| National Elevator Services Limited | Professional & scientific | 2018 |
| National Energy Direct Civil Engineering Ltd | Other services | 2019 |
| National Fire Compliance Services Ltd | Professional & scientific | 2022 |
| National Fostering Agency West Limited | Health & social care | 2003 |
| National Fostering Group Limited | Health & social care | 2011 |
| National Kitchen & Bedrooms Limited | Construction | 2023 |
| National Uni-Link Ltd | Education | 2025 |
| Nationwide Academy Ltd | Education | 2024 |
| Nationwide Automotive Limited | Wholesale & retail | 2026 |
| Nationwide Building & Civils Ltd | Construction | 2001 |
| Nationwide Capital Finance Ltd | Financial services | 1993 |
| Nationwide Contract Flooring Limited | Construction | 2020 |
| Nationwide DRY Risers Ltd | Construction | 2012 |
| Nationwide Energy Management Ltd | Professional & scientific | 2015 |
| Nationwide Fast Claims Limited | Administrative & support | 2004 |
| Nationwide Flooring Contracts Limited | Construction | 2007 |
| Nationwide Flooring Group Limited | Construction | 1993 |
| Nationwide Franking Sense Limited | Administrative & support | 1992 |
| Nationwide Healthcare Solutions Limited | Wholesale & retail | 2010 |
| Nationwide Logistic Solutions Limited | Administrative & support | 2015 |
| Nationwide Mailroom Holdings Limited | Financial services | 1993 |
| Nationwide Print Solutions Ltd | Wholesale & retail | 2023 |
| Nationwide Sprinklers Limited | Construction | 2024 |
| Nationwide Tanning Supplies Ltd | | 1999 |
| Nationwide Utility Services Limited | Construction | 2018 |
| Nationwide Vehicle Finance Limited | Wholesale & retail | 2009 |
| Nationwide Wall and Floor Limited | Construction | 2018 |
| Nativeway Ltd | Wholesale & retail | 2026 |
| Natovi Holdings Ltd | Professional & scientific | 2023 |
| Natraj Properties Limited | Wholesale & retail | 2014 |
| Nattyscope Ltd | Wholesale & retail | 2024 |
| Natura Candles Ltd | Wholesale & retail | 2024 |
| Natural Business Solutions Ltd | Professional & scientific | 2011 |
| Natural Origin (UK) Limited | Manufacturing | 2007 |
| Naturasia Ltd | Administrative & support | 2023 |
| Nature Based Solution Entrepreneur Ltd | Agriculture & fishing | 2026 |
| Nature Hub Limited | Real estate | 2024 |
| Naturelle Visage Aesthetics Limited | Health & social care | 2018 |
| Natureschoicegardening Ltd | Professional & scientific | 2021 |
| Naughtyboy Fightwear Ltd | Administrative & support | 2020 |
| Nauman Traders Ltd | Other services | 2025 |
| Nausha UK Ltd | Wholesale & retail | 2017 |
| NAV Healthcare Ltd | Public administration | 2021 |
| Nav's Auto Solutions Ltd | Wholesale & retail | 2025 |
| Naval Holdings Ltd | Real estate | 2016 |
| Naveena Ltd | Wholesale & retail | 2024 |
| Navellou Voices Ltd | Administrative & support | 2018 |
| Navigation Road Northwich Ltd | Construction | 2024 |
| Navigation Road Waterways Northwich Ltd | Construction | 2024 |
| Navimed Software Limited | Information & communication | 2024 |
| Navo Marketing Ltd | Professional & scientific | 2026 |
| NAW Reynolds Building (Marthall) Limited | Construction | 2018 |
| NAW Services Limited | Professional & scientific | 2024 |
| Nawa Autos Ltd | Wholesale & retail | 2025 |
| Nawadir Alhala Trading Ltd | Wholesale & retail | 2016 |
| Nawaz Ltd Ltd | Wholesale & retail | 2025 |
| Nayeb Ltd | Hospitality | 2016 |
| Naylor Building Developments Ltd | Construction | 2022 |
| Naylor Building Services Limited | Construction | 2016 |
| Naylor Construction NW Ltd | Construction | 2016 |
| Naylor Hvac Ltd | Construction | 2022 |
| Nayyar Homes Ltd | Real estate | 2025 |
| NAZ Food Store (KH) Limited | Wholesale & retail | 2025 |
| NAZ Gadget Ltd | Wholesale & retail | 2020 |
| Nazbees Ltd | Hospitality | 2025 |
| Nazeer Limited | Transport & logistics | 2019 |
| Nazim Hakim Ltd | Health & social care | 2020 |
| Nazmul Engineering Limited | Professional & scientific | 2023 |
| Naznav Ltd | Wholesale & retail | 2021 |
| Nazs Management Consultancy Limited | Professional & scientific | 2023 |
| NB Business Finance Limited | Financial services | 2024 |
| NB Financial Advisors Limited | Professional & scientific | 2025 |
| NB NW Limited | Wholesale & retail | 2025 |
| NB Pharm Limited | Health & social care | 2025 |
| NB Restaurant Ltd | Hospitality | 2026 |
| NB Technology Ltd | Professional & scientific | 2023 |
| Nbcf Ltd | Professional & scientific | 2022 |
| Nbck Limited | Financial services | 2022 |
| NC Art Limited | Arts & recreation | 2025 |
| NC Bricklaying Contractors Limited | Construction | 2016 |
| NC Consulting Limited | Administrative & support | 2007 |
| NC Digital Limited | Information & communication | 2025 |
| NC Online Coaching Ltd | Arts & recreation | 2024 |
| NC1 Ltd | Professional & scientific | 2026 |
| Ncmnp Ltd | Construction | 2026 |
| NCN Building Restoration & Conservation Ltd | Construction | 2014 |
| Nctg Property Ltd | Real estate | 2021 |
| ND Building NW Ltd | Construction | 2026 |
| ND Tuning Ltd | Wholesale & retail | 2016 |
| Ndctec Limited | Information & communication | 2019 |
| Ndev Limited | Information & communication | 2021 |
| NDL Invest Ltd | Real estate | 2024 |
| Ndmo Limited | Financial services | 2022 |
| NDO Supplies Limited | Wholesale & retail | 2018 |
| Ndon Holdings Limited | Financial services | 2018 |
| NDP Financial Ltd | Financial services | 2026 |
| Nebu Developments Limited | Construction | 2024 |
| Nebula Offshore Services Ltd | Professional & scientific | 2023 |
| Ned's Cafe Limited | Hospitality | 2017 |
| Needham Electrical Services Ltd | Construction | 2007 |