| Hakiba Property Ltd | Real estate | 2018 |
| Halaba DEV Ltd. | Construction | 2024 |
| Halcyon SLB Limited | Wholesale & retail | 2023 |
| Halesi Limited | Hospitality | 2023 |
| Haley & Weller Ltd | Extraterritorial | 2019 |
| Hall & Wang Ltd | Real estate | 2023 |
| Hall Development Properties Limited | Real estate | 2014 |
| Hall Farm Group Limited | Agriculture & fishing | 2021 |
| Hall Farm Kirk Langley Management Company Limited | Extraterritorial | 2018 |
| Hall Farm Poultry Limited | Agriculture & fishing | 2021 |
| Hall Green Energy Research Limited | Administrative & support | 2010 |
| Hall Lane Riverbank Management Company Limited | Professional & scientific | 1997 |
| Hallam Electrics Ltd | Construction | 2009 |
| Hallam Whittle & Company Limited | Wholesale & retail | 1952 |
| Hallas Auto Electrical Services Ltd | Manufacturing | 2024 |
| Hallgate Contractors Limited | Construction | 2001 |
| Hallmark Education Limited | Administrative & support | 2015 |
| Hallsworth Holdings Limited | Other services | 2020 |
| Halo Effect Limited | Professional & scientific | 2001 |
| Halo Hitha Limited | Manufacturing | 2026 |
| Halo Homes (Midlands) Limited | Real estate | 2023 |
| Halo Lean Solutions Limited | Professional & scientific | 2015 |
| Halson Land Limited | Real estate | 2018 |
| Haluk Gurer Design Consultant Limited | Professional & scientific | 2002 |
| Halyjo Ltd | Real estate | 2025 |
| Hamad Amin Limited | Hospitality | 2026 |
| Hambleden Management Limited | Financial services | 1977 |
| Hambleton Homes Limited | Real estate | 2013 |
| Hambletonhr & Associates Limited | Administrative & support | 2014 |
| Hamdeecakes & Events Ltd | Manufacturing | 2025 |
| Hamgrid Limited | Professional & scientific | 2017 |
| Hammee Limited | Hospitality | 2025 |
| Hampson Waller Limited | Professional & scientific | 2019 |
| Hampsons Limited | Professional & scientific | 2008 |
| Hampton Hill Estates Limited | Real estate | 2025 |
| Hamrouche Ltd | Information & communication | 2019 |
| Hamza Builders 786 Ltd | Construction | 2024 |
| Hamza Driving Academy Ltd | Education | 2025 |
| Hamza Naeem Ltd | Wholesale & retail | 2024 |
| HAN KUN Law Limited | Professional & scientific | 2024 |
| Hana Solutions Limited | Information & communication | 2017 |
| Hanabniho Company | Health & social care | 2022 |
| Hand Over Care Ltd | Health & social care | 2020 |
| Hand Print and Design Limited | Manufacturing | 2005 |
| Handasa Engineering Ltd | Professional & scientific | 2025 |
| Handcrafted Ceremonies Ltd | Other services | 2024 |
| Handley Place (Locking) Management Company Limited | Households | 2020 |
| Handmecomerce Ltd | Wholesale & retail | 2024 |
| Hands OFF Properties Limited | Real estate | 2018 |
| Hands OFF Properties Residential Limited | Real estate | 2022 |
| Hands on Marine Limited | Professional & scientific | 2005 |
| Hands Properties Nottingham Limited | Real estate | 2020 |
| Handscomb Hospitality Limited | Hospitality | 2023 |
| Hanfar Limited | Real estate | 2017 |
| Hanger Consultancy Limited | Professional & scientific | 2023 |
| Hani Foods Ltd | Hospitality | 2025 |
| Hani Traders Ltd | Wholesale & retail | 2025 |
| Hanmer Springs Limited | Administrative & support | 2018 |
| Hannah Accessories Ltd | Wholesale & retail | 2024 |
| Hannah Elks Homes Limited | Professional & scientific | 2025 |
| Hannells Lettings Limited | Real estate | 2014 |
| Hannells Limited | Real estate | 2003 |
| Hanoor Limited | Health & social care | 2016 |
| Hanson & Hall, Rail Services Solutions Ltd | Transport & logistics | 2018 |
| Hanson Line Limited | Professional & scientific | 2000 |
| Hansons Auctioneers and Valuers Limited | Wholesale & retail | 2005 |
| Hanwell Construction Limited | Construction | 2024 |
| Haoula Ltd | Health & social care | 2019 |
| Happy Haart Ltd | Real estate | 2025 |
| Happy Hearts Learning Ltd | Education | 2025 |
| Happy Hearts Residential 26 Ltd | Real estate | 2026 |
| Happy House Derby Ltd | Hospitality | 2026 |
| Happy House JWL Ltd | Hospitality | 2025 |
| Happy Study EDU Ltd | Education | 2024 |
| Happy Valley Care Ltd | Health & social care | 2022 |
| Happyfeetuk (Derby) Limited | Health & social care | 2023 |
| Haral Accountants Ltd | Professional & scientific | 2026 |
| Haral Consultant Ltd | Professional & scientific | 2026 |
| Haral Security Ltd | Administrative & support | 2025 |
| Harasim Logistics Ltd | Transport & logistics | 2025 |
| Harbour Advisory Limited | Professional & scientific | 2025 |
| Harbour Mews Sennen Cove Limited | Real estate | 2001 |
| Harcharan Chandhoke Ltd | Information & communication | 2013 |
| Hard to Limited | Administrative & support | 2010 |
| Hardingham & Co Limited | Professional & scientific | 2003 |
| Hardings Property Ltd | Real estate | 2020 |
| Hardwick Windows Limited | Construction | 2018 |
| Hardy Barber Limited | Other services | 2020 |
| Hardy Group Holdings Limited | Financial services | 2025 |
| Harestock Capital Limited | Financial services | 2011 |
| Hargate House Management Company Limited | Professional & scientific | 1998 |
| Hari and the Gang Limited | Wholesale & retail | 2018 |
| Hari Clothing Ltd | Manufacturing | 2019 |
| Hari Hari Ltd | Hospitality | 2020 |
| Haris Properties (Derby) Limited | Construction | 2011 |
| Hark Investments Ltd | Real estate | 2022 |
| Harlequin Computer Systems Limited | Information & communication | 1998 |
| Harley Labs Ltd | Wholesale & retail | 2025 |
| Harlow One (Harrogate) Management Company Limited | Households | 2014 |
| Harman Engineering (UK) Limited | Manufacturing | 2014 |