Legal Ltd | Professional & scientific | 2020 |
| Horseguards London DRY GIN Limited | Manufacturing | 2017 |
| Horseshoe Distribution Limited | Transport & logistics | 2001 |
| Horsfall Property Limited | Real estate | 2023 |
| Horsleygate Properties Limited | Real estate | 2017 |
| Horton Building Services Ltd | Construction | 2014 |
| Horton Fulfilment Ltd | Wholesale & retail | 2024 |
| Horton Properties Limited | Construction | 2001 |
| Horton Property Developments Ltd | Construction | 2024 |
| Hortons Electrical & EV Ltd | Construction | 2025 |
| Hortons EV Yorkshire Ltd | Construction | 2025 |
| Hosezone Limited | Financial services | 2017 |
| Hosgord Limited | Construction | 2017 |
| Hospiplus Ltd | Health & social care | 2016 |
| Hospitality House Ltd | Hospitality | 2016 |
| Hossegor Ltd | Professional & scientific | 2021 |
| Host 2 Stay Properties Ltd | Real estate | 2025 |
| Hostombe Group Limited | Professional & scientific | 1939 |
| Hostombe Properties Limited | Real estate | 1979 |
| Hot D 2002 Ltd | Professional & scientific | 1965 |
| Hot Property Solutions Ltd | Real estate | 2024 |
| Hot Wings Limited | Hospitality | 2026 |
| Hotbox Pizza Ltd | Hospitality | 2025 |
| Hotchen Construction Limited | Construction | 2023 |
| Hotel + Home Ltd | Other services | 2014 |
| Hotel Rudyard Limited | Hospitality | 2020 |
| Hoth Limited | Real estate | 2022 |
| Hothouse Beauty Limited | Other services | 2007 |
| Hothouse Holdings Limited | Wholesale & retail | 2018 |
| Hothouse Holdings Properties Limited | Real estate | 2020 |
| Hothouse Partnerships Limited | Other services | 2019 |
| Hotpod Steel City Ltd | Arts & recreation | 2019 |
| Hotseller Ltd | Wholesale & retail | 2023 |
| Hotshots Properties Limited | Real estate | 2025 |
| Hotshots Snooker Club Ltd | Arts & recreation | 2013 |
| Hough & Blyth Limited | Public administration | 2024 |
| Houndkirk Ltd | Real estate | 2013 |
| Houndkirk View Management Company Limited | Households | 2024 |
| Hour Wellness Ltd | Wholesale & retail | 2026 |
| House & Home Properties Ltd | Real estate | 2019 |
| House & KIN Limited | Hospitality | 2025 |
| House Collective - Pilates Nutrition & Coffee Ltd | Other services | 2026 |
| House Extension Design Limited | Professional & scientific | 2006 |
| House of Delight Ltd | Wholesale & retail | 2026 |
| House of D’Auvergne Ltd | Financial services | 2025 |
| House of Gaea Limited | Wholesale & retail | 2010 |
| House of Jerera Ltd | Manufacturing | 2026 |
| House of Kaarigari Ltd | Wholesale & retail | 2021 |
| House of Morgan Limited | Other services | 2023 |
| House of N&M Ltd | Wholesale & retail | 2025 |
| House of Passion Ltd | Hospitality | 2023 |
| House of Potential Limited | Wholesale & retail | 2023 |
| House of Rolfe Ltd | Administrative & support | 2017 |
| House of Rose Bespoke Ltd | Wholesale & retail | 2025 |
| House of Vejis Ltd | Health & social care | 2025 |
| House Proud Cleaning & Wellbeing Services Limited | Administrative & support | 2025 |
| House Proud Developments Ltd | Real estate | 2025 |
| House Proud Windows and Doors Ltd | Wholesale & retail | 2021 |
| House Story Limited | Professional & scientific | 2025 |
| House Tree Ltd | Real estate | 2024 |
| Houseborne Ltd | Real estate | 2017 |
| Housefuel Limited | Manufacturing | 2014 |
| Houselegal Limited | Information & communication | 2019 |
| Housesunny Limited | Real estate | 2003 |
| Housing IC Ltd | Professional & scientific | 2013 |
| Housley Holdings Limited | Real estate | 2025 |
| Housley Home Renovations Limited | Construction | 2025 |
| Houzzlife Ltd | Construction | 2018 |
| HOW I Limited | Education | 2023 |