| HM Construction Ltd | Construction | 2025 |
| HMA Electrical Services Limited | Energy | 2013 |
| Hmam Properties Limited | Real estate | 2019 |
| HMJ Enterprises Ltd | Wholesale & retail | 2025 |
| HMO Lettings & Property Management Ltd | Real estate | 2022 |
| HMO Management London Ltd | Real estate | 2019 |
| HMR Vision Ltd | Professional & scientific | 2019 |
| HMT Property Holdings Ltd | Real estate | 2026 |
| HMT Solutions Group Limited | Real estate | 2026 |
| HNA Consultancy Ltd | Professional & scientific | 2024 |
| HNB Real Assets Desford Ltd | Financial services | 2023 |
| Hodan IT Limited | Information & communication | 2016 |
| Hodgkin & Hasyn Construction Ltd | Construction | 2025 |
| Hodson Build Limited | Construction | 2017 |
| Hof&Hoff Ltd | Hospitality | 2024 |
| Hoff Media Group Ltd | Information & communication | 2024 |
| Hoft Consulting Ltd | Administrative & support | 2015 |
| Hogson Limited | Health & social care | 2017 |
| Holiday Homes International Limited | Administrative & support | 2005 |
| Holistic Commerce Ltd | Wholesale & retail | 2024 |
| Hollihead Hospitality Limited | Hospitality | 2023 |
| Hollister Property Limited | Real estate | 2017 |
| Holly Coachworks Limited | Wholesale & retail | 2002 |
| Holm Bay Ltd | Wholesale & retail | 2022 |
| Holmer Green Chilli Ltd | Hospitality | 2018 |
| Holmer Green Garage Ltd | Wholesale & retail | 2019 |
| Holmer Green Property Co.Limited | Real estate | 1964 |
| Holmer Green Senior School | Education | 2011 |
| Holmer Green Sports Association | Arts & recreation | 1984 |
| Holmes Insurance Brokers Limited | Financial services | 2015 |
| Holmleigh Catering Limited | Hospitality | 2010 |
| Holmsdale Property Ltd | Hospitality | 2022 |
| Holos Holistic Training Ltd | Professional & scientific | 2025 |
| Holyoake C.I.R. Ltd | Professional & scientific | 2011 |
| Home & Beyond Companions CIC | Health & social care | 2026 |
| Home Counties Epc's Ltd | Professional & scientific | 2020 |
| Home Decorating, Improvements & Maintenance Ltd | Construction | 2021 |
| Home Education UK Limited | Education | 2021 |
| Home From Home Hosts Ltd | Real estate | 2025 |
| Home Improvement Garage Doors Ltd | Wholesale & retail | 2014 |
| Home Move Cleaning Services Limited | Administrative & support | 2023 |
| Home Preservation HW Limited | Construction | 2010 |
| Home Roots Catering Ltd | Hospitality | 2022 |
| Home Smart Property Services Limited | Construction | 1998 |
| Home to Home Builders Ltd | Construction | 2023 |
| Home With Shan Ltd | Information & communication | 2021 |
| Homecare Gurus Ltd. | Health & social care | 2020 |
| Homelio UK Limited | Hospitality | 2025 |
| Homemade Flavours Ltd | Hospitality | 2024 |
| Homemaker Management Residents Association Limited | Households | 2005 |
| Homepro Financial Services Limited | Financial services | 2019 |
| Homes NOT Houses Limited | Construction | 2016 |
| Homes Under the Harrilds Ltd | Real estate | 2024 |
| Hone Furniture Limited | Manufacturing | 2024 |
| Honeybee Collective Ltd | Wholesale & retail | 2020 |
| Honor and Dignity Ltd | Health & social care | 2018 |
| Hope and Kind Creative CIC | Arts & recreation | 2026 |
| Hope Therapy & Counselling Services Limited | Health & social care | 2019 |
| Hopebridge Supported Living Limited | Health & social care | 2025 |
| Hopeworld Ltd | Wholesale & retail | 2025 |
| Hopkins & Co Construction Limited | Construction | 2021 |
| Hopkinson Engineering Consultants Limited | Construction | 1996 |
| Horizon Ventures Limited | Water & waste | 2004 |
| Horizont Holding & Co Limited | Real estate | 2023 |
| Horm Limited | Financial services | 2018 |
| Horna & Horna Limited | Wholesale & retail | 2012 |
| Hornet Boxing Ltd | Manufacturing | 2024 |
| Hortium Limited | Information & communication | 2016 |
| Hosch Projects Ltd | Manufacturing | 2023 |
| Hospital Maintenance Team Limited | Administrative & support | 2026 |
| Hot Volts Consulting Ltd | Information & communication | 2020 |
| Hound Dog Creatives Limited | Administrative & support | 2023 |
| Hounslows Ltd | Construction | 2015 |
| Hour Glass PUB Limited | Hospitality | 2025 |
| House and Maintenance Services Ltd | Construction | 2024 |
| House of Happy Life Ltd | Manufacturing | 2021 |
| House of Maharaja Ltd | Administrative & support | 2025 |
| House of Party Planning Limited | Hospitality | 2018 |
| House of Rahman Ltd | Real estate | 2025 |
| Housecat Studios Ltd | Information & communication | 2023 |
| Housesit Match Limited | Hospitality | 2011 |
| Hovis Group Ltd | Financial services | 2020 |
| Hovis Holdings Limited | Professional & scientific | 2014 |
| Hovis Investments Ltd | Financial services | 2020 |
| Hovis Limited | Manufacturing | 2014 |
| How's the Brew? Ltd | Information & communication | 2026 |
| Howard 4 Consultancy Limited | Professional & scientific | 2022 |
| Howard Place Film Limited | Information & communication | 2026 |
| Howard Property Holdings Limited | Financial services | 2015 |
| HP 27 Limited | Professional & scientific | 2006 |
| HP Plumbing Heating & GAS Ltd | Construction | 2017 |
| HP Transport Solutions Limited | Transport & logistics | 2021 |
| HP11 Barbers Ltd | Other services | 2023 |
| HP11 NO 126 Ltd | Real estate | 2026 |
| HQ Pharma 2 Limited | Health & social care | 2025 |
| HR Autohaus Limited | Transport & logistics | 2022 |
| HR Gold Limited | Construction | 2013 |
| HR Labs Nutrition Limited | Wholesale & retail | 2023 |
| HR People and Development Limited | Real estate | 2025 |
| HRH Autos Ltd | Wholesale & retail | 2023 |