| HBB Bridging Loans Limited | Financial services | 2013 |
| Hbsk Property Limited | Real estate | 2023 |
| HCE Automotive Ltd | Wholesale & retail | 2024 |
| HD CNC Ltd | Manufacturing | 2023 |
| HD Design and Property Limited | Construction | 2024 |
| Headlands Property Management Limited | Construction | 2019 |
| Health Connect Recruitment Ltd | Administrative & support | 2024 |
| Health IS Wealth Consulting Limited | Health & social care | 2021 |
| Healthy Hauliers Limited | Administrative & support | 2021 |
| Heart to Soul Sanctuary Ltd | Health & social care | 2021 |
| Heart Warming Care Services Limited | Health & social care | 2021 |
| Hearthcote Management Company Limited | Administrative & support | 2005 |
| Heat Food and Drink Limited | Manufacturing | 2010 |
| Heather Jane Devine Limited | Extraterritorial | 2021 |
| Heffer Group Limited | Hospitality | 2024 |
| Helen Ritzema Limited | Health & social care | 2019 |
| Hemen 2 Car Care Ltd | Other services | 2025 |
| HEN HUT Ltd | Hospitality | 2018 |
| Henhurst Farming Limited | Wholesale & retail | 2022 |
| Henry & Co Legal Services Ltd | Professional & scientific | 2026 |
| Henry David Learning Ltd | Education | 2019 |
| Hepton Properties Limited | Real estate | 2024 |
| Hero Style Ltd | Other services | 2024 |
| Herrington Hall Ltd | Real estate | 2022 |
| HEX Power Services Limited | Construction | 2014 |
| Hexagon Leasing Limited | Wholesale & retail | 2001 |
| Hexagon Self Drive Hire Limited | Extraterritorial | 2017 |
| Heywire Limited | Information & communication | 1999 |
| HFC Pizza Ltd | Hospitality | 2025 |
| HFE Signs Limited | Manufacturing | 2006 |
| HH Private Limited | Wholesale & retail | 2026 |
| HI Cars Ltd | Transport & logistics | 2020 |
| Hi-Range Ltd | Manufacturing | 2001 |
| Hidden Roots CIC | Information & communication | 2026 |
| High & LOW Voltage Engineering Limited | Construction | 2010 |
| High Altitude Pizza Co. Ltd | Hospitality | 2026 |
| High Line Builders and Maintenance Ltd | Construction | 2020 |
| High Octane Digital Ltd | Professional & scientific | 2026 |
| High Voltage Windings Limited | Professional & scientific | 2024 |
| Highfield Estates (Blackpool) Limited | Real estate | 2007 |
| Hill Carpentry & Joinery Ltd | Construction | 2021 |
| Hilton Contemporary Flooring Limited | Construction | 2004 |
| Hipooo Ltd | Construction | 2026 |
| Hiscox and SON Ltd | Wholesale & retail | 2023 |
| HLA Solutions Limited | Information & communication | 2016 |
| HLM Development Ltd | Real estate | 2025 |
| Hlæfdige Ltd | Manufacturing | 2023 |
| HM Hydraulic Ltd | Other services | 2023 |
| HMO Framework Ltd | Education | 2025 |
| HMW Contracting Limited | Transport & logistics | 2015 |
| Hodgetts Construction Limited | Other services | 2021 |
| Hodgson & Clayton Limited | Construction | 2003 |
| Holdii Limited | Wholesale & retail | 2025 |
| Holford Cars Ltd | Wholesale & retail | 2020 |
| Holland and Hausberger UK Ltd | Professional & scientific | 2023 |
| Holland Sports Club Limited | Arts & recreation | 2016 |
| Hollier Group Limited | Administrative & support | 2025 |
| Hollier Holdings Limited | Information & communication | 2022 |
| Holly Bush Close Residents Management Company Limited | Households | 2021 |
| Holly Lodge Home Ltd | Health & social care | 2016 |
| Hollywood Amusements Limited | Hospitality | 2024 |
| Hollywood Nails Burton 128 Ltd | Other services | 2025 |
| Holt and Holt Investments Limited | Real estate | 2015 |
| Homac Truck Hire Limited | Real estate | 1973 |
| Home by AV Ltd | Wholesale & retail | 2023 |
| Home Farm Alrewas Management Company Limited | Households | 1997 |
| Home Legacy Limited | Wholesale & retail | 2025 |
| Homecroft Investments Limited | Households | 2025 |
| Homefit Properties Ltd | Real estate | 2022 |
| Homespace Installations Limited | Manufacturing | 2014 |
| Honey & ME Ltd | Manufacturing | 2026 |
| Hope 4 U Foundation | Other services | 2026 |
| Hope 4 U Limited | Administrative & support | 2020 |
| Hope Clothing Ltd | Wholesale & retail | 2025 |
| Hopen Developments Ltd | Construction | 2008 |
| Horizon Cars Southampton Limited | Transport & logistics | 2026 |
| Horse Ambulance Service Ltd | Agriculture & fishing | 2001 |
| Hot Property (Midlands) Ltd | Real estate | 2024 |
| Hotstave Limited | Arts & recreation | 2002 |
| HOU & HE Ltd | Hospitality | 2024 |
| House Buyer Bureau Limited | Extraterritorial | 2014 |
| House of Degenerate Limited | Financial services | 2025 |
| House of Nails Beauty Salon Limited | Other services | 2024 |
| House Renos Ltd | Construction | 2024 |
| HOW to Build a Brand Global Ltd | Extraterritorial | 2018 |
| Howard Aviation Consultants Limited | Professional & scientific | 2019 |
| Howards Commercial Properties Ltd | Real estate | 2024 |
| Howards Estates Ltd | Real estate | 2022 |
| Howards Residential Properties Ltd | Real estate | 2025 |
| Howards Way Management Company Limited | Real estate | 2009 |
| HQ Pharma Ltd | Health & social care | 2024 |
| HRH Properties and Rennovations Ltd | Real estate | 2023 |
| HRM Global Trading Ltd | Water & waste | 2024 |
| HRS Shop Ltd | Wholesale & retail | 2025 |
| HS Vape Limited | Wholesale & retail | 2017 |
| HSB Food Ltd | Hospitality | 2026 |
| HSL H&E Ltd | Hospitality | 2020 |
| HSN Connect Ltd | Information & communication | 2024 |
| HU Education Limited | Education | 2025 |
| Hughes Investments Ltd | Financial services | 2014 |