| Havn Technologies Limited | Information & communication | 2026 |
| Havn Training Limited | Education | 2026 |
| Havn Wellness Ltd | Other services | 2026 |
| Havyilah Ltd | Wholesale & retail | 2020 |
| Hawa Daycare & Nursery Ltd | Education | 2014 |
| Hawa Group Ltd | Financial services | 2025 |
| Hawa Holdings Limited | Real estate | 2019 |
| Hawa Property Ltd | Real estate | 2025 |
| Hawa Studios Ltd | Professional & scientific | 2025 |
| Hawah Cosmetics Limited | Wholesale & retail | 2023 |
| Hawalondonhome Ltd | Wholesale & retail | 2026 |
| Hawaz Clothing Ltd | Wholesale & retail | 2026 |
| Hawa’S Daughters Ltd | Information & communication | 2024 |
| Hawcombe Care Limited | Health & social care | 2025 |
| Hawecha Group Limited | Real estate | 2024 |
| Haweli Catering Limited | Hospitality | 2025 |
| Haweli Enterprises Ltd | Other services | 2024 |
| Haweli Group Limited | Hospitality | 2024 |
| Haweli Restaurant Limited | Hospitality | 2004 |
| Hawin Travel Limited | Administrative & support | 2025 |
| Hawind Impex LP | | 2022 |
| Hawk Asset Co. Ltd | Administrative & support | 2023 |
| Hawk Bidco Limited | Financial services | 2019 |
| Hawk Buffet Ltd | Hospitality | 2024 |
| Hawk Business Global Ltd | Wholesale & retail | 2026 |
| Hawk Construction Limited | | 1991 |
| Hawk Group Services Ltd | Administrative & support | 2022 |
| Hawkbridge Consultancy Limited | Professional & scientific | 2025 |
| Hawke Systems Ltd | Administrative & support | 2019 |
| Hawkes Four Limited | Households | 2005 |
| Hawkesley Shopfittings Limited | Manufacturing | 2012 |
| Hawkeswood Holding Group Limited | Financial services | 2014 |
| Hawkeswood Metals Ltd | Wholesale & retail | 2001 |
| Hawkeswood Propco Limited | Real estate | 2014 |
| Hawkins Housing Ltd | Real estate | 2025 |
| Hawkmet Limited | Wholesale & retail | 2012 |
| Hawks Green Ltd | Hospitality | 2017 |
| Hawkslea Limited | Construction | 2019 |
| Hawksmarsh Properties Limited | Construction | 2022 |
| Hawksmead Capital Limited | Real estate | 2026 |
| Hawksmead Construction Limited | Construction | 2019 |
| Hawksmead Development Limited | Administrative & support | 2000 |
| Hawksmead Group Limited | Financial services | 2019 |
| Hawksmead Properties Limited | Real estate | 2003 |
| Hawksmoore Investments Limited | Construction | 2016 |
| Hawksmount Properties Limited | Construction | 2021 |
| Hawksridge Properties Limited | Construction | 2019 |
| Hawksvalley Properties Limited | Construction | 1999 |
| Hawksworth Homes Ltd | Real estate | 2026 |
| Hawler Barbers Ltd | Other services | 2019 |
| Haworth Properties Limited | Real estate | 2025 |
| Hawraman Dairy Ltd | Manufacturing | 2022 |
| Hawthorn 40 Ltd | Real estate | 2019 |
| Hawthorn Companies Ltd | Wholesale & retail | 2009 |
| Hawthorn Hygienic Limited | Manufacturing | 2020 |
| Hawthorne Medical Services Ltd | Health & social care | 2022 |
| Hawthorns Care Home Limited | Health & social care | 2020 |
| Hawthorns Middlemore Ltd | Transport & logistics | 2021 |
| HAX Ltd | Professional & scientific | 2022 |
| Haxdon Group Limited | Wholesale & retail | 2024 |
| HAY Mills Carpets Ltd | Wholesale & retail | 2022 |
| HAY Property Group Limited | Real estate | 2026 |
| Haya Activewear Ltd | Wholesale & retail | 2022 |
| Haya Home & Decor Ltd | Wholesale & retail | 2024 |
| Haya London Limited | Wholesale & retail | 2026 |
| Hayaabydua Ltd | Wholesale & retail | 2024 |
| Hayashi Ltd | Hospitality | 2019 |
| Hayat and Brothers Ltd | Wholesale & retail | 2022 |
| Hayat Apartments Limited | Extraterritorial | 2024 |
| Hayat Convenience Store Limited | Wholesale & retail | 2024 |
| Hayat Ecomart Limited | Construction | 2025 |
| Hayat Grocery Shop 2 Ltd | Wholesale & retail | 2024 |
| Hayat Group Ltd | Hospitality | 2025 |
| Hayat Innovations Ltd | Wholesale & retail | 2025 |
| Hayat Investment Holdings Limited | Professional & scientific | 2013 |
| Hayat Investment Properties Ltd | Real estate | 2019 |
| Hayat Medical Services Ltd | Health & social care | 2016 |
| Hayat Perfumes Ltd | Wholesale & retail | 2025 |
| Hayat Strategic Solutions Limited | Transport & logistics | 2025 |
| Hayat Taym Ltd | Wholesale & retail | 2024 |
| Hayati Go Ltd | Hospitality | 2026 |
| Hayatlife Ltd | Professional & scientific | 2023 |
| Haych Investments Limited | Professional & scientific | 2021 |
| Haych Property Services Ltd | Real estate | 2024 |
| Haych R Tech Ltd | Wholesale & retail | 2024 |
| Haych Shop Ltd | Wholesale & retail | 2023 |
| HAYCH247 Limited | Transport & logistics | 2025 |
| Haychlo Ltd | Transport & logistics | 2011 |
| Haycock Financial Planning Limited | Financial services | 2024 |
| Hayden Build Services Ltd | Construction | 2026 |
| Hayden Developments (Perryfields) Limited | Construction | 2026 |
| Hayden Developments Limited | Construction | 2026 |
| Hayden Family Investment Company | Financial services | 2016 |
| Hayden Hill Limited | Wholesale & retail | 2006 |
| Hayden Shopfronts & Shutters Ltd | Manufacturing | 2025 |
| Haydens Residential Surveyors Ltd | Professional & scientific | 2024 |
| Hayer Brothers UK Ltd | Wholesale & retail | 2024 |
| Hayer Family Holdings Ltd | Financial services | 2018 |
| Hayer Lettings Limited | Real estate | 2022 |
| Hayer PH Limited | Real estate | 2026 |