| Harper Bennett Ltd | Professional & scientific | 2022 |
| Harper House Limited | Health & social care | 2006 |
| Harringtons Signature Group Ltd | Transport & logistics | 2026 |
| Harrison Products Co Limited | Manufacturing | 2006 |
| Harrison Roberts Int'L Ltd | Wholesale & retail | 2011 |
| Harvard Lewis Associates Limited | Professional & scientific | 2014 |
| Harvs Pilgrim Pubs Ltd | Hospitality | 2020 |
| Hattkane Properties Limited | Other services | 2007 |
| Hawkes Garden Services HGS Ltd | Administrative & support | 2022 |
| Hawkes Piece Property Management Company Limited | Households | 2009 |
| HAY Barn FI Ltd | Real estate | 2025 |
| Haycock Environmental Consultants Limited | Professional & scientific | 2010 |
| HB 87 Limited | Transport & logistics | 2025 |
| HCK Plumbing & Heating Limited | Construction | 2007 |
| Health Freedom Food Ltd | Manufacturing | 2024 |
| Hear Kinetix Limited | Wholesale & retail | 2023 |
| Heath Gardens Ltd | Administrative & support | 2025 |
| Heath Park Management Limited | Real estate | 2015 |
| Heathfield Holding Company Limited | Construction | 2014 |
| Heelis Consulting Limited | Professional & scientific | 2007 |
| Height Safety Solutions Ltd | Construction | 2016 |
| Helena Rubinstein Ltd | Manufacturing | 2026 |
| Helix Apps Ltd | Information & communication | 2019 |
| Help 'N Care Cleaning and Care Solutions Ltd | Administrative & support | 2024 |
| Henley Court (Warndon) Management Company (1) Limited | Households | 1992 |
| Henley Court (Warndon) Management Company (2) Limited | Households | 1992 |
| Henry Blake Hardware Limited | Extraterritorial | 2015 |
| Henry Lang Ltd | Construction | 2019 |
| Henson Group Limited | Hospitality | 2023 |
| Henson Plant Hire Limited | Construction | 2016 |
| Hentony Ltd | Manufacturing | 2021 |
| HER Hair Clinic Limited | Extraterritorial | 2015 |
| Herbies Cafe Ltd | Hospitality | 2025 |
| Herbs ZR Limited | Hospitality | 2017 |
| HGA Event Partners Limited | Hospitality | 2024 |
| Hiflights Ltd | Administrative & support | 2023 |
| High Park Real Estate Limited | Real estate | 2015 |
| High ST Mini Market Ltd | Wholesale & retail | 2025 |
| Highland Finance Limited | Financial services | 2012 |
| Hilite-Services Limited | Construction | 2012 |
| Hill & Vale Sporting Ltd | Arts & recreation | 2018 |
| Hillcrest Management Services (Evesham) Limited | Households | 2006 |
| Hillfox Produce Limited | Wholesale & retail | 1990 |
| Hillside Accountancy Limited | Professional & scientific | 2025 |
| Hinton Pest Control Limited | Agriculture & fishing | 2011 |
| Hire IT (Harrow) Limited | Administrative & support | 2002 |
| Hire IT Harrow (Holdings) Ltd | Administrative & support | 2012 |
| Hmaw Holdings Limited | Financial services | 2026 |
| Hobbs Haulage Ltd | Transport & logistics | 2021 |
| Holcroft Group Ltd | Health & social care | 2017 |
| Holistic Birth Worcestershire CIC | Health & social care | 2025 |
| Holistic CDS Ltd | Education | 2012 |
| Holloway Agri-Drain Ltd | Agriculture & fishing | 2015 |
| Holloway Capital Ltd | Construction | 2022 |
| Hollowbox Self Storage Ltd | Real estate | 2024 |
| Holly Oak House Limited | Manufacturing | 2024 |
| Holme Hydro Holdings Limited | Professional & scientific | 2014 |
| Holme Hydro Limited | Energy | 2013 |
| Holmes Psychological Services Limited | Professional & scientific | 2017 |
| Holmwood House Management Limited | Households | 1989 |
| Home at Heart Care Limited | Public administration | 2025 |
| Homewood Consultancy Limited | Extraterritorial | 2018 |
| Honeybourne Homes Limited | Professional & scientific | 1994 |
| Hopkins Sprayers Limited | Professional & scientific | 2008 |
| Horizon Counselling & Psychotherapy Limited | Health & social care | 2014 |
| Horsburgh & Cooke Carpentry Ltd | Construction | 2021 |
| Hoshi Properties Ltd | Real estate | 2023 |
| Houghton Distribution Ltd | Wholesale & retail | 2025 |
| Howard Tenens Services Limited | | 1952 |
| Howe Prototype Services Ltd | Manufacturing | 2012 |
| Howells Landscapes Ltd | Administrative & support | 2022 |
| Howlett Building Ltd | Construction | 2017 |
| Howman Partners Ltd | Professional & scientific | 2020 |
| Hrisa Ltd | Health & social care | 2016 |
| HSG Logistics Ltd | Transport & logistics | 2018 |
| HSH Haulage Ltd | Transport & logistics | 2025 |
| HT Holdings Ltd | Financial services | 2017 |
| Hugga Bugga Limited | Administrative & support | 2020 |
| Humankind Flow Ltd | Information & communication | 2025 |
| Hunter Automotive Parts Limited | Wholesale & retail | 2025 |
| Huttlestone Financial Services Limited | Financial services | 2020 |
| Huxley Communications Ltd | Professional & scientific | 2025 |
| Hycapital Global (UK) Limited | Financial services | 2025 |
| Hydro SG Ltd | Administrative & support | 2018 |
| Hygroup Holdings Limited | Financial services | 2024 |
| Hylabs Limited | Administrative & support | 2022 |
| Hylend Limited | Financial services | 2024 |
| I AM Safe Ltd | Administrative & support | 2025 |
| I M Bota Ltd | Manufacturing | 2018 |
| I Quarter Management Company 1 Limited | Households | 2008 |
| I S Exchangers Limited | Wholesale & retail | 2008 |
| I&M 2020 Ltd | Wholesale & retail | 2020 |
| I.P.Sharkov Fencing and Gardens Ltd | Administrative & support | 2021 |
| I.S.N Transport Ltd | Transport & logistics | 2025 |
| I.T.S. Hire Limited | Transport & logistics | 2021 |
| IAN Dunbar Training & Consultancy Limited | Education | 2018 |
| IBB Trading Ltd | Wholesale & retail | 2024 |
| ICC Industry Cleaning Company Ltd | Construction | 2025 |
| Ickarus Holdings Limited | Financial services | 2023 |
| Ickarus Limited | Financial services | 2023 |