| Netsafe Security Ltd | Information & communication | 2024 |
| Netsys Technologies Ltd | Information & communication | 2013 |
| Network Survey Limited | Professional & scientific | 2023 |
| Neuralflow Systems Ltd | Information & communication | 2025 |
| Neuralride Innovations and Automations Ltd | Transport & logistics | 2026 |
| Neuro Therapy Network Ltd | Health & social care | 1993 |
| Neutraclean Limited | Water & waste | 2025 |
| Neville 1875 Limited | Extraterritorial | 2024 |
| Neville Construction Limited | Extraterritorial | 2003 |
| Neville Flowers Limited | Extraterritorial | 2013 |
| Neville Funerals Limited | Other services | 2018 |
| Neville Homes Limited | Extraterritorial | 2013 |
| Neville Joinery Limited | Manufacturing | 1983 |
| Neville Memorials Limited | Extraterritorial | 2013 |
| Neville Real Estate Limited | Extraterritorial | 2021 |
| Neville Special Projects Ltd | Construction | 1938 |
| Nevin Elites Ltd | Wholesale & retail | 2020 |
| Nevin Project Management Limited | Construction | 2008 |
| New AGE Consulting Ltd | Professional & scientific | 2024 |
| New AJ Services Ltd | Wholesale & retail | 2013 |
| New Beginnings (DR Faye Bellanca) Limited | Health & social care | 2016 |
| New Berkhamsted Sushi Ltd | Hospitality | 2023 |
| New Bethel Healthcare Limited | Health & social care | 2023 |
| New Bruerne Spice Ltd | Hospitality | 2019 |
| New Build Specialists Ltd | Construction | 2020 |
| New Burgerbox Luton Ltd | Hospitality | 2023 |
| New Choice London Ltd | Real estate | 2020 |
| New Choice MK Limited | Real estate | 2021 |
| New City Express Removals Limited | Transport & logistics | 2026 |
| New Curry Leaf Luton Ltd | Hospitality | 2022 |
| New Developments Group Ltd | Real estate | 2023 |
| New Faster Removals Ltd | Transport & logistics | 2025 |
| New Generation Enterprises Limited | Health & social care | 2003 |
| New Good Friend 168 Ltd | Hospitality | 2019 |
| New Harlow Catering Ltd | Hospitality | 2021 |
| New Khan Mobile Ltd | Wholesale & retail | 2025 |
| New Look Ladies Saloon Limited | Other services | 2024 |
| New Look Styles Ltd | Other services | 2019 |
| New Maci’S Fish N Chips Ltd | Hospitality | 2025 |
| New Mandarin CY Limited | Hospitality | 2024 |
| New Masterchef Luton Ltd | Hospitality | 2021 |
| New Mill END PDC Ltd | Construction | 2024 |
| New Moon Trading Limited | Hospitality | 2025 |
| New Peri Peri Limited | Hospitality | 2026 |
| New PIN Cleaning Services Ltd | Other services | 2024 |
| New Pound Garden Limited | Wholesale & retail | 2026 |
| New Rise Studios Ltd | Extraterritorial | 2012 |
| New Step Investments Ltd | Real estate | 2026 |
| New Style Media Ltd | Professional & scientific | 2018 |
| New Sunview Guest House Limited | Hospitality | 2018 |
| New Sutton House 2020 Ltd | Hospitality | 2020 |
| New Taybah International Limited | Information & communication | 2026 |
| New Team Consultancy Ltd | Administrative & support | 2019 |
| New Tien Tien Limited | Hospitality | 2024 |
| New Town Garage Limited | Wholesale & retail | 2024 |
| New Vision Accountants Limited | Professional & scientific | 2024 |
| New Vision Developments Ltd | Construction | 2001 |
| New Vision Estates Limited | Real estate | 2004 |
| New Vision Property Maintenance Limited | Construction | 2020 |
| New Vision Travel Limited | Administrative & support | 2022 |
| New Wings Garden Hoddesdon Ltd | Hospitality | 2018 |
| New YI JEN (UK) Co. Limited | Wholesale & retail | 2017 |
| NEW65ROUTE Limited | Transport & logistics | 2015 |
| Newage Security Services Ltd | Administrative & support | 2024 |
| Newark Stores Ltd | Wholesale & retail | 2020 |
| Newcastle Properties Limited | Real estate | 1997 |
| Newera Consultants Limited | Information & communication | 1999 |
| Newlife Ventures Limited | Wholesale & retail | 2024 |
| Newmoon Capital Ltd | Real estate | 2024 |
| Newpearl Pizza & Kebab Ltd | Hospitality | 2025 |
| Newport Roofing & Building Ltd | Construction | 2024 |
| Newstone Barrett Driveways Ltd | Administrative & support | 2018 |
| Newton Autos Limited | Wholesale & retail | 2022 |
| Newton Carz Limited | Wholesale & retail | 2025 |
| Newtonray Ltd | Administrative & support | 2015 |
| Newwest UK Group Ltd | Real estate | 2022 |
| Nexa Intervene Ltd | Transport & logistics | 2025 |
| Nexa Nest Ltd | Wholesale & retail | 2024 |
| Nexbridge Limited | Transport & logistics | 2025 |
| Nexbuy Ltd | Wholesale & retail | 2024 |
| Nexity Traders Ltd | Administrative & support | 2018 |
| Nexium International Limited | Wholesale & retail | 2024 |
| Nexlu Ltd | Wholesale & retail | 2026 |
| Nexnet Solutions Ltd | Construction | 2017 |
| Nexo Prime Limited | Wholesale & retail | 2026 |
| Nexora Builder Ltd | Construction | 2026 |
| Nexrealm Limited | Wholesale & retail | 2026 |
| Next Airport Cars Ltd | Transport & logistics | 2026 |
| Next Auto Cars Ltd | Wholesale & retail | 2025 |
| Next Century Productions Limited | Information & communication | 2021 |
| Next Dial Limited | Wholesale & retail | 2025 |
| Next Generation Property Holdings Ltd | Real estate | 2025 |
| Next Generation Scheme CIC | Education | 2025 |
| Next Global Mart Ltd | Wholesale & retail | 2026 |
| Next Level+ Limited | Education | 2026 |
| Next Move Logistics Ltd | Transport & logistics | 2025 |
| Next Phase Process Ltd | Professional & scientific | 2025 |
| Next Stop Cafe Ltd | Hospitality | 2022 |
| Nextbasket Limited | Wholesale & retail | 2025 |
| Nextchoise Ltd | Wholesale & retail | 2025 |