| Nisha Fashions Limited | Wholesale & retail | 2002 |
| Nitram Consulting Limited | Professional & scientific | 2007 |
| Nitrile Disposable Gloves UK Ltd | Wholesale & retail | 2026 |
| Nitro Gaming Ltd | Wholesale & retail | 2024 |
| NIX Accommodation Limited | Real estate | 2020 |
| Nixon Consultants Limited | Professional & scientific | 2016 |
| Nixon Radiology Limited | Health & social care | 2018 |
| NJC Business Solutions Limited | Professional & scientific | 2021 |
| NJE Limited | Administrative & support | 2019 |
| NJO Limited | Other services | 2013 |
| NJW Services Ltd | Financial services | 2024 |
| NKS Metals Ltd | Wholesale & retail | 2023 |
| NLB Optoms Ltd | Health & social care | 2015 |
| NLK 998 Ltd | Hospitality | 2025 |
| Nlpharma Ltd | Wholesale & retail | 2022 |
| NMC Estates Limited | Real estate | 2016 |
| NML Holdings Ltd | Financial services | 2024 |
| NO.42 - the Drinks Specialist Limited | Wholesale & retail | 2018 |
| NO29 Hairdressing Limited | Other services | 2020 |
| Noah Russel Management Ltd | Real estate | 2022 |
| Noble & Rigg Accountants Limited | Professional & scientific | 2011 |
| Noble Engineering Services Ltd | Professional & scientific | 2024 |
| Noble FOX Bespoke Suits Ltd | Wholesale & retail | 2022 |
| Noctorum Dell Developments Ltd | Construction | 2026 |
| Nolan Electrical Fire & Security Ltd | Construction | 2021 |
| Nomadic Digital Limited | Professional & scientific | 2019 |
| NON Stop Appliances Ltd | Other services | 2025 |
| Nook Mortgages Limited | Financial services | 2019 |
| Noor UL AIN Ltd | Wholesale & retail | 2025 |
| Nordstrand Advisory Ltd | Professional & scientific | 2025 |
| Norizon Ltd | Information & communication | 2023 |
| Norlands Farm (Widnes) Management Company Limited | Households | 2004 |
| Norley Leighton Limited | Financial services | 2020 |
| Norsx Limited | Administrative & support | 2016 |
| North Futures Limited | Real estate | 2021 |
| North Star Rail Alliance Ltd | Professional & scientific | 2025 |
| North Star Video Games Ltd | Information & communication | 2014 |
| North Value Mart Ltd | Wholesale & retail | 2025 |
| North West Access Solutions Limited | Construction | 2019 |
| North West Attire Ltd | Wholesale & retail | 2023 |
| North West Christian Business Forum Limited | Professional & scientific | 2012 |
| North West Construction (Special Projects) UK Ltd | Construction | 2016 |
| North West Damp Wirral Limited | Construction | 2018 |
| North West Emergency Locksmiths Limited | Construction | 2009 |
| North West Media Walls Ltd | Construction | 2026 |
| North West Oak Limited | Real estate | 2021 |
| North West Shop Online Ltd | Wholesale & retail | 2021 |
| North West Waste Transfer Limited | Water & waste | 2022 |
| North Wirral Auto Conversions Ltd | Wholesale & retail | 2015 |
| Northern Flooring Contracts Limited | Construction | 2016 |
| Northern Flooring Limited | Wholesale & retail | 1998 |
| Northern Gender Network Ltd | Public administration | 2025 |
| Northern Kites Kitesurfing Ltd | Education | 2021 |
| Northern Kites Ltd | Wholesale & retail | 2019 |
| Northern Properties Wirral Ltd | Real estate | 2026 |
| Northlight Surveying Limited | Professional & scientific | 2026 |
| Northside Transport Ltd | Transport & logistics | 2024 |
| Northwest Basketball Development CIC | Arts & recreation | 2025 |
| Northwest Coverings Limited | Other services | 2014 |
| Northwest Invest Limited | Real estate | 2009 |
| Northwest Property Safe Limited | Construction | 2014 |
| Norwegian Food Company UK Limited | Hospitality | 2019 |
| Noshaba NAZ Limited | Health & social care | 2021 |
| Nostalgix Ltd | Information & communication | 2013 |
| NOT Ultra Processed Limited | Manufacturing | 2025 |
| Nota Holdings Limited | Information & communication | 2022 |
| Notesable Ltd | Information & communication | 2021 |
| Nothing BUT Thieves Bookkeepers Ltd | Professional & scientific | 2025 |
| Nourish and Gain Ltd | Health & social care | 2021 |
| Novae Biotech Ltd | Financial services | 2025 |
| Novi Partners Limited | Information & communication | 2024 |
| Novitas Services Limited | Education | 2002 |
| Novoco UK Ltd | Administrative & support | 2024 |
| NOX AI Ltd | Information & communication | 2026 |
| Noya Bar & Grill Restaurant Ltd | Hospitality | 2025 |
| NOZ Keane Coaching Ltd | Arts & recreation | 2021 |
| NP Auto Engineering Ltd | Wholesale & retail | 2024 |
| Np-Bsl Interpreting Services Ltd | Professional & scientific | 2015 |
| Npcn Ltd | Education | 2023 |
| NR Associates Ltd | Administrative & support | 2019 |
| NRC WWS Ltd | Administrative & support | 2010 |
| NS Glass Ltd | Construction | 2003 |
| NS Martial Arts Ltd | Education | 2025 |
| NS Property Rentals Limited | Real estate | 2026 |
| Nsno Holdings T/A Seaking Developments Ltd | Construction | 2017 |
| Nstl Holdings Ltd | Real estate | 2020 |
| NUA Thai Cuisine Ltd | Hospitality | 2023 |
| Nuco Home Limited | Wholesale & retail | 2022 |
| Nugent Consulting Limited | Professional & scientific | 2018 |
| Number 22 Aesthetics Ltd | Health & social care | 2021 |
| Nuneaton Ventures Limited | Real estate | 2001 |
| Nuovo Care Limited | Health & social care | 2026 |
| Nursethetics Limited | Health & social care | 2021 |
| Nurture (Recruitment Business Support) Ltd | Administrative & support | 2024 |
| Nurture International Ltd | Education | 2020 |
| Nutrition 4 Nippers Ltd | Health & social care | 2018 |
| Nutrition and ME Limited | Health & social care | 2025 |
| Nuvira Botanicals Limited | Wholesale & retail | 2025 |
| Nuvs Limited | Information & communication | 2016 |
| NV Management Ltd | Administrative & support | 2000 |