| Hebe Brown Surveying Services Limited | Professional & scientific | 2023 |
| Heck Capital Ltd | Hospitality | 2026 |
| Heck Leisure Ltd | Hospitality | 2022 |
| Hedfan Limited | Professional & scientific | 2017 |
| Helen Care Limited | Health & social care | 2014 |
| Hello Georgeous Ltd | Wholesale & retail | 2024 |
| Hello TUK TUK Ltd | Professional & scientific | 2017 |
| Help App Limited | Information & communication | 2023 |
| Helping Dogs and Cats CIC | Agriculture & fishing | 2022 |
| Helping Heroes Ltd | Administrative & support | 2016 |
| Hemmersbach UK Ltd | Information & communication | 2008 |
| Henderton Group Ltd | Construction | 2024 |
| Henley Symphony Orchestra Productions Limited | Arts & recreation | 2019 |
| Henly Games Limited | Professional & scientific | 2026 |
| Hepro Care Limited | Wholesale & retail | 2026 |
| Herd Hire Basingstoke Limited | Administrative & support | 2020 |
| Heriko Limited | Transport & logistics | 2024 |
| Heritage Training Solutions Ltd | Transport & logistics | 2025 |
| Heron F Belize Limited | Health & social care | 2017 |
| Herondene Management Company Limited | Households | 1996 |
| Herriard BIO Power Limited | Energy | 2013 |
| Herriard Recoveries Ltd | Administrative & support | 2006 |
| Herriard Village Charity | Arts & recreation | 1999 |
| Herringbone Brickwork Ltd | Construction | 2023 |
| Hesa Limited | Professional & scientific | 2005 |
| HEX Creatives Digital Limited | Information & communication | 2017 |
| Heychbee Limited | Wholesale & retail | 2017 |
| Heysocialfish Limited | Professional & scientific | 2026 |
| Heythorpe Research and Media Limited | Information & communication | 2009 |
| Heyton Enterprises Ltd | Administrative & support | 2010 |
| HFP Music Limited | Information & communication | 2014 |
| HFP Verge Ltd | Information & communication | 2023 |
| HI Tech Systems Ltd. | Manufacturing | 1987 |
| Hi-Tech Press Electricians Ltd | Manufacturing | 2004 |
| Hidd Group Ltd | Professional & scientific | 2017 |
| Hidden Nature Events Ltd | Education | 2024 |
| Hide Away Homes Ltd | Real estate | 2024 |
| Hideout Works Ltd | Financial services | 2025 |
| High Clean Building Maintenance Ltd | Administrative & support | 2014 |
| High Grange Devon Limited | Hospitality | 2019 |
| High Talent Trading Ltd | Wholesale & retail | 2019 |
| Highly Favoured Woman Inc Ltd | Education | 2023 |
| Hikare UK Limited | Wholesale & retail | 2025 |
| Hilltop Beacon Routing Solutions Ltd | Transport & logistics | 2025 |
| Himal and SON Limited | Real estate | 2024 |
| Himalayan Innovation Limited | Information & communication | 2023 |
| Himami Ltd | Wholesale & retail | 2022 |
| Hireserve Limited | Information & communication | 1997 |
| Hisaab Kitaab Limited | Professional & scientific | 2024 |
| HIT Zero Apparel Ltd | Wholesale & retail | 2025 |
| HK Consultant Services Ltd | Administrative & support | 2024 |
| HL Performance and Wellbeing Ltd | Other services | 2025 |
| HLN Property Group Limited | Real estate | 2024 |
| Hlsa Financial Services Ltd | Financial services | 2017 |
| Hlsa Real Estate Limited | Real estate | 2022 |
| HM & KC Enterprise Ltd | Construction | 2025 |
| HMM Holdco Limited | Financial services | 2018 |
| HNM Consultancy Limited | Professional & scientific | 2021 |
| HO WAH 2018 Ltd | Hospitality | 2018 |
| Hocus Focus Ltd | Information & communication | 2025 |
| Hoddington Inns Limited | Hospitality | 2010 |
| Hodds Farm Events Ltd | Arts & recreation | 2025 |
| Hogz Catering Company Limited | Hospitality | 2023 |
| Hogz Food Company Limited | Hospitality | 2020 |
| Holistic Fusion Care Limited | Administrative & support | 2024 |
| Holla Cleaning Ltd | Households | 2026 |
| Hollis Hockley LLP | | 2019 |
| Holloway Design & Communications Limited | Professional & scientific | 2015 |
| Holly Hands Limited | Health & social care | 2020 |
| Hollys Boarding Ltd | Hospitality | 2019 |
| Holmbrook Properties Limited | Real estate | 2026 |
| Holme Hill Management Company Limited | Households | 2024 |
| Holmes & Clarke Limited | Real estate | 2015 |
| Holophase Ltd | Wholesale & retail | 2025 |
| Holtzbrinck Investment Holdings Limited | Financial services | 2011 |
| Holtzbrinck Investment Limited | Financial services | 2014 |
| Holtzbrinck Publishing Investments Limited | Financial services | 2014 |
| Holtzbrinck Science & Technology Limited | Financial services | 2010 |
| Holzbari Ltd | Arts & recreation | 2026 |
| Home Cinema Design Limited | Construction | 2020 |
| Home Counties Heat Pumps Ltd | Wholesale & retail | 2021 |
| Home ED Hub Ltd | Education | 2016 |
| Home Education Tracker Ltd | Education | 2023 |
| Home Farm (Hackwood Park) Management Limited | Households | 2003 |
| Home Rental Solutions Ltd | Real estate | 2025 |
| Home Run Construction Ltd | Construction | 2025 |
| Home-Start North West Hampshire Trading AS Home-Start Basingstoke and Deane Ltd. | Health & social care | 2005 |
| Homedec Plumbing and Decorating Ltd | Water & waste | 2016 |
| Homegenex Ltd | Wholesale & retail | 2023 |
| Homes for West Berkshire LLP | | 2019 |
| Homesmart Eco Installations Ltd | Construction | 2022 |
| Homesmart Installations Home Improvements Limited | Construction | 2019 |
| Homesmart Installations Limited | Construction | 2018 |
| Homesmart Solutions Ltd | Construction | 2025 |
| Homestead Support Services Limited | Hospitality | 2015 |
| Honeybee Software Ltd | Information & communication | 2021 |
| Honeysuckle Interiors Limited | Wholesale & retail | 2002 |
| Hook Business Stays Limited | Hospitality | 2025 |
| Hook Commercial Solutions Limited | Professional & scientific | 2011 |
| Hook Stays Limited | Hospitality | 2022 |