| New Forest Ventures Limited | Information & communication | 2014 |
| New Heights Loft Conversions Limited | Construction | 2015 |
| New Home 4 U Limited | Real estate | 2013 |
| New Home Audits Ltd | Construction | 2022 |
| New Hope Specialist Care Ltd | Health & social care | 2006 |
| New Horizon Construction Limited | Construction | 2014 |
| New Imperial Yipin Food Ltd | Manufacturing | 2024 |
| New Life Church Northampton Ltd | Health & social care | 2002 |
| New Living Development Projects Ltd | Construction | 2021 |
| New Lodge Farm Barns Management Company Limited | Administrative & support | 2020 |
| New Lodge Lawns Limited | Extraterritorial | 2022 |
| New M & J Trading Limited | Wholesale & retail | 2016 |
| New Milton Historics Ltd | Manufacturing | 1973 |
| New Place Associates Limited | Construction | 2018 |
| New Revival (CM) Limited | Construction | 2016 |
| New Roadmender Limited | Arts & recreation | 2016 |
| New Sage Silver River Ltd | Hospitality | 2022 |
| New Testament Church of GOD | Professional & scientific | 1967 |
| New Town Kebab Ltd | Hospitality | 2017 |
| New Vista Ventures Limited | Professional & scientific | 2012 |
| New Walk Properties Ltd | Real estate | 2018 |
| New Wire Electrical UK Ltd | Construction | 2005 |
| New World Creative Print Ltd | Manufacturing | 2000 |
| New YOU Clinic Ltd | Other services | 2019 |
| Newark Golf Club Company Limited(The) | Arts & recreation | 1920 |
| Newbold Service Station (Rugby) Limited | Real estate | 1964 |
| Newcastle Wing Company Limited | Hospitality | 2023 |
| Newcastle Wing Group Limited | Financial services | 2007 |
| Newconcept.Construct Limited | Construction | 2025 |
| Newden Solutions Limited | Construction | 2018 |
| Newedge Cleaning Service Ltd | Administrative & support | 2025 |
| Newell Pubs Ltd | Hospitality | 2025 |
| Newframe Films Ltd | Information & communication | 2024 |
| Newgen M3DIA Ltd | Information & communication | 2022 |
| Newid Solutions Limited | Professional & scientific | 2010 |
| Newland Coachworks Limited | Manufacturing | 1991 |
| Newland Holdings Ltd | Financial services | 2025 |
| Newlec Cycles Limited | Wholesale & retail | 2012 |
| Newlife Gardens Ltd | Administrative & support | 2024 |
| Newman Active Initiative CIC | Education | 2026 |
| Newman Active Ltd | Arts & recreation | 2025 |
| Newman Builders & Plasterers Ltd | Extraterritorial | 2014 |
| Newman Healthcare Ltd | Health & social care | 2013 |
| Newnham Lodge LLP | | 2009 |
| Newpark PIM Ltd | Real estate | 2023 |
| News & Food Distributors Limited | Wholesale & retail | 1999 |
| Newsham Consulting Ltd | Other services | 2017 |
| Newstep Home Care Ltd | Real estate | 2026 |
| Newthorpe Properties Ltd | Construction | 2026 |
| Newton & Bromswold Ltd | Real estate | 2015 |
| Newton & Richards 1 Limited | Real estate | 2025 |
| Newton Homes Limited | Administrative & support | 2006 |
| Newton Homes NO 64 Limited | Extraterritorial | 2014 |
| Newton Homes NO 66 Limited | Construction | 2016 |
| Newton Road (Rushden) Limited | Real estate | 2007 |
| Newtonep Limited | Professional & scientific | 2018 |
| Newtown (NO 1) Limited | Administrative & support | 2007 |
| Newvave Ltd | Manufacturing | 2022 |
| Newvizion Consulting Services Limited | Professional & scientific | 2010 |
| NEX Trading Limited | Professional & scientific | 2005 |
| Nexa Franchise Ltd | Information & communication | 2024 |
| Nexa Shield Security Ltd | Construction | 2026 |
| Nexahive Limited | Wholesale & retail | 2025 |
| Nexatrade Tech Limited | Financial services | 2026 |
| Nexdean Limited | Hospitality | 2015 |
| Nexec Limited | Administrative & support | 2025 |
| Nexgen Business Finance Ltd | Financial services | 2022 |
| Nexgen Dealer Solutions Limited | Financial services | 2025 |
| Nexgen IT Limited | Information & communication | 2023 |
| Nexra Global Ltd | Administrative & support | 2019 |
| Next Generation Sport Limited | Arts & recreation | 2009 |
| Next Chapter Childrens Care Limited | Health & social care | 2024 |
| Next Chapter Properties Limited | Real estate | 2024 |
| Next Mile Express Ltd | Transport & logistics | 2026 |
| Next Move Property Consultants Ltd | Real estate | 2019 |
| Next Time Limited | Health & social care | 2018 |
| Next Trans Ltd | Transport & logistics | 2014 |
| Nextcarpet Ltd | Manufacturing | 2021 |
| Nextday Metals Limited | Extraterritorial | 2002 |
| Nextgen Tyres Limited | Manufacturing | 2025 |
| Nextway Software UK Limited | Information & communication | 2001 |
| Nexus Image Ltd | Wholesale & retail | 2025 |
| Nexus Kitchens Ltd | Construction | 2024 |
| Nexus Physiques Limited | Arts & recreation | 2016 |
| NFY Wave Ltd | Transport & logistics | 2023 |
| NG Trans Limited | Other services | 2026 |
| NGA Consulting Limited | Professional & scientific | 2001 |
| NGH 2023 Limited | Professional & scientific | 2023 |
| Nglsl Investment Limited | Real estate | 2025 |
| NGM Logistic Ltd | Transport & logistics | 2018 |
| NGM Projects Limited | Wholesale & retail | 2016 |
| NGN Brothers Limited | Transport & logistics | 2012 |
| NGO Financial Management Ltd | Administrative & support | 2010 |
| NGS Construction Limited | Construction | 2015 |
| NGU Driver Services Ltd | Transport & logistics | 2025 |
| NGU Interior Ltd | Construction | 2020 |
| NGU Property Estates Ltd | Real estate | 2025 |
| NH Properties & Management Ltd | Real estate | 2021 |
| NH Wholesale & Retail Ltd | Administrative & support | 2026 |
| Nhik Holdings Limited | Professional & scientific | 2018 |