| Hawkley Holdings Ltd | Financial services | 2026 |
| Hawkley Property 1 Ltd | Real estate | 2026 |
| Hawks Eyes Food Private Ltd | Wholesale & retail | 2025 |
| Hawks MCR Motors Ltd | Wholesale & retail | 2024 |
| Hawks Traders Ltd | Wholesale & retail | 2022 |
| Hawksbury Hotels Limited | Professional & scientific | 2019 |
| Hawkseed Theatre Ltd | Arts & recreation | 2021 |
| Hawkshaw Ltd | Information & communication | 2021 |
| Hawksmoor Construction Ltd | Administrative & support | 2017 |
| Hawkstone Search Limited | Administrative & support | 2025 |
| Hawkswell Kilvington Limited | Administrative & support | 2005 |
| Hawler Laundry Ltd | Other services | 2018 |
| Hawley Gardens Management Company Limited | Real estate | 2011 |
| Haworth & Lees Solicitors Ltd | Professional & scientific | 2010 |
| Haworth Construction Management Ltd | Construction | 2021 |
| Hawraz Barbers DL Ltd | Professional & scientific | 2022 |
| Hawthorn Hotel Limited | Hospitality | 2018 |
| Hawthorn House Day Nursery Limited | Education | 2013 |
| Hawthorn Leisure (Bravo Inns) Limited | Hospitality | 2019 |
| Hawthorn Leisure Acquisitions Limited | Hospitality | 2014 |
| Hawthorn Leisure Holdings Limited | Financial services | 2014 |
| Hawthorn Leisure Honey Limited | Hospitality | 2014 |
| Hawthorn Leisure Limited | Hospitality | 2013 |
| Hawthorn Leisure Management Limited | Hospitality | 2014 |
| Hawthorn Leisure Scotco Limited | Hospitality | 2015 |
| Hawthorn Lighting Ltd | Energy | 2019 |
| Hawthorn Motors Limited | Wholesale & retail | 2014 |
| Hawthorne & Finch Interiors Ltd | Wholesale & retail | 2026 |
| Hawthorne Edge Limited | Financial services | 2026 |
| Hawthorne House (Wilmslow) Management Company Limited | Households | 2005 |
| Hawthorne Lodge Properties Limited | Real estate | 2020 |
| Haxden Properties Limited | Extraterritorial | 1964 |
| HAY Market Food Store Ltd | Wholesale & retail | 2021 |
| HAY Market Restaurant Ltd | Hospitality | 2014 |
| HAY Neurodevelopmental Services Limited | Health & social care | 2025 |
| Haya by Hana Limited | Wholesale & retail | 2023 |
| Haya Lucky Ltd | Wholesale & retail | 2025 |
| Haya Properties Ltd | Real estate | 2019 |
| Hayaatgirls Ltd | Wholesale & retail | 2025 |
| Hayat Care Services Ltd | Health & social care | 2024 |
| Hayat for Trading Ltd | Wholesale & retail | 2025 |
| Hayat Hub Ltd | Wholesale & retail | 2026 |
| Hayat Trading (MCR) Ltd | Wholesale & retail | 2021 |
| Hayati Traders Limited | Wholesale & retail | 2025 |
| Haych Convenience Store Limited | Wholesale & retail | 2024 |
| Haych Electrical Ltd | Manufacturing | 2025 |
| Haych Tech Ltd | Wholesale & retail | 2016 |
| Haycl Ltd | Construction | 2025 |
| Hayden Active Limited | Arts & recreation | 2026 |
| Hayden Home Property Limited | Real estate | 2025 |
| Hayden Ndlovu Health Care Limited | Health & social care | 2026 |
| Hayden Properties Limited | Real estate | 2013 |
| Hayder Logistics Ltd | Wholesale & retail | 2021 |
| Haydn Case Air Conditioning Ltd | Administrative & support | 2010 |
| Haydn Food & Wines Limited | Wholesale & retail | 2019 |
| Haydn's Kosher Meats Limited | Wholesale & retail | 2002 |
| Haydock Express Ltd | Hospitality | 2025 |
| Haye Fitness Ltd | Information & communication | 2025 |
| Hayes Hospitality and Facilities Solutions Limited | Professional & scientific | 2025 |
| Hayes Joinery Limited | Construction | 2003 |
| Hayes of Manchester Limited | Wholesale & retail | 2003 |
| Hayes Own Courier Services Limited | Transport & logistics | 2025 |
| Hayes Property (MCR) Limited | Real estate | 2023 |
| Hayes Renovations Limited | Real estate | 2024 |
| Hayes Sales Outsourcing Limited | Wholesale & retail | 2024 |
| Hayes Utilities Northwest Ltd | Construction | 2020 |
| Hayes-Gb Ltd | Information & communication | 2023 |
| Hayescroft Holdings Ltd | Real estate | 2025 |
| Hayesleech Developments Limited | Construction | 2015 |
| Hayginist Limited | Health & social care | 2023 |
| Hayibo Imports Limited | Wholesale & retail | 2021 |
| Haykil Properties Limited | Real estate | 1999 |
| Haylem Direct Ltd | Wholesale & retail | 2024 |
| Hayley Bonnick Marketing Ltd | Professional & scientific | 2025 |
| Haymarc Retail Limited | Wholesale & retail | 2014 |
| Hayme International Ltd | Wholesale & retail | 2026 |
| Haymira Pharm Ltd | Wholesale & retail | 2022 |
| Haynes International Ltd | Manufacturing | 1975 |
| Haynes Property Investments Limited | Real estate | 2021 |
| Hayra Ltd | Wholesale & retail | 2026 |
| Hayre & Co Solicitors Limited | Professional & scientific | 2009 |
| Hayre Investments ( Ealing ) Ltd. | Real estate | 2013 |
| Hays Property Ltd | Real estate | 2025 |
| Hayseed Dixie Ltd | Arts & recreation | 2018 |
| Haystack Capital Limited | Real estate | 1998 |
| Haystech Group Ltd | Information & communication | 2019 |
| Haytch Accountants Ltd | Professional & scientific | 2020 |
| Haytkins Limited | Professional & scientific | 2018 |
| Hayton of Fleetwood Limited | Mining & quarrying | 1983 |
| Hayvern Electrical Limited | Construction | 2002 |
| Hayvern Holdings Limited | Financial services | 2019 |
| Hayz Securities Limited | Real estate | 2024 |
| HAZ B Limited | Hospitality | 2026 |
| HAZ Greenwood Ltd | Real estate | 2014 |
| Hazaar Limited | Wholesale & retail | 2020 |
| Hazak Enterprises Ltd | Professional & scientific | 2026 |
| Hazak Ltd | Hospitality | 2024 |
| Hazal Architectural Consultancy Limited | Professional & scientific | 2020 |
| Hazaq Enterprise Ltd | Wholesale & retail | 2025 |
| Hazard and Risk Management Ltd | Professional & scientific | 2006 |