| My Life My Way | Education | 2012 |
| My Life-My Choice Limited | Health & social care | 2002 |
| My Repair Ltd | Other services | 2023 |
| Mycorrhizal Systems Ltd | Agriculture & fishing | 2005 |
| Myowellness Ltd | Wholesale & retail | 2025 |
| Myscrims Ltd | Information & communication | 2026 |
| Mytton Fold Hotel 2020 Ltd | Hospitality | 2020 |
| N & F Empire Limited | Wholesale & retail | 2022 |
| N Berry Ltd | Construction | 2022 |
| N K Hoofcare Limited | Professional & scientific | 2012 |
| N Murray & Co Accountancy and Taxation Advisers Limited | Extraterritorial | 2011 |
| N P Masters Limited | Wholesale & retail | 2007 |
| N. E. L. Services Ltd. | Construction | 1993 |
| N.K Mobile Valeting & Power Washing Ltd | Administrative & support | 2017 |
| NA Pro Services Ltd | Health & social care | 2025 |
| Naeem Aslam Properties Ltd | Real estate | 2026 |
| Nafs Travel Limited | Transport & logistics | 2022 |
| Naga Spice Ltd | Hospitality | 2015 |
| Nags Head Accrington Ltd | Hospitality | 2016 |
| Nagsheadaccy Ltd | Hospitality | 2025 |
| Nahsms Ltd | Wholesale & retail | 2025 |
| NAO Clarity Ltd | Education | 2025 |
| National Care Group Holdings Limited | Financial services | 2019 |
| National Care Group Ltd | Health & social care | 2016 |
| National Lettings Ltd | Real estate | 2018 |
| National Neurological Services Ltd | Health & social care | 2018 |
| Nationwide Specialist Breakers Ltd | Wholesale & retail | 2019 |
| Navitax Ltd | Professional & scientific | 2024 |
| Nayel Motor Company Ltd | Wholesale & retail | 2025 |
| Nazia Cube Solutions Ltd | Transport & logistics | 2026 |
| NDM Transport Ltd | Extraterritorial | 2020 |
| Neelhari Properties Ltd | Real estate | 2024 |
| NEL Consult Ltd | Information & communication | 2015 |
| Nessa's Touch Ltd | Other services | 2024 |
| Netties Limited | Hospitality | 2018 |
| Network Energy Services Limited | Energy | 2019 |
| New Beginnings Health & Wellbeing Ltd | Health & social care | 2025 |
| New Co 32024 Limited | Extraterritorial | 2024 |
| New Freedom Ltd | Wholesale & retail | 2025 |
| New Hope 4 Children Limited | Extraterritorial | 2024 |
| New Innovations Manchester Limited | Wholesale & retail | 2019 |
| New Life Resourcing Ltd | Administrative & support | 2016 |
| New P.D.Q Ltd | Other services | 2022 |
| New Post House Limited | Hospitality | 2024 |
| New YOU With Kayla Ltd | Health & social care | 2024 |
| NEW4 Ltd | Information & communication | 2007 |
| Newfield View Supported Living | Health & social care | 2007 |
| Newhall Veterinary Centre Ltd | Professional & scientific | 2019 |
| Newhey Construction Ltd | Construction | 1992 |
| Newhey Loft Conversions Ltd | Extraterritorial | 2025 |
| Nexlane Ltd | Information & communication | 2026 |
| Next Steps NW Ltd | Real estate | 2025 |
| Nextexx Limited | Hospitality | 2023 |
| Nexus-Support Ltd | Health & social care | 2008 |
| Nfield Holdings Limited | Financial services | 1984 |
| NFW Properties Ltd | Real estate | 2020 |
| NGH Construction Ltd | Manufacturing | 2018 |
| NGH Roofing & Building Ltd | Construction | 2020 |
| NHB Online Limited | Wholesale & retail | 2026 |
| Nhpower Limited | Professional & scientific | 2023 |
| Nicole Ventures Ltd | Wholesale & retail | 2025 |
| Niebo Global Limited | Administrative & support | 2025 |
| Nini's Italian Limited | Hospitality | 2026 |
| NJ Grime Purchasing Services Limited | Professional & scientific | 2006 |
| NLN Ltd | Health & social care | 2021 |
| NO Limits Tiling Ltd | Construction | 2025 |
| NO MAD Drinks & Service Ltd | Hospitality | 2025 |
| Noah's ARK (North) Limited | Education | 2024 |
| Nomad Training Ltd | Education | 2009 |
| Norden Engineering Solutions Limited | Professional & scientific | 2004 |
| Nordlux (UK & Eire) Limited | Wholesale & retail | 2005 |
| Nori HR and Employment Law Limited | Professional & scientific | 2019 |
| North Lancs Training Ltd | Education | 2024 |
| North Lancs. Training Group C.I.C. | Education | 1985 |
| North Point Supplies Ltd | Wholesale & retail | 2025 |
| North Squared Media Ltd | Professional & scientific | 2024 |
| North Star Logistics Holdings Ltd | Financial services | 2024 |
| North Street Blinds Limited | Wholesale & retail | 2014 |
| North Street Carpets Limited | Wholesale & retail | 2014 |
| North West Claims and Hire Ltd | Administrative & support | 2025 |
| North West Fires Ltd | Construction | 2020 |
| North West Pet Co Ltd | Wholesale & retail | 2023 |
| North West Vehicle Services Limited | Other services | 2012 |
| North Western Blanks Limited | Manufacturing | 2024 |
| Northbridge Investments Limited | Real estate | 2021 |
| Northcart Ltd | Wholesale & retail | 2026 |
| Northern Autos Ltd | Wholesale & retail | 2022 |
| Northern Delights (NW) Limited | Wholesale & retail | 2020 |
| Northern Investment Alliance Group Limited | Professional & scientific | 2021 |
| Northern Projects Ltd | Wholesale & retail | 2025 |
| Northern Rogue Ltd | Wholesale & retail | 2024 |
| Northern Way Services Limited | Water & waste | 2026 |
| Northpoint Roofing Limited | Construction | 2026 |
| Northstone Landscapes Ltd | Administrative & support | 2026 |
| Northwest Paving Supplies Limited | Wholesale & retail | 2025 |
| Northwest PH Ltd | Administrative & support | 2026 |
| Northwest Propertys Ltd | Real estate | 2008 |
| Northwest TCG Limited | Wholesale & retail | 2026 |
| Northwest Travel T Ltd | Transport & logistics | 2026 |
| Northwest Vehicle Solutions Ltd | Wholesale & retail | 2026 |