| Greenpoint Building Services Ltd | Construction | 2019 |
| Greg Cummins Development Ltd | Construction | 2024 |
| H.P. Vastgoed 3 B.V. | | 2021 |
| Hamble Cleaning Limited | Administrative & support | 2014 |
| Hampshire Barbers Ltd | Other services | 2024 |
| Hampshire Framing Stockbridge Limited | Wholesale & retail | 2016 |
| Hampshire House & Homes Limited | Construction | 1995 |
| Hanson Advisory Ltd | Professional & scientific | 2016 |
| Harmaral Limited | Professional & scientific | 2016 |
| Harry Masters Cider & Brandy Ltd | Agriculture & fishing | 2018 |
| Haskins Marine Limited | Manufacturing | 2005 |
| Hatch Capital Limited | Administrative & support | 2020 |
| Hatwood Surveying Ltd | Professional & scientific | 2019 |
| Haywoods Residential Holdings Limited | Financial services | 2021 |
| Haywoods Sterling Assets Limited | Real estate | 2020 |
| Hazell Minshall Accountants Limited | Professional & scientific | 2022 |
| HBM Hair Limited | Other services | 2017 |
| HBS Fuels and GAS Supplies Limited | Wholesale & retail | 2012 |
| HDN Services Limited | Professional & scientific | 2020 |
| Health Research Consulting Ltd | Health & social care | 2019 |
| Henge Care Ltd | Professional & scientific | 2011 |
| Henge Enterprises Ltd | Professional & scientific | 2025 |
| Herbert & Ellison Upholstery Ltd | Manufacturing | 2015 |
| Heytesland Limited | Real estate | 2020 |
| Hibberd Construction Limited | Construction | 2001 |
| Historic Army Aircraft Flight Trustee Limited | Arts & recreation | 2015 |
| HML Consulting Services Limited | Professional & scientific | 2019 |
| Holdsworth Services Limited | Financial services | 2018 |
| Homagra Properties Limited | Real estate | 2018 |
| Honey DOT Designs Limited | Wholesale & retail | 2026 |
| Hoplands Estate Limited | Real estate | 1991 |
| Hoplands FB Limited | Households | 2023 |
| Hornzee Construction Limited | Real estate | 2004 |
| Horsebridge Psychiatric Ltd | Health & social care | 2024 |
| Hostmead Basingstoke Limited | Real estate | 2000 |
| Houghton Community Black BEE Project CIC | Agriculture & fishing | 2020 |
| Houghton Farm Management Company Limited | Households | 2020 |
| Houghton Lodge Limited | Arts & recreation | 2018 |
| Hoxia Ltd | Real estate | 2022 |
| Hughes IT Consulting Ltd | Information & communication | 2010 |
| I V Solutions Limited | Professional & scientific | 2002 |
| Icthus Electrical Limited | Construction | 2013 |
| Icthus Event Solutions Limited | Arts & recreation | 2013 |
| Iiicorvus Ltd | Wholesale & retail | 2025 |
| Impact Group Holdings Limited | Professional & scientific | 2009 |
| Innotota Group Ltd | Wholesale & retail | 2022 |
| Innovance Digital Limited | Wholesale & retail | 2023 |
| INV35T Ltd | Real estate | 2019 |
| Island Environmental Hygiene Ltd | Water & waste | 2001 |
| Ittv Limited | Information & communication | 2009 |
| J&Ps Solutions Limited | Professional & scientific | 2024 |
| James Barnes Consulting Limited | Extraterritorial | 2023 |
| James Stewart Property Holdings Ltd | Real estate | 2024 |
| Jamesplumb Ltd | Arts & recreation | 2011 |
| Jason Cousins Hair Salon Limited | Professional & scientific | 2001 |
| JDB Services Limited | Transport & logistics | 2016 |
| JET Tailors Ltd. | Transport & logistics | 2013 |
| Joeybean Limited | Professional & scientific | 2024 |
| John O'Gaunt Partnership LLP | | 2017 |
| John Sawyer Limited | Information & communication | 2017 |
| JON Joseph Kitchens Ltd | Construction | 2014 |
| Jones Badminton Academy Limited | Education | 2025 |
| Julian Chichester Limited | Real estate | 2007 |
| Just-In Automotive Holdings Limited | Financial services | 2025 |
| K S Thatchers Ltd | Construction | 2016 |
| Kamba Stone Limited | Real estate | 2023 |
| Kamthia Brooking Ltd | Wholesale & retail | 2026 |
| KAP CEE Limited | Administrative & support | 2025 |
| Karen Dalmeny Antiques Limited | Wholesale & retail | 2015 |
| Katie Williams Ltd | Other services | 2011 |
| Kennerley Farms Ltd | Agriculture & fishing | 2018 |
| Kinnersley Group Ltd | Administrative & support | 2021 |
| Klaros Ltd | Financial services | 2025 |
| KNL Holdings Limited | Financial services | 2016 |
| Konstanta Ltd | Professional & scientific | 2023 |
| Korusys Limited | Information & communication | 2007 |
| L D C Management Limited | Households | 2001 |
| Laeryn Limited | Information & communication | 2022 |
| Landacre Trading Limited | Professional & scientific | 2006 |
| Lardicake Ltd | Hospitality | 2025 |
| Larkwhistle Fabrics Limited | Wholesale & retail | 2002 |
| Latimer Renovations Ltd | Construction | 2012 |
| Layzbeats Ltd | Information & communication | 2025 |
| LEA Bear Limited | Real estate | 2015 |
| Leatham Tobacco Limited | Manufacturing | 2003 |
| Leckford Courtyard Ltd | Manufacturing | 2021 |
| Legible Ltd | Information & communication | 2026 |
| Lewis & Penrose Renovation Ltd | Real estate | 2024 |
| Lionmere Limited | Construction | 1986 |
| Local Zero (Hampshire) Limited | Water & waste | 2020 |
| Locca Design & Development Ltd | Extraterritorial | 2006 |
| Locca Distribution Ltd | Extraterritorial | 2006 |
| Locca Tech Limited | Extraterritorial | 2003 |
| London Green Belt Council CIC | Professional & scientific | 2022 |
| London Stamp Exchange Limited | Wholesale & retail | 2004 |
| Longcamp Properties Limited | Real estate | 2020 |
| Longcamp Services Ltd | Professional & scientific | 2023 |
| Longstock Consulting Ltd | Professional & scientific | 2018 |
| Lothlorien Alchemy Limited | Financial services | 2025 |
| Lothlorien Holdings Limited | Financial services | 2025 |