| Nehrain UK Trading Limited | Wholesale & retail | 2022 |
| Neighbourhood Health Parks C.I.C. | Health & social care | 2026 |
| Neil Dagger Ltd | Information & communication | 2023 |
| Neil Frettsome Ltd | Wholesale & retail | 2017 |
| Neil James Consulting Ltd | Professional & scientific | 2025 |
| Neil Jeffery Limited | Administrative & support | 2012 |
| Neil Mistry Ltd | Financial services | 2019 |
| Neil Savjani Wealth Management Limited | Financial services | 2012 |
| Neil Taylor Consultancy Ltd | Professional & scientific | 2023 |
| Neil the Caravan Medic Limited | Wholesale & retail | 2009 |
| Neil Willies and Company Limited | Professional & scientific | 1990 |
| Neils J. Antliff Limited | Construction | 2002 |
| Neil’S Investment Company Limited | Real estate | 2024 |
| Neitel Support Limited | Administrative & support | 2025 |
| Nejla Creative Ltd | Wholesale & retail | 2019 |
| NEL Apparel Limited | Wholesale & retail | 2025 |
| Nellai New Heights Ltd | Real estate | 2022 |
| Nellie Holdings Ltd | Real estate | 2021 |
| Nelson Cantrell Ltd | Wholesale & retail | 2025 |
| Nemesis Global Logistics Limited | Transport & logistics | 2021 |
| Nemos Fish Bar Limited | Hospitality | 2019 |
| Nene Open Water Swimmers Limited | Arts & recreation | 2020 |
| Nene Valley Tax Services Limited | Professional & scientific | 2014 |
| Neno (U.K.) Ltd | Wholesale & retail | 2016 |
| NEO Engineering Limited | Wholesale & retail | 2013 |
| NEO FM Ltd | Administrative & support | 2024 |
| Neogram Ltd | Wholesale & retail | 2023 |
| Neoluxe Cleaning and Management Limited | Administrative & support | 2026 |
| Neom Industrial Gases Limited | Manufacturing | 2025 |
| Neom Trading Limited | Wholesale & retail | 2019 |
| Neonwood Limited | Real estate | 1985 |
| Neotech Group Ltd | Construction | 2026 |
| Neotect Limited | Extraterritorial | 2006 |
| Neowall Ltd | Wholesale & retail | 2023 |
| Neox Building Ltd | Construction | 2026 |
| Nephology Limited | Arts & recreation | 2024 |
| Neptune Care Ltd | Administrative & support | 2024 |
| Neptune Construction Limited | Construction | 2017 |
| Neptune Transformation Limited | Administrative & support | 2017 |
| Neptune Worldwide Ltd | Professional & scientific | 2020 |
| Nepwick Greatest Ltd | Administrative & support | 2015 |
| Neqee Support Ltd | Health & social care | 2025 |
| Nest Acre Holdings Limited | Financial services | 2022 |
| Nest Acre Limited | Real estate | 2021 |
| Nest Acre Stays Limited | Real estate | 2022 |
| Nest Foam & Furnishings Ltd | Wholesale & retail | 2014 |
| Nest Interior Design and Staging Ltd | Professional & scientific | 2015 |
| Nest Properties (Leicester) Limited | Construction | 2016 |
| Nest Worldwide Ltd | Wholesale & retail | 2015 |
| NEST53 Ltd | Real estate | 2025 |
| Nesting Lotus Ltd | Other services | 2022 |
| Nestkin Ltd | Wholesale & retail | 2025 |
| Nestled Investment Ltd | Other services | 2022 |
| Nesttproperty Ltd | Real estate | 2022 |
| Nestura Limited | Real estate | 2024 |
| NET Clothing Limited | Wholesale & retail | 1996 |
| NET Comms Services Ltd | Information & communication | 1994 |
| NET Connect Solutions Ltd | Information & communication | 2024 |
| NET Fashion Ltd | Manufacturing | 2019 |
| NET Pear Limited | Information & communication | 2017 |
| NET Zero Architectural Ltd | Construction | 2022 |
| NET Zero Target Group Ltd | Construction | 2025 |
| Netcradus Limited | Information & communication | 2025 |
| Neth Homes Ltd | Real estate | 2025 |
| Netherbury Skills Ltd | Construction | 2014 |
| Nethercote Success Ltd | Transport & logistics | 2015 |
| Netherhall Fish & Chips Ltd | Hospitality | 2024 |
| Netready Limited | Information & communication | 2000 |
| Nett R3TAIL Ltd | Construction | 2012 |
| Netview Cctv Ltd | Wholesale & retail | 2013 |
| Network 360 UK Limited | Wholesale & retail | 2025 |
| Network Bytes Ltd | Information & communication | 2015 |
| Network Estates Investment Limited | Financial services | 2016 |
| Network Estates Limited | Real estate | 1999 |
| Network Magic Limited | Information & communication | 1999 |
| Network Midlands Ltd | Information & communication | 2007 |
| Network Vision Solution Ltd | Professional & scientific | 2024 |
| NEU Community Wellbeing CIC | Education | 2025 |
| NEU Wellbeing Ltd | Professional & scientific | 2025 |
| Neuclo Technology Ltd | Manufacturing | 2017 |
| Neuracare Ltd | Health & social care | 2025 |
| Neureka Solutions Limited | Professional & scientific | 2020 |
| Neuro Zone Ltd | Education | 2024 |
| Neurodiversity Support CIC | Other services | 2023 |
| Neurogastroenterology and Digestive Disease Centre Ltd | Health & social care | 2025 |
| Neuropsych Consulting Ltd | Administrative & support | 2003 |
| Neurosity Ltd | Administrative & support | 2022 |
| Neurovam Limited | Information & communication | 2015 |
| Neutrino Global Ltd | Administrative & support | 2019 |
| Neutronics (UK) Limited | Manufacturing | 2001 |
| Nevaeh Cleaning Services Ltd | Administrative & support | 2023 |
| Nevaeh Health & Wellness Ltd | Other services | 2023 |
| Nevaeh Properties Ltd | Real estate | 2022 |
| Nevaeh Property Management Ltd | Real estate | 2021 |
| Nevaris Pharma Ltd | Manufacturing | 2026 |
| Never Ending Retail Limited | Wholesale & retail | 2024 |
| Nevpa UK Ltd | Wholesale & retail | 2022 |
| New AGE Design UK Ltd | Wholesale & retail | 2020 |
| New ARC Limited | Professional & scientific | 2024 |
| New Ashdown Limited | Administrative & support | 2025 |