| Naturally Real Locs Ltd | Other services | 2020 |
| Naturalnosh Ltd | Manufacturing | 2024 |
| Nature and Nurture Ltd | Extraterritorial | 2011 |
| Nature's Best Cleaners Ltd | Administrative & support | 2026 |
| Natures Girl-The Indoor Gardener Limited | Wholesale & retail | 2024 |
| Natuvera Limited | Wholesale & retail | 2026 |
| Natvir Limited | Real estate | 2002 |
| Nauta Legal Lawyers Ltd | Professional & scientific | 2024 |
| Nautam Builders Limited | Construction | 2010 |
| Navaj Ltd | Construction | 2022 |
| Navam Design and Build Ltd | Professional & scientific | 2014 |
| Navani Consultants Limited | Health & social care | 2017 |
| Navatech U.K. Limited | Information & communication | 2019 |
| Navis UK Limited | Real estate | 2003 |
| Navkar Aircon and Ventilation Ltd | Professional & scientific | 2022 |
| Navkar Consultancy Services Limited | Information & communication | 2022 |
| Navkar Property Ltd | Real estate | 2024 |
| Navlungo Ltd | Transport & logistics | 2022 |
| Navnit Jayantilal Patel Limited | Extraterritorial | 2025 |
| Navon World Limited | Financial services | 2024 |
| Navshanti (UK) Ltd | Real estate | 2023 |
| Navy & Mustard Limited | Professional & scientific | 2022 |
| Navya Advisory Limited | Information & communication | 2024 |
| Navya Cakes and Foods Limited | Hospitality | 2024 |
| Navya Kitchen Ltd | Hospitality | 2025 |
| NAW Concept Limited | Other services | 2022 |
| Nawaal’S Kitchen Ltd | Hospitality | 2024 |
| Nawana Properties (UK) Limited | Real estate | 1997 |
| Naxpar LAB (UK) Limited | Professional & scientific | 2004 |
| Naxura Global Limited | Wholesale & retail | 2026 |
| Nayaatech Limited | Information & communication | 2010 |
| Nayagan Limited | Information & communication | 2025 |
| NAYN4 LLP | | 2023 |
| Nayoga Limited | Professional & scientific | 2008 |
| Naysa Synergy Ltd | Professional & scientific | 2022 |
| NAZ Bros Ltd | Hospitality | 2019 |
| NB LUX Limited | Transport & logistics | 2025 |
| NB Mortgage & Protection Solutions (LON) Ltd | Financial services | 2022 |
| NB WD6 3 Ltd | Real estate | 2026 |
| Nbbb Company Limited | Real estate | 2025 |
| Nbhk (UK) Ltd | Administrative & support | 2022 |
| NBK Global Ltd | Construction | 2006 |
| NC Commercial Services Limited | Professional & scientific | 2025 |
| NC Gardening Ltd | Administrative & support | 2020 |
| NC Healthcare (PS) Ltd | Other services | 2017 |
| NC Healthcare Ltd | Administrative & support | 2010 |
| NC Morgan Limited | Administrative & support | 2026 |
| NCA Rail Ltd | Construction | 2015 |
| Ncalimlim Co Ltd | Administrative & support | 2020 |
| Ncare Health Ltd | Health & social care | 2024 |
| NCC Real Estates Ltd | Real estate | 2018 |
| NCI Garden Ltd | Administrative & support | 2026 |
| NCJ & Co Limited | Real estate | 2014 |
| NCL Properties Group Ltd | Real estate | 2025 |
| Ncmc Consulting Limited | Information & communication | 2016 |
| NCP Construction Ltd | Construction | 2020 |
| NCR Property Limited | Real estate | 2024 |
| NCT Electrical Ltd | Construction | 2024 |
| NCT Project Ltd | Other services | 2018 |
| ND Aesthetics Ltd | Health & social care | 2024 |
| ND Building Services Ltd | Construction | 2018 |
| ND Computers Ltd | Wholesale & retail | 2011 |
| ND Contractors Ltd | Construction | 2016 |
| ND Enterprise Ltd | Arts & recreation | 2025 |
| ND Fusle Ltd | Construction | 2025 |
| ND Properties Ltd | Hospitality | 2013 |
| NDA Training Limited | Other services | 2009 |
| NDK Ventures Ltd | Wholesale & retail | 2025 |
| Ndoci Limited Ltd | Extraterritorial | 2013 |
| Ndotco Ltd | Information & communication | 2017 |
| NDR Motors Limited | Wholesale & retail | 2010 |
| NDR Professional Ltd | Construction | 2020 |
| NDS Properties Ltd | Real estate | 2021 |
| NDS Systems Inc Limited | Information & communication | 2012 |
| Ndsd Ltd | Real estate | 2022 |
| NDU Holdings Limited | Real estate | 2019 |
| NEA Energy Limited | Administrative & support | 2020 |
| NEA Retail Limited | Wholesale & retail | 2024 |
| Neal & Palmer Formal Wear Limited | Wholesale & retail | 2022 |
| Neal Louise Creative Ltd | Real estate | 2021 |
| Neal's Yard Limited | Professional & scientific | 1997 |
| Neasden Advice Ltd | Professional & scientific | 2020 |
| Neasden Montessori School Limited | Education | 2015 |
| Neat Street Limited | Real estate | 2021 |
| Nebula Horizon Ltd | Professional & scientific | 2021 |
| Nebula LR Limited | Professional & scientific | 2025 |
| Nebula Radiology Services Ltd | Health & social care | 2025 |
| Nebula Solutions Limited | Information & communication | 2017 |
| NEC Roofing Ltd | Construction | 2024 |
| Neco Constructions Ltd | Construction | 2025 |
| Nectar Commercial Limited | Real estate | 2020 |
| Nectar Property Investments Limited | Real estate | 2015 |
| Nectar Specialty Limited | Financial services | 2019 |
| Necula Ltd | Construction | 2014 |
| Nede Limited | Construction | 2018 |
| Needitwantit Ltd | Wholesale & retail | 2021 |
| Needlepoint Properties Ltd | Construction | 2025 |
| Neekau Ltd | Health & social care | 2015 |
| Neel Dentistry Limited | Health & social care | 2010 |
| Neel Homeopathic Clinic Ltd | Health & social care | 2020 |