| HB Dance Limited | Arts & recreation | 2025 |
| Hbks Services Ltd | Extraterritorial | 2023 |
| HBL Property Holdings Limited | Real estate | 2026 |
| HCA Trading Limited | Hospitality | 2021 |
| HD Research Ltd | Professional & scientific | 2020 |
| HDH Planning & Development Ltd | Information & communication | 2013 |
| Health Business Support Services Ltd | Professional & scientific | 2011 |
| Heat IT EAT IT Ltd | Hospitality | 2025 |
| Heat Pump SOS Ltd | Manufacturing | 2020 |
| Heathcliffe Court (Arnside) Management Company Limited | Households | 1989 |
| Heather Tierney-Moore Associates Limited | Professional & scientific | 2018 |
| Heathland Beach Caravan Park Limited | Hospitality | 2003 |
| Heathland Beach Holiday Park Limited | Hospitality | 2024 |
| Heaton Hair Limited | Other services | 2009 |
| Heavenly Hearing Ltd | Wholesale & retail | 2018 |
| Heaword Holdings LLP | | 2024 |
| Hedera Ltd | Wholesale & retail | 2020 |
| Heights Accountancy Ltd | Professional & scientific | 2025 |
| Heike Horsburgh Limited | Professional & scientific | 2012 |
| Heim Research Consultancy Limited | Professional & scientific | 2010 |
| Help for Wealth Ltd | Financial services | 2017 |
| Helwith Bridge Ltd. | Hospitality | 2015 |
| Hemp Point Ltd | Wholesale & retail | 2021 |
| Henry Rose Investments Limited | Real estate | 2008 |
| Hepwood Associates Limited | Real estate | 2003 |
| Herlebeck Rise RTM Company Limited | Households | 2023 |
| Heron Mill Developments Limited | Construction | 2017 |
| Herons Nest Management Company Limited | Households | 1989 |
| Heronswood Farm Ltd | Real estate | 2018 |
| Hesketh Oral Surgery Limited | Health & social care | 2024 |
| Hest Bank Kennels Limited | Other services | 2017 |
| Hest Management Company Limited | Real estate | 2016 |
| Hey.Im Ltd | Administrative & support | 2020 |
| Heys Scientific Limited | Professional & scientific | 2022 |
| Heysham Ships Agency Limited | Transport & logistics | 1998 |
| Heysham Truck Hire Limited | Wholesale & retail | 2012 |
| Heysham Trucks Limited | Wholesale & retail | 2000 |
| HG Multimedia Ltd | Wholesale & retail | 2022 |
| HG West Limited | Financial services | 2026 |
| HGY Media Ltd | Information & communication | 2017 |
| HHP Property Ltd | Real estate | 2025 |
| Hickie Consulting Limited | Information & communication | 2016 |
| Higgnet Limited | Professional & scientific | 2010 |
| High BEE Ltd | Transport & logistics | 2020 |
| High Bracken Holiday Homes Ltd | Wholesale & retail | 2006 |
| High Chapparal Limited | Professional & scientific | 2026 |
| High Efficiency Installations Ltd. | Construction | 2007 |
| High Wire Movie Ltd | Information & communication | 2023 |
| Highest Point Scaffolding Ltd | Construction | 2025 |
| Highfield Fisheries and Leisure Lodge Park Limited | Hospitality | 2020 |
| Highfield Nutrition Consultancy Ltd | Professional & scientific | 2020 |
| Highfields Management Company (Nether Kellet) Limited | Real estate | 2020 |
| Highmount Residents Company Limited | Households | 1993 |
| Hightown Properties Limited | Administrative & support | 2001 |
| Hilton Grand Vacations (Europe) Limited | Other services | 1989 |
| Hilton Grand Vacations (Group Holdings) Limited | Professional & scientific | 1993 |
| Hilton Grand Vacations (Holdings) Limited | Professional & scientific | 2004 |
| Hilton Grand Vacations UK Holding Limited | Financial services | 2017 |
| Hilton Grand Vacations UK Limited | Hospitality | 2012 |
| Hinniwell Limited | Real estate | 2023 |
| Hinniwell Properties Limited | Real estate | 2026 |
| HJP Building and Fabrication Ltd | Manufacturing | 2020 |
| HK Partnership Limited | Hospitality | 2022 |
| HLS Northwest Ltd | Construction | 2020 |
| HM & Co Advisory Limited | Professional & scientific | 2026 |
| HM Productions Ltd | Information & communication | 2017 |
| HM47 Ltd | Other services | 2011 |
| HMA Ground Care Limited | Agriculture & fishing | 2021 |
| HMA Tree Care Limited | Extraterritorial | 2021 |
| Hodge Robinson Properties Ltd | Real estate | 2021 |
| Hodgsons & Eden Ltd | Real estate | 2014 |
| Hodgsons Chippy Limited | Hospitality | 2004 |
| Hoggarth Dairy Limited | Agriculture & fishing | 2023 |
| Holdens Law Ltd | Professional & scientific | 2021 |
| Holiday LET Compliance Ltd | Hospitality | 2025 |
| Holiday Park People Limited | Professional & scientific | 2024 |
| Holmefield Design Limited | Manufacturing | 2007 |
| Holmes Cycling Limited | Education | 2019 |
| Holywell Children's Services Limited | Health & social care | 2017 |
| Home Giant Ltd | Wholesale & retail | 2025 |
| Home Select Carpets (Morecambe) Limited | Construction | 2003 |
| Homebreeze House RTM Company Limited | Households | 2025 |
| Hometown Rides Ltd | Transport & logistics | 2025 |
| Honest Accounting Limited | Professional & scientific | 2023 |
| Honest Payroll Group Limited | Financial services | 2025 |
| Honeyadore Ltd | Wholesale & retail | 2025 |
| Honeycott Limited | Hospitality | 2020 |
| Hoole Properties Limited | Real estate | 2023 |
| Hope and Hayes Ltd | Construction | 2024 |
| Horace Green & Co.,Limited | Real estate | 1923 |
| Horizon Creative Media Ltd | Professional & scientific | 2015 |
| Hornby Day Nursery Limited | Education | 2010 |
| Hornby Tea Rooms Limited | Hospitality | 2020 |
| Hornby Village Trust | Administrative & support | 2015 |
| Hornby Village Trust Trading Company Limited | Hospitality | 2015 |
| Host IT Blackpool Limited | Hospitality | 2022 |
| Hosting-Un Limited | Information & communication | 2021 |
| Hotbox Lancaster Ltd | Arts & recreation | 2024 |
| Hotfoot Design Limited | Administrative & support | 2002 |
| House of Alexandra Dance Company Limited | Arts & recreation | 2025 |