| Holden Smith Consultancy Ltd | Professional & scientific | 2020 |
| Holden Smith Consulting Ltd | Professional & scientific | 2025 |
| Holden Wood Tea Rooms Limited | Hospitality | 2009 |
| Hollinrake Developments Ltd | Construction | 2011 |
| Hollowforth Mill Farms Ltd | Agriculture & fishing | 2022 |
| Holmai Properties Limited | Real estate | 2018 |
| Holme Manor Limited | Health & social care | 2026 |
| Holmes Mill Leisure Ltd | Hospitality | 2016 |
| Holmes Mill Properties Limited | Real estate | 2016 |
| Homecare Services (NW) Ltd | Health & social care | 2025 |
| Homes for Kids Ltd | Health & social care | 2025 |
| Honey POT Pubs & Bars Ltd | Hospitality | 2025 |
| Honeywell Lettings Ltd | Real estate | 2017 |
| HOP Doctor Brewing Ltd | Professional & scientific | 2021 |
| Hopcraft Agricultural Services Ltd | Agriculture & fishing | 2014 |
| Hopcraft Engineering Services Limited | Professional & scientific | 2021 |
| Horner Investments Ltd | Real estate | 2021 |
| Host Your Home Ltd | Real estate | 2023 |
| Houldsworth Hall Limited | Professional & scientific | 2013 |
| HP Holdings (NW) Ltd | Financial services | 2021 |
| HTD Forestry Ltd | Agriculture & fishing | 2020 |
| Human Beans HR Ltd | Administrative & support | 2025 |
| Humble PIE Kitchen Ltd | Wholesale & retail | 2015 |
| Huncoat Beef Company Limited | Wholesale & retail | 1991 |
| Hurlingham Estates Limited | Real estate | 1988 |
| Hurst Green Management Limited | Professional & scientific | 2014 |
| Hurst Green Plastics Limited | Manufacturing | 1985 |
| Hxmzyamazon Ltd | Transport & logistics | 2026 |
| Hybak Ltd | Professional & scientific | 2021 |
| Hyndburn Enterprise Trust Limited | Professional & scientific | 1982 |
| Hyposol UK Ltd | Professional & scientific | 2022 |
| I Cycle Limited | Wholesale & retail | 2013 |
| Iain Speak Consultancy Limited | Professional & scientific | 2014 |
| Ice and Spice and ALL Things Nice Ltd | Hospitality | 2018 |
| Icskills.Com Limited | Professional & scientific | 2002 |
| Icslive Limited | Administrative & support | 2012 |
| Identity Defined Ltd | Professional & scientific | 2021 |
| IH Digital Ltd | Administrative & support | 2018 |
| ILH Consulting Limited | Professional & scientific | 2021 |
| Imagine Growth Ltd | Professional & scientific | 2024 |
| Immigrant Ltd | Professional & scientific | 2015 |
| Impeccable Aesthetics Ltd | Other services | 2025 |
| Impex Business Services Ltd | Administrative & support | 2012 |
| In-Depth Diagnostics Ltd | Health & social care | 2022 |
| Inch Perfect Trials Group Limited | Financial services | 2018 |
| Inch Perfect Trials Limited | Arts & recreation | 2011 |
| Incy Ltd | Information & communication | 2019 |
| Indigo Financial Services Ltd | Financial services | 2017 |
| Ingbridge Properties Ltd | Real estate | 2024 |
| Ingham and Yorke LLP | | 2008 |
| Innovative Creative Solutions Ltd | Administrative & support | 2018 |
| Innovo Hub Ltd | Professional & scientific | 2021 |
| Inshriach Properties Ltd | Real estate | 2022 |
| Insidetrack Garages (Clitheroe) Ltd | Wholesale & retail | 2014 |
| Insight Change Ltd | Professional & scientific | 2024 |
| Inspired by Pixels Ltd | Professional & scientific | 2021 |
| Instant Search Limited | Information & communication | 1993 |
| Instructd Ltd | Information & communication | 2024 |
| Insulation Plumbing & Renewables Retail Ltd | Wholesale & retail | 2017 |
| Inveniam Solutions Limited | Professional & scientific | 2013 |
| Invisura Ltd | Other services | 2025 |
| Iona Sports Massage Ltd | Arts & recreation | 2025 |
| IPM Asset SPV Ltd | Wholesale & retail | 2024 |
| IPM SPV Four Limited | Wholesale & retail | 2022 |
| IPM SPV One Limited | Wholesale & retail | 2020 |
| IPM SPV SIX Ltd | Wholesale & retail | 2024 |
| IPT Manchester Limited | Arts & recreation | 2020 |
| Isel Fishings Limited | Professional & scientific | 2006 |
| It's Magnesium Limited | Health & social care | 2025 |
| Iterum Technologies Ltd | Professional & scientific | 2026 |
| Iwantastandingdesk Limited | Manufacturing | 2013 |
| IWT Services North West Ltd | Other services | 2024 |
| J & M Leeming Limited | Agriculture & fishing | 2009 |
| J & M Timber Supplies Ltd | Manufacturing | 2001 |
| J a & B Parkinson Limited | Transport & logistics | 2003 |
| J Archer Carpets Ltd | Wholesale & retail | 2008 |
| J C Lees Limited | Agriculture & fishing | 2006 |
| J Couzins Sales Limited | Wholesale & retail | 2025 |
| J G Smith & R J Staveley Ltd | Agriculture & fishing | 2015 |
| J Haworth Limited | Real estate | 2003 |
| J Hodkinson Construction Ltd | Construction | 2024 |
| J J R C Developments Limited | Professional & scientific | 2005 |
| J S Accountancy (Northwest) Limited | Professional & scientific | 2013 |
| J S Atherton & Co Limited | Real estate | 2014 |
| Jacfish Limited | Professional & scientific | 2022 |
| Jack Barnes (Farming) Limited | Agriculture & fishing | 1973 |
| JAF Transport Ltd | Administrative & support | 2022 |
| Jaffa’S Group Ltd | Hospitality | 2024 |
| JAM Coding UK Ltd | Information & communication | 2019 |
| JAM Franchising Limited | Professional & scientific | 2020 |
| JAM LMS Ltd | Information & communication | 2025 |
| James Alpe (Holdings) Limited | Financial services | 2008 |
| James Alpe Developments Limited | Construction | 2014 |
| James Alpe Limited | Wholesale & retail | 1997 |
| James Duerden Group Ltd | Financial services | 2026 |
| James Hamer Wealth Management Ltd | Financial services | 2019 |
| James' Places (Northwest) Limited | Professional & scientific | 2013 |
| Jardine Leisure Limited | Manufacturing | 2017 |
| Jass Trading Ltd | Wholesale & retail | 2022 |
| Jaxer Ltd | Administrative & support | 2021 |