| Hats Properties (NW) Ltd | Real estate | 2026 |
| Hats World (MCR) Ltd | Wholesale & retail | 2019 |
| Hatten FM Transformation Limited | Professional & scientific | 2016 |
| Hatter Street Nominees Ltd | Extraterritorial | 2016 |
| Hattie Group Limited | Professional & scientific | 2023 |
| Hatton Global Ltd | Wholesale & retail | 2016 |
| Hatton Property Ltd | Real estate | 2026 |
| Hatx UK Limited | Wholesale & retail | 2025 |
| Haughton Estates Limited | Real estate | 2018 |
| Haughton Properties Limited | Real estate | 2022 |
| Haughtons Greens Limited | Administrative & support | 2025 |
| Haulvion Holdings Ltd | Financial services | 2026 |
| Haumai Limited | Wholesale & retail | 2025 |
| Haunt MCR Limited | Hospitality | 2020 |
| Haunted Dancehall Ltd | Wholesale & retail | 2022 |
| Haus Dekor by Range Interiors Limited | Wholesale & retail | 2026 |
| Haus Didsbury Limited | Hospitality | 2024 |
| Haus Fallowfield Limited | Hospitality | 2023 |
| Haus of Black Lotus Ltd | Manufacturing | 2025 |
| Haus of Cavalli Ltd | Other services | 2026 |
| Haus of MAC Ltd | Other services | 2025 |
| Haus of Maha Ltd | Wholesale & retail | 2024 |
| Hauscape Ltd | Real estate | 2023 |
| Hauser Capital Investments Ltd | Construction | 2012 |
| Hauses Technologies Ltd | Information & communication | 2026 |
| Hausverwaltung Hooijer Ltd | Extraterritorial | 2023 |
| Haute Consulting Ltd | Administrative & support | 2022 |
| Haval Tech Limited | Wholesale & retail | 2025 |
| Havana Care Services Ltd | Health & social care | 2023 |
| Havana Developments UK Limited | Real estate | 2025 |
| Havana Enterprise Ltd | Administrative & support | 2024 |
| Havana Fried Chicken Ltd | Hospitality | 2021 |
| Havana Gold Limited | Wholesale & retail | 2021 |
| Havana Property Holdings UK Limited | Financial services | 2025 |
| Havant Assets (NO 2) Limited | Extraterritorial | 2012 |
| Havant Assets Limited | Extraterritorial | 2012 |
| Havant LL Limited | Extraterritorial | 2001 |
| Havaroam Ltd | Wholesale & retail | 2025 |
| Havebest Limited | Wholesale & retail | 2012 |
| Haveda Limited | Professional & scientific | 2017 |
| Havellon Group Ltd | Real estate | 2026 |
| Havellon Limited | Wholesale & retail | 2025 |
| Haven & Host Ltd | Real estate | 2025 |
| Haven Best Care Ltd | Administrative & support | 2026 |
| Haven Dent Limited | Health & social care | 2022 |
| Haven Health Properties Ltd | Real estate | 2000 |
| Haven Heights Homecare Ltd | Health & social care | 2024 |
| Haven Home Interiors Ltd | Wholesale & retail | 2025 |
| Haven Homes Child Care Ltd | Health & social care | 2025 |
| Haven Hub Connoisseur Vision Ltd | Wholesale & retail | 2025 |
| Haven Living Solutions Ltd | Real estate | 2022 |
| Haven Meadows Amenity Management Limited | Real estate | 2002 |
| Haven Properties Development Limited | Real estate | 2009 |
| Haven Properties Manchester Ltd | Real estate | 2025 |
| Haven Retreat Ltd | Hospitality | 2025 |
| Haven Seekers Investement Ltd | Real estate | 2025 |
| Haven Taste Limited | Hospitality | 2025 |
| Haven Thrust Global Investments Ltd | Extraterritorial | 2026 |
| Haven Tree Properties Ltd | Real estate | 2021 |
| Haven View Management Company Limited | Real estate | 2025 |
| Havencrown Properties Limited | Real estate | 2002 |
| Havend Ltd | Real estate | 2026 |
| Haveno Holdings Ltd | Financial services | 2024 |
| Havens Solutions Ltd | Real estate | 2024 |
| Havenscope Acquisitions Ltd | Real estate | 2025 |
| Havenstone Developments Ltd | Real estate | 2007 |
| Havenwood Luxury Management Ltd | Households | 2025 |
| Havenza Living Ltd | Real estate | 2026 |
| Haverfordwest Assets (NO 2) Limited | Extraterritorial | 2020 |
| Haverfordwest Assets Limited | Extraterritorial | 2020 |
| Havfun Ltd | Wholesale & retail | 2023 |
| Havi Group Limited | Financial services | 2020 |
| Havihas Limited | Wholesale & retail | 2021 |
| Havilah Eden Holdings Ltd | Financial services | 2021 |
| Havilah Gold Care Ltd | Health & social care | 2025 |
| Havilah Homes Ltd | Real estate | 2020 |
| Havillah Consults Limited | Professional & scientific | 2015 |
| Havira Homes Ltd | Real estate | 2022 |
| Havsolutions Ltd | Professional & scientific | 2025 |
| HAW MCR Ltd | Professional & scientific | 2024 |
| Hawa Alriyf Ltd | Wholesale & retail | 2026 |
| Hawa Fashion NW Ltd | Wholesale & retail | 2024 |
| Hawaa Gifts Ltd | Wholesale & retail | 2025 |
| Hawai Property Group Ltd | Real estate | 2025 |
| Hawakil Ltd | Hospitality | 2022 |
| Hawc Investments Ltd | Financial services | 2023 |
| Hawhill Property Limited | Real estate | 2021 |
| Hawk & Eagle Associates Limited | Professional & scientific | 2012 |
| Hawk Appliances Limited | Wholesale & retail | 2017 |
| Hawk Auto Stripper Limited | Wholesale & retail | 2020 |
| Hawk Barber Ltd | Other services | 2024 |
| Hawk Dance Theatre Ltd | Arts & recreation | 2015 |
| Hawk Supportive Living Ltd | Hospitality | 2025 |
| Hawk Threads Ltd | Wholesale & retail | 2024 |
| Hawker Accounting Solutions Limited | Professional & scientific | 2017 |
| Hawkeye Property Group Limited | Other services | 2026 |
| Hawkeyes Logistics UK Ltd | Wholesale & retail | 2017 |
| Hawkhead Ltd | Hospitality | 2019 |
| Hawkins Talkin Ltd | Arts & recreation | 2020 |
| Hawkjets Ltd | Wholesale & retail | 2023 |