| Haji CC Ltd | Wholesale & retail | 2017 |
| Haji Cloth House Ltd | Manufacturing | 2015 |
| Haji Superstore (Rochdale) Limited | Wholesale & retail | 2016 |
| Haji Superstore Limited | Wholesale & retail | 2006 |
| Haji Tours MCR Ltd | Administrative & support | 2002 |
| Haji's Autos Ltd | Manufacturing | 2014 |
| Hajime Ippo Limited | Administrative & support | 2023 |
| Hajiq Ltd. | Wholesale & retail | 2024 |
| Hajkar Ltd | Wholesale & retail | 2026 |
| Hajura Enterprises Limited | Health & social care | 2015 |
| Hajuri Group Ltd | Transport & logistics | 2025 |
| Hajveri PVT Limited | Wholesale & retail | 2020 |
| Hajveri Trading Ltd | Wholesale & retail | 2019 |
| HAK GAS Ltd | Administrative & support | 2024 |
| HAK Haulage Limited | Transport & logistics | 2025 |
| HAK Healthcare Ltd | Wholesale & retail | 2014 |
| HAK Investment Holdings Limited | Financial services | 2025 |
| HAK Investment Property Limited | Real estate | 2024 |
| HAK Management Limited | Real estate | 2012 |
| Hakam Traders Ltd | Transport & logistics | 2026 |
| Hakim Film Co Ltd | Information & communication | 2025 |
| Hakimi Billard Ltd | Professional & scientific | 2025 |
| Hakkapo Ltd | Hospitality | 2023 |
| Hakobune Ltd | Real estate | 2024 |
| Hakol Ltd | Other services | 2019 |
| Hakresponsegroup Ltd | Administrative & support | 2025 |
| Hakston Limited | Administrative & support | 2025 |
| Hala&Amal Ltd | Wholesale & retail | 2025 |
| Halab Ltd | Wholesale & retail | 2021 |
| Halab Solutions Limited | Information & communication | 2016 |
| Halabi Property Limited | Real estate | 2024 |
| Halabja Foods Limited | Hospitality | 2025 |
| Halal & Fresh (Retail) Ltd | Wholesale & retail | 2015 |
| Halal & Fresh Ltd | Wholesale & retail | 2013 |
| Halal Asset Legacy Ltd | Real estate | 2025 |
| Halal Dining Ltd | Administrative & support | 2019 |
| Halal Food Productions Ltd | Information & communication | 2015 |
| Halal Meat Mart Ltd | Wholesale & retail | 2023 |
| Halal Meat Shop Ltd | Wholesale & retail | 2024 |
| Halal Pharmaceuticals Limited | Extraterritorial | 2012 |
| Halal Steak Restaurants Limited | Hospitality | 2019 |
| Halal UK Gems Ltd | Professional & scientific | 2025 |
| Halau Ltd | Real estate | 2024 |
| Halcy Innovation Dynamics Ltd | Information & communication | 2025 |
| Halcyon Care Services Ltd | Health & social care | 2023 |
| Halcyon Interactive Ltd | Information & communication | 2024 |
| Halcyon Migrate Limited | Information & communication | 2021 |
| Halcyon Signs Ltd | Manufacturing | 2003 |
| Haldane Robertson Ltd | Information & communication | 2016 |
| Haldi Rose Balti Ltd | Hospitality | 2018 |
| Haldon Limited | Real estate | 1994 |
| Hale 215 Ltd | Transport & logistics | 2021 |
| Hale and Country Limited | Administrative & support | 2025 |
| Hale Asset Management Ltd | Financial services | 2018 |
| Hale Baba Limited | Other services | 2017 |
| Hale Barns Investments Limited | Wholesale & retail | 2020 |
| Hale Communications (Europe) Limited | Information & communication | 1999 |
| Hale Conference & Banqueting Limited | Hospitality | 2021 |
| Hale Construction Group Limited | Construction | 2025 |
| Hale Estates Limited | Construction | 2005 |
| Hale Harmony Outreach Services Ltd | Health & social care | 2024 |
| Hale Living Ltd | Construction | 2018 |
| Hale Storage Limited | Real estate | 2022 |
| Hale Theatre School Ltd | Education | 2021 |
| Halebrook Limited | Financial services | 2025 |
| Halecrest Construction Ltd. | Construction | 2009 |
| Halecrest Motors Limited | Wholesale & retail | 2026 |
| Haleem and Co MCR Limited | Wholesale & retail | 2022 |
| Haleemaali Ltd | Wholesale & retail | 2025 |
| Halertra International Ltd | Administrative & support | 2023 |
| Half Day Floating Technology Co., Ltd | Wholesale & retail | 2025 |
| Half Dozen Other Bakery Ltd | Manufacturing | 2019 |
| Half LIT Studios Ltd. | Professional & scientific | 2023 |
| Halfday Productions Ltd | Arts & recreation | 2025 |
| Halfmoonaitech Ltd | Information & communication | 2026 |
| Halfoods Ltd | Hospitality | 2025 |
| Halience Analytics Limited | Information & communication | 2026 |
| Halifax Hall Nominees Ltd | Extraterritorial | 2017 |
| Halifax Spice Limited | Hospitality | 2018 |
| Haliogen Power Limited | Manufacturing | 2023 |
| Halite Energy Group Limited | Professional & scientific | 2001 |
| Halite Global Ltd | Mining & quarrying | 2013 |
| Halite Holdings Limited | Manufacturing | 2022 |
| Halite Investments | Financial services | 2025 |
| Halite IP Holdings Limited | Administrative & support | 2023 |
| Halkka Home Ltd | Wholesale & retail | 2024 |
| Halkyn Estates Limited | Hospitality | 2021 |
| Hall & Hague Limited | | 1960 |
| Hall & Parker Ltd | Extraterritorial | 2023 |
| Hall Brothers (Whitefield) Limited | Manufacturing | 1912 |
| Hall Brown Limited | Professional & scientific | 2016 |
| Hall Close Management Company Limited | Households | 2025 |
| Hall Developers Ltd | Information & communication | 2024 |
| Hall Property Ltd | Real estate | 2016 |
| Hall Surfacing and Civils Limited | Construction | 2026 |
| Hallah Ltd | Real estate | 2026 |
| Hallbrent Ltd | Wholesale & retail | 2014 |
| Hallbridge Estates Ltd | Financial services | 2011 |
| Hallco 1071 Limited Partnership | | 2004 |
| Hallco 479 Limited | Professional & scientific | 2000 |