| HAB Developments Limited | Construction | 2019 |
| Habanero Ltd | Health & social care | 2022 |
| Hackett-Jones Investments Limited | Construction | 2013 |
| Hacketts Saddlery Ltd | Wholesale & retail | 2016 |
| Hackney Brewery Ltd | Manufacturing | 2011 |
| Haden Solutions Limited | Information & communication | 2010 |
| Hadfields Bistro Ltd | Hospitality | 2022 |
| Hadhi Omar Limited | Transport & logistics | 2025 |
| Hadi Law Limited | Professional & scientific | 2011 |
| Hadi SM Civils Ltd | Wholesale & retail | 2020 |
| Hadi SM Investments Ltd | Real estate | 2018 |
| Hadley to House Ltd | Real estate | 2021 |
| Hadwins (Lindale) Limited | Wholesale & retail | 1970 |
| HAF Properties LLP | | 2022 |
| Hafiem Limited | Wholesale & retail | 2025 |
| Hafiza Investments Ltd | Real estate | 2021 |
| Hafod Suntime Company Limited(The) | Hospitality | 1983 |
| Hafz Ltd | Health & social care | 2024 |
| Haggag GP Limited | Health & social care | 2023 |
| Haiders Fastservices Ltd | Transport & logistics | 2025 |
| Haidery Private Ltd | Transport & logistics | 2024 |
| Haigh Civils Ltd | Construction | 2018 |
| Haigh Rail Limited | Construction | 2011 |
| Haighton Holdings Limited | Financial services | 2019 |
| Hails Properties Ltd | Real estate | 2025 |
| Hair by AMY K Limited | Other services | 2024 |
| Hair by Hilton Ltd | Other services | 2024 |
| Hair by J & L Limited | Other services | 2009 |
| Hair by Lisa Prescott Limited | Other services | 2016 |
| Hair Collective Space Limited | Real estate | 2013 |
| Hair Force One (Clayton) Ltd | Other services | 2026 |
| Hair Master Ribbleton Ltd | Other services | 2025 |
| Hair Salon (Preston) Ltd | Other services | 2023 |
| Hair Solutions Preston Ltd | Other services | 2019 |
| Hairlines (N.W.) Limited | Other services | 2003 |
| Haji Creations Ltd | Wholesale & retail | 2021 |
| Hajizac Ltd | Wholesale & retail | 2025 |
| Hakeem Homes Ltd | Real estate | 2025 |
| Hakimology Limited | Wholesale & retail | 2021 |
| Haks & Co North Limited | Transport & logistics | 2019 |
| Halaldrop.Com Ltd | Wholesale & retail | 2017 |
| Halby Ltd | Manufacturing | 2022 |
| Halcyon Place Management Company Limited | Households | 2021 |
| Hale HM Limited | Administrative & support | 2018 |
| Hale Plumbing & GAS Ltd | Construction | 2021 |
| Hales Hall Limited | Professional & scientific | 2025 |
| Halestorm Productions Ltd | Information & communication | 2016 |
| Haleworth Holdings Ltd | Financial services | 2022 |
| Haley & Lucas Limited | Financial services | 2014 |
| Haleys Business Advisers Limited | Professional & scientific | 2000 |
| Half Guard Barbers Ltd | Other services | 2018 |
| Half Oak Limited | Wholesale & retail | 2006 |
| Halfell Apparel Limited | Wholesale & retail | 2025 |
| Halfmidnight Films Ltd | Information & communication | 2025 |
| Halfpenny Properties Limited | Real estate | 2018 |
| Hall Building Contractors Ltd | Construction | 2014 |
| Hall of Hair Ltd | Other services | 2009 |
| Hall's Home Improvements & Renovations Limited | Construction | 2016 |
| Hallco 1022 Limited | Professional & scientific | 2004 |
| Hallco 75 Limited | Wholesale & retail | 1996 |
| Haller Boulevard Nominees Limited | Extraterritorial | 2007 |
| Halliburton Global Ltd | Professional & scientific | 2017 |
| Hallis-Hudson Group Limited | Wholesale & retail | 1976 |
| Halliwell Homecare Limited | Health & social care | 2023 |
| Halliwell Lewis Limited | Professional & scientific | 2007 |
| Hallmark Cars (Freckleton) Limited | Wholesale & retail | 1998 |
| Hallmark Lettings Ltd | Real estate | 2016 |
| Halo Media Ltd | Professional & scientific | 2018 |
| Halsall Holdings (North West) Limited | Financial services | 2022 |
| Halshaw Properties Ltd | Real estate | 2026 |
| Halstead Group Ltd | Financial services | 2025 |
| Halsteads Management Limited | Extraterritorial | 2018 |
| Halwest Barber Limited | Other services | 2025 |
| Hamble Brook Capital LLP | | 2016 |
| Hambleton (UK) Limited | Wholesale & retail | 2003 |
| Hambridge Property Group Limited | Real estate | 2021 |
| Hamilton (Preston) Limited | Administrative & support | 2022 |
| Hamilton Construction Preston Limited | Construction | 1997 |
| Hamilton Design Limited | Wholesale & retail | 2024 |
| Hamilton Douglas Legal Limited | Financial services | 2015 |
| Hamilton Redwood Ltd | Real estate | 2024 |
| Hammad & Co Ltd | Wholesale & retail | 2026 |
| Hammer Bricks Group Ltd | Construction | 2026 |
| Hammer Time Logistics Ltd | Transport & logistics | 2025 |
| Hammers Homes Ltd | Real estate | 2025 |
| Hammersley Joinery Contractors Limited | Construction | 2012 |
| Hammingbird Property Agency Limited | Real estate | 2020 |
| Hammocks Training Ltd | Education | 2017 |
| Hampel Limited | Professional & scientific | 2010 |
| Hampshire Cheese Company Ltd | Manufacturing | 2005 |
| Hampson Group Limited | Wholesale & retail | 2017 |
| Hampson's Garage Ltd | Wholesale & retail | 2003 |
| Hampstead Curry Company Ltd | Manufacturing | 2015 |
| Hamptons Investments Limited | Financial services | 1997 |
| Hamro Achar Ltd | Manufacturing | 2026 |
| Hamro Ghar Solutions Ltd | Real estate | 2026 |
| Hana Maysun Properties Limited | Real estate | 2024 |
| Hanah's Studio Ltd | Arts & recreation | 2023 |
| Hanana Homes Limited | Real estate | 2023 |
| Hand Roller Trucks Limited | Manufacturing | 2003 |