| Hampshire Dog Boarding Ltd | Other services | 2021 |
| Hampshire Dog Club Ltd | Education | 2021 |
| Hampshire Driveways and Patios Ltd | Construction | 2025 |
| Hampshire EPC Limited | Real estate | 2014 |
| Hampshire Events and Catering Limited | Hospitality | 2017 |
| Hampshire Executive Car Services Ltd | Transport & logistics | 2025 |
| Hampshire Executive Chauffeurs Limited | Transport & logistics | 2022 |
| Hampshire Executive Ltd | Transport & logistics | 2025 |
| Hampshire Executive Travel Limited | Transport & logistics | 2004 |
| Hampshire Fertility Limited | Real estate | 2007 |
| Hampshire Financial Limited | Financial services | 2011 |
| Hampshire Foods Limited | Wholesale & retail | 2012 |
| Hampshire Fractures Ltd | Health & social care | 2023 |
| Hampshire Garden Limited | Agriculture & fishing | 2011 |
| Hampshire Garden Rooms Ltd | Construction | 2020 |
| Hampshire Garden Supplies Limited | Administrative & support | 2009 |
| Hampshire Gems & Jewellers Limited | Wholesale & retail | 2025 |
| Hampshire Generators Ltd | Manufacturing | 2019 |
| Hampshire Ghost Kitchens Ltd | Hospitality | 2025 |
| Hampshire Glass and Window Solutions Limited | Construction | 2023 |
| Hampshire Green Roofing Limited | Construction | 2021 |
| Hampshire Group Ltd | Wholesale & retail | 2025 |
| Hampshire Hand and Shoulder Clinic Limited | Health & social care | 2020 |
| Hampshire Health and Safety Limited | Administrative & support | 2024 |
| Hampshire Health Clinic Ltd | Other services | 2021 |
| Hampshire Heat Solutions Ltd | Construction | 2026 |
| Hampshire Hedges Limited | Real estate | 2009 |
| Hampshire Heritage Landscapes Ltd | Construction | 2016 |
| Hampshire HIP and Knee Limited | Administrative & support | 2023 |
| Hampshire Holdings Limited | Financial services | 1998 |
| Hampshire Home Builders Ltd | Construction | 2025 |
| Hampshire Home Plumbing Ltd | Construction | 2025 |
| Hampshire Hose Management Services Limited | Professional & scientific | 2007 |
| Hampshire Hose Services Limited | Other services | 1984 |
| Hampshire Hotels Limited | Hospitality | 2007 |
| Hampshire HR Ltd | Administrative & support | 2022 |
| Hampshire Interiors Limited | Construction | 2006 |
| Hampshire Lease Company Limited | Real estate | 1894 |
| Hampshire Legal Solutions Ltd | Professional & scientific | 2009 |
| Hampshire Leisure Hotels Limited | Hospitality | 2011 |
| Hampshire Lifestylers Ltd | Other services | 2018 |
| Hampshire Live Ltd | Hospitality | 2025 |
| Hampshire Living Group Ltd | Construction | 2025 |
| Hampshire Marine Ltd | Other services | 2018 |
| Hampshire Marine Refits Ltd | Manufacturing | 2024 |
| Hampshire Marketing Limited | Information & communication | 2025 |
| Hampshire Medical Training Ltd | Health & social care | 2025 |
| Hampshire Mentoring Service Ltd | Health & social care | 2025 |
| Hampshire Metal Roofing Ltd | Construction | 2020 |
| Hampshire Mezzanine Floors Limited | Other services | 1986 |
| Hampshire Mind CIC | Health & social care | 2017 |
| Hampshire Mutual Property Society Limited | Real estate | 1940 |
| Hampshire Number Plates Ltd | Wholesale & retail | 2025 |
| Hampshire Oak Construction Ltd | Construction | 2013 |
| Hampshire PHV Rentals Ltd | Administrative & support | 2024 |
| Hampshire Physio & Consultants Ltd | Health & social care | 2015 |
| Hampshire Pipework Limited | Water & waste | 2023 |
| Hampshire Plumbing & GAS Ltd | Manufacturing | 2015 |
| Hampshire Property & Accommodation Services Ltd | Real estate | 2021 |
| Hampshire Property Developments (South) Ltd | Construction | 2025 |
| Hampshire Property Southern Ltd | Construction | 2024 |
| Hampshire Psychotherapy Limited | Health & social care | 2023 |
| Hampshire Resin Bound Ltd | Construction | 2017 |
| Hampshire Roofing & Guttering Ltd | Administrative & support | 2025 |
| Hampshire Roofing Solutions Ltd | Construction | 2020 |
| Hampshire Rustic Kitchens Ltd | Hospitality | 2025 |
| Hampshire Skip Bags Limited | Water & waste | 2015 |
| Hampshire Small Business Accountants Ltd | Professional & scientific | 2015 |
| Hampshire Sport & Leisure Holdings Limited | Arts & recreation | 2002 |
| Hampshire Stadium Limited | Arts & recreation | 2001 |
| Hampshire Taverns Limited | Hospitality | 2012 |
| Hampshire Tile Warehouse Limited | Wholesale & retail | 1975 |
| Hampshire Trailer and Roof Rack Centre Limited | Manufacturing | 2006 |
| Hampshire Tree & Landscapes Limited | Administrative & support | 2011 |
| Hampshire Vans Ltd | Wholesale & retail | 2020 |
| Hampshire Vending Ltd | Hospitality | 2025 |
| Hampshire Warehousing Limited | Professional & scientific | 1992 |
| Hampshire Wick Ltd | Wholesale & retail | 2026 |
| Hampshire Wines & Beers Limited | Manufacturing | 2011 |
| Hampton & Birchwood Property Investments & Developments Ltd | Real estate | 2016 |
| Hampton & Hall Limited | Administrative & support | 2012 |
| Hampton Construction and Refurbishments Ltd | Construction | 2021 |
| Hampton Dell Ltd | Information & communication | 2026 |
| Hampton Financial Services Ltd | Financial services | 2020 |
| Hampton Hideaways Ltd | Hospitality | 2024 |
| Hampton Park Garage (Southampton) Limited | Wholesale & retail | 2011 |
| Hampton Trust | Health & social care | 1996 |
| Hamsard 3727 Limited | Information & communication | 2023 |
| Hamstead Butcher Ltd | Wholesale & retail | 2019 |
| Hamtun Cars Ltd | Transport & logistics | 2026 |
| Hamtun Consultancy Limited | Professional & scientific | 2025 |
| Hamtun Homes Ltd | Construction | 2002 |
| Hamtun Ltd | Manufacturing | 2016 |
| Hamwic Education Trust | Education | 2017 |
| Hamwic Holdings Ltd | Real estate | 2021 |
| Hamwic Independent Estate Agents Ltd | Real estate | 2014 |
| Hamwic Projects Ltd | Wholesale & retail | 1993 |
| Hamwic Support Services Limited | Education | 2025 |
| Hamwic Wealth Management Limited | Financial services | 2015 |
| HAN ZHI UK - China Education Ltd | Education | 2016 |