| Have a Move Ltd | Transport & logistics | 2026 |
| Haveli Lounge Ltd | Hospitality | 2025 |
| Haveli Properties Ltd | Real estate | 2020 |
| Haveli Wellness Ltd | Health & social care | 2024 |
| Havelock Broom Ltd | Wholesale & retail | 2025 |
| Havelock Estates (Management) Limited | Real estate | 2002 |
| Haven IS Limited | Real estate | 2026 |
| Haven Partnership LLP | | 2019 |
| Havenfine Trading Limited | Construction | 2000 |
| Havenmetrics Ltd | Wholesale & retail | 2025 |
| Havlins Ltd | Wholesale & retail | 2025 |
| Havp Ltd | Real estate | 2025 |
| Havyn Limited | Health & social care | 2026 |
| Hawa Essential Plus Limited | Wholesale & retail | 2013 |
| Hawaa Ltd | Wholesale & retail | 2020 |
| Hawcliffe Group Ltd | Financial services | 2025 |
| Hawgrip Holdings Limited | Financial services | 2023 |
| Hawk Blue Limited | Information & communication | 2019 |
| Hawk Metal Ltd | Construction | 2026 |
| Hawkeye Distributions Limited | Transport & logistics | 2025 |
| Hawkeye Transport Services Ltd | Transport & logistics | 2025 |
| Hawkhurst Best Ltd | Transport & logistics | 2015 |
| Hawkins Catering Solutions Ltd | Hospitality | 2020 |
| Hawkish Business and Finance Ltd | Professional & scientific | 2022 |
| Hawkish Group Ltd | Information & communication | 2018 |
| Hawkish Property Ltd | Real estate | 2018 |
| Hawkish Technology Ltd | Information & communication | 2020 |
| Hawks Commercials (Leicester) Ltd | Wholesale & retail | 2024 |
| Hawks Driving Academy Ltd | Education | 2024 |
| Hawks Haulage Ltd | Transport & logistics | 2017 |
| Hawks Hotels Ltd | Hospitality | 2021 |
| Hawkstead Commercial Ltd | Real estate | 2015 |
| Hawthorn & Country Ltd | Construction | 2025 |
| Hawthorn Events Ltd | Extraterritorial | 2023 |
| Hawthorn Glen Ltd | Wholesale & retail | 2025 |
| Hawthorn Textiles Limited | Manufacturing | 2022 |
| Hawthorne Care Limited | Health & social care | 2016 |
| Hawthorne Court Management (Leicester) Limited | Households | 1991 |
| Hawthorne Health Enterprises Ltd | Health & social care | 2025 |
| Hawthorne Horticulture Ltd | Wholesale & retail | 2024 |
| Hawthorns Medical Ltd | Health & social care | 2025 |
| Haxby Business Services Limited | Administrative & support | 2025 |
| HAY Storage Ltd | Other services | 2024 |
| Hayaan Limited | Wholesale & retail | 2015 |
| Hayaat UK North Gate Limited | Real estate | 2025 |
| Hayah Al-Muslimah Limited | Wholesale & retail | 2019 |
| Hayaki Limited | Wholesale & retail | 2020 |
| Hayat Global Enterprises Ltd | Professional & scientific | 2024 |
| Hayat Initiative CIC | Education | 2025 |
| Hayat Trading Limited | Wholesale & retail | 2008 |
| Haybrooke & Bay Ltd | Administrative & support | 2023 |
| Haycock Physiotherapy & Performance Limited | Other services | 2019 |
| Hayden Logistics Ltd | Transport & logistics | 2014 |
| Haydn Malton Ltd | Wholesale & retail | 2025 |
| Haye Investments Ltd | Financial services | 2020 |
| Hayer Accounts Limited | Professional & scientific | 2024 |
| Hayer Apparel Limited | Wholesale & retail | 2025 |
| Hayer Developments Limited | Real estate | 2023 |
| Hayer Group Ltd | Transport & logistics | 2021 |
| Hayer Logistics & Freight Ltd | Transport & logistics | 2024 |
| Hayes Domestic and Commercial GAS Limited | Construction | 2024 |
| Hayes Electrical Services Ltd | Construction | 2011 |
| Hayley LAI Beauty Ltd | Other services | 2025 |
| Hayley Louise Hairdressing Ltd | Other services | 2026 |
| Haynes (UK) Ltd | Professional & scientific | 2014 |
| Haynes Gardens Limited | Real estate | 2017 |
| Hayward Architects Limited | Professional & scientific | 1997 |
| HAZ Discounts Ltd | Wholesale & retail | 2020 |
| Hazaka Limited | Health & social care | 2016 |
| Hazar Agro UK Ltd | Wholesale & retail | 2025 |
| Hazazm Limited | Wholesale & retail | 2021 |
| Hazel Melchant Ltd | Wholesale & retail | 2025 |
| Hazelnut Cafe Ltd | Hospitality | 2025 |
| Hazelnut Group Ltd | Wholesale & retail | 2026 |
| Hazelton Properties Limited | Financial services | 2018 |
| Hazelwood Park Rental Limited | Real estate | 2018 |
| Hazlett Health Ltd | Health & social care | 2021 |
| Hazlett Residential Ltd | Real estate | 2022 |
| Hazzcorp Limited | Extraterritorial | 2015 |
| Hazzmocar Ltd | Wholesale & retail | 2025 |
| HB Aesthetics Clinic Ltd | Health & social care | 2023 |
| HB Classics Ltd | Wholesale & retail | 2025 |
| HB Financial Independence Ltd | Financial services | 2017 |
| HB Health Hub Ltd | Arts & recreation | 2025 |
| HB Lifts Limited | Construction | 2024 |
| HB Nutrition Limited | Health & social care | 2014 |
| HB Pharma Limited | Wholesale & retail | 2016 |
| HBA Building Construction Ltd | Construction | 2017 |
| HBB7 Ltd | Wholesale & retail | 2024 |
| HBD Systems Limited | Administrative & support | 2017 |
| Hbdm Holdings Ltd | Real estate | 2024 |
| HBH Tech Ltd | Administrative & support | 2022 |
| HBJ Holdings Limited | Financial services | 2021 |
| HBK Construction Ltd | Construction | 2016 |
| HBL Realisations 2010 Limited | Manufacturing | 2003 |
| HBP Properties Ltd | Real estate | 2016 |
| HBS Auto Services Limited | Wholesale & retail | 2010 |
| HBT Engineering Services Limited | Professional & scientific | 1985 |
| HBV Chester Ltd | Construction | 2023 |
| HC & C Holdings Ltd | Financial services | 2019 |