| Heavenly Desserts Bournemouth Ltd | Wholesale & retail | 2023 |
| Heavenous Homes Limited | Real estate | 2025 |
| Heavy Energy Export Ltd | Wholesale & retail | 2026 |
| Hecs Consulting Limited | Professional & scientific | 2019 |
| Hector Homes Limited | Real estate | 2018 |
| HED Marketing Limited | Professional & scientific | 2023 |
| Hedayati Car Services Ltd | Wholesale & retail | 2025 |
| Hedge END Builders Ltd | Construction | 2012 |
| Hedge END Carpets and Flooring Ltd | Wholesale & retail | 2023 |
| Hedge END Gym Limited | Arts & recreation | 2024 |
| Hedge END Homes Ltd | Construction | 2022 |
| Hedge END Kebabs Pizza Ltd | Hospitality | 2022 |
| Hedge END Locksmiths Limited | Manufacturing | 2015 |
| Hedge END Post Office | | 1991 |
| Hedge END Solutions Ltd | Professional & scientific | 2023 |
| Hedge END Taxi Ltd | Transport & logistics | 2024 |
| Hedgepig Holdings Limited | Financial services | 2013 |
| Heer UK Express Ltd | Transport & logistics | 2025 |
| Hehe Limited | Administrative & support | 2025 |
| Heht Ltd | Transport & logistics | 2025 |
| Heia Group Ltd | Financial services | 2024 |
| Heights of Hampshire by P&R Ltd | Real estate | 2025 |
| Hein Global Limited | Transport & logistics | 2025 |
| Helen 111 Limited | Hospitality | 2024 |
| Helen Carlow Psychology Limited | Professional & scientific | 2024 |
| Helen Hunt Medical Aesthetics Ltd | Health & social care | 2021 |
| Helen Warren Maritime Yachts Ltd | Professional & scientific | 2025 |
| Helen Whitehouse Hairdressing Limited | Other services | 2012 |
| Helen's Teas Limited | Wholesale & retail | 2016 |
| Helena-Springfield Limited | Professional & scientific | 1975 |
| Heliguard Security Services Ltd | Administrative & support | 2021 |
| Helix Advisory Group Ltd | Professional & scientific | 2016 |
| Helix AV Limited | Transport & logistics | 2017 |
| Heller Group Ltd | Administrative & support | 2025 |
| Hellfighters Apparel Ltd | Wholesale & retail | 2024 |
| Helliwell Holdings Limited | Real estate | 2016 |
| Helliwell Limited | Wholesale & retail | 2005 |
| Hello Kitchen Limited | Hospitality | 2016 |
| Hello Kitchen Southampton Ltd | Hospitality | 2026 |
| Hello Soft Ltd | Energy | 2020 |
| Helpeur Ltd | Administrative & support | 2013 |
| Helping Change Happen Limited | Real estate | 2007 |
| Helping Hands Hampshire Ltd | Health & social care | 2026 |
| Helwit Ltd | Wholesale & retail | 2020 |
| Heman Cars Limited | Transport & logistics | 2015 |
| Hemel 6A Limited | Real estate | 2020 |
| Hemisphere Financial Holdings Ltd | Financial services | 2022 |
| Hemp Pollen Ltd | Agriculture & fishing | 2014 |
| HEN and Duckhurst Limited | Real estate | 2018 |
| Henderson Green Limited | Professional & scientific | 2015 |
| Hendriam Limited | Health & social care | 2022 |
| Henjal World Ltd | Wholesale & retail | 2025 |
| Henley Home Delivery and Takeaway Ltd | Hospitality | 2024 |
| Henley Homes Public Limited Company | Construction | 1999 |
| Henley Manor Limited | Agriculture & fishing | 1957 |
| Henley Restaurants Limited | Hospitality | 2004 |
| Henna Hatis Limited | Hospitality | 2019 |
| Hennessey Paints Limited | Construction | 2018 |
| Henny’S Global Service Limited | Health & social care | 2024 |
| Henshaw FOX Limited | Real estate | 2013 |
| Henshaw Inflatables Limited | Manufacturing | 1990 |
| Henstead Court Freehold Limited | Households | 2023 |
| Henstead Lane Management Company Limited | Real estate | 2005 |
| Hensting Ltd | Wholesale & retail | 2023 |
| Heny Ltd | Transport & logistics | 2017 |
| Hepburn BIO Care UK Limited | Wholesale & retail | 2005 |
| Hepburn Biomass Systems Ltd | Wholesale & retail | 2021 |
| Hephzibah Hair Limited | Extraterritorial | 2022 |
| Hepworth's Cafe Ltd | Hospitality | 2020 |
| Herat Ltd | Real estate | 2025 |
| Herbco Limited | Construction | 2017 |
| Herbert Alan Limited | Real estate | 2021 |
| Herbert Collins Estates Limited | Households | 2017 |
| Herbies Pizza (Southampton) Ltd | Hospitality | 2016 |
| Hercarthur Ltd | Transport & logistics | 2024 |
| Hercules Enterprises Limited | Wholesale & retail | 2018 |
| Here for Hearing Ltd | Health & social care | 2022 |
| Heritage Business Park Management Limited | Administrative & support | 2007 |
| Heritage HEN Huts Limited | Agriculture & fishing | 2024 |
| Heritage Park Management Company Limited | Households | 2002 |
| Heritage Park Management Company Phase 2 Limited | Households | 2002 |
| Heritage Point (Warsash) Management Company Limited | Households | 1998 |
| Heritage Property Investment Ltd | Real estate | 2022 |
| Heritage Property Southern Limited | Professional & scientific | 1999 |
| Heritage Regeneration Group Ltd | Financial services | 2025 |
| Heritage Security and Facilities Management Ltd | Administrative & support | 2020 |
| Hermitage Farm Limited | Agriculture & fishing | 1979 |
| Hero Container Limited | Transport & logistics | 2021 |
| Heron Fine Food Importers Ltd | Wholesale & retail | 2015 |
| Heron Print Ltd | Manufacturing | 2007 |
| Herons (Investments) Ltd | Real estate | 2018 |
| Heronwood Properties Limited | Construction | 1999 |
| Herriard Holdings Ltd | Financial services | 2018 |
| Hertford Offset Holdings Ltd | Manufacturing | 2024 |
| Hertford Shepherd Limited | Extraterritorial | 2024 |
| Hesling Maritime Associates Ltd | Professional & scientific | 2019 |
| Hesystems Ltd | Professional & scientific | 2022 |
| Hewicks Haulage Trustee Company Limited | Professional & scientific | 2023 |
| Hewraman Solid Builders Ltd | Construction | 2025 |
| Hewson Financial Management Limited | Financial services | 2021 |