| Network X - the Creator Network Limited | Information & communication | 2026 |
| Netzero Works Renewables Ltd | Construction | 2026 |
| Neuractivity Limited | Health & social care | 2025 |
| Neuralful AI Ltd | Other services | 2023 |
| Neurodelicious CIC | Wholesale & retail | 2023 |
| Neurodirections Ltd | Professional & scientific | 2023 |
| Neurodive Limited | Education | 2022 |
| Neuroroots Ltd | Information & communication | 2025 |
| Neurosoul Ltd | Arts & recreation | 2026 |
| Neutraldecor Limited | Wholesale & retail | 2026 |
| NEV Holdings Limited | Real estate | 2015 |
| Never Again Ltd | Wholesale & retail | 2025 |
| Never Stand Still Limited | Wholesale & retail | 2021 |
| Neverbetterco Ltd | Wholesale & retail | 2025 |
| Nevermind Archive Ltd | Wholesale & retail | 2024 |
| New AGE Beauty Limited | Other services | 2019 |
| New Area Ltd | Wholesale & retail | 2025 |
| New Beginnings Online Learning College Limited | Education | 2025 |
| New Best Mangal Ltd | Hospitality | 2019 |
| New Blue Sky Ltd | Other services | 2023 |
| New Brunswick Property Corporation Limited | Real estate | 1993 |
| New Build Fencing Ltd | Manufacturing | 2018 |
| New Century Soho Limited | Extraterritorial | 2011 |
| New Cross Cars Ltd | Wholesale & retail | 2024 |
| New Day Stays Ltd | Real estate | 2026 |
| New Earth Living Ltd | Administrative & support | 2024 |
| New GEN Online Services Ltd | Arts & recreation | 2025 |
| New GEN Shellaz Ltd | Arts & recreation | 2025 |
| New Homes Sales Cover Ltd | Administrative & support | 2025 |
| New Hope Properties Management Limited | Real estate | 2023 |
| New Horizon Property Group Ltd | Wholesale & retail | 2021 |
| New Horizons Day Care Ltd | Education | 2013 |
| New Leaf Academy Ltd | Education | 2026 |
| New London IP Ltd | Administrative & support | 2012 |
| New London Science Ltd | Wholesale & retail | 2025 |
| New Media Business Group Limited | Administrative & support | 2010 |
| New Shoot Productions Limited | Information & communication | 2025 |
| New Soho Opco Ltd | Extraterritorial | 2020 |
| New TAG POP Ltd | Wholesale & retail | 2025 |
| New Talent Ltd | Administrative & support | 2020 |
| New Ventures Recruitment Ltd | Administrative & support | 2024 |
| New Wave Publishing Ltd | Arts & recreation | 2016 |
| New Wave Solutions Limited | Wholesale & retail | 2025 |
| Newbella Trade Ltd | Wholesale & retail | 2025 |
| Newbirch Investments Limited | Financial services | 2025 |
| Newby's Aroma Ltd | Manufacturing | 2025 |
| Newclean Limited | Administrative & support | 2015 |
| Newhorse Limited | Transport & logistics | 2018 |
| Newmarket Broadband Ltd | Information & communication | 2026 |
| Newmarket Business Park Management Company Limited | Real estate | 2005 |
| Newmarket Electrical Wholesale Ltd | Wholesale & retail | 2016 |
| Newmarket Lawns Limited | Administrative & support | 2024 |
| Newmarket Systems UK Ltd | Information & communication | 2020 |
| Nexabuy Ltd | Wholesale & retail | 2025 |
| Nexaconnect Limited | Wholesale & retail | 2025 |
| Nexalink Solutions Ltd | Wholesale & retail | 2023 |
| Nexdepot Limited | Wholesale & retail | 2026 |
| Nexgens Peoples Ltd | Professional & scientific | 2025 |
| Nexion Software Development Ltd | Information & communication | 2025 |
| Nexis Solutions Limited | Professional & scientific | 2012 |
| Nexlumer Ltd | Information & communication | 2026 |
| Nexlumis Limited | Information & communication | 2026 |
| Nexotive Digital Ltd | Information & communication | 2024 |
| Next ACT Global Ltd | Arts & recreation | 2025 |
| Next Door Wines Ltd | Wholesale & retail | 2025 |
| Next Generation Properties Ltd | Real estate | 2024 |
| Next Hubz Limited | Information & communication | 2024 |
| Next Life Computing Limited | Wholesale & retail | 2025 |
| Next Possibilities UK Limited | Professional & scientific | 2006 |
| Nextbuild Group Ltd | Financial services | 2025 |
| Nextbuild Tech Ltd | Information & communication | 2025 |
| Nextbuild Training Ltd | Education | 2025 |
| Nextech Pro Ltd | Information & communication | 2025 |
| Nexteche Ltd | Wholesale & retail | 2024 |
| Nextera Real Estate Ltd | Real estate | 2025 |
| Nextgen Energy and Heating Limited | Construction | 2024 |
| Nextgen Goods Ltd | Wholesale & retail | 2025 |
| Nextgen IT Consulting Ltd | Information & communication | 2024 |
| Nextgen Search Ltd | Administrative & support | 2025 |
| Nextgen Trainers Ltd | Education | 2025 |
| Nextgenads Ltd | Professional & scientific | 2025 |
| Nextrealgeneration Ltd | Manufacturing | 2024 |
| Nextup Investments Limited | Real estate | 2025 |
| Nexture EDU Ltd | Information & communication | 2025 |
| Nextwave Aquatics CIC | Education | 2026 |
| Nexus Direct Ltd | Information & communication | 2023 |
| Nexus Network Management Limited | Professional & scientific | 2026 |
| Nexusraven Ltd | Wholesale & retail | 2019 |
| Nexvoraop Ltd | Information & communication | 2026 |
| Nexvu Limited | Wholesale & retail | 2025 |
| NFT Development Ltd | Information & communication | 2022 |
| NGB Construction Limited | Construction | 2014 |
| NGB Investments Ltd | Construction | 2016 |
| Ngmi Labs Ltd | Information & communication | 2023 |
| Nguquavi Ltd | Wholesale & retail | 2026 |
| NHX Electrical Ltd | Construction | 2020 |
| NI Oncology Limited | Health & social care | 2020 |
| NIA Living Ltd | Construction | 2025 |
| Nicado Ltd | Wholesale & retail | 2023 |
| Nice Productions Ltd. | Information & communication | 2011 |