| Navon Consult Ltd | Information & communication | 2020 |
| Navy Good Sunshine Property Limited | Real estate | 2021 |
| Nawabs Kitchen London Ltd | Hospitality | 2024 |
| Nawabs Kitchen Ltd | Hospitality | 2024 |
| Nawaz Properties Ltd | Real estate | 2021 |
| Naweemat UK Enterprise Ltd | Wholesale & retail | 2018 |
| Naxata Ltd | Wholesale & retail | 2026 |
| Naxums Ltd | Wholesale & retail | 2025 |
| Nayira Properties Limited | Real estate | 2025 |
| NAZ Maintenance Ltd | Construction | 2022 |
| Nazar Building Ltd | Construction | 2015 |
| Naze Properties Limited | Financial services | 2018 |
| Nazir & Jebun Ltd | Real estate | 2025 |
| NBE Construction Ltd | Construction | 2022 |
| NC RAD Ltd | Health & social care | 2025 |
| NC Range Site Limited | Construction | 2007 |
| Ncac Construction Limited | Construction | 2019 |
| NCB Tiling Ltd | Construction | 2025 |
| NCC Strategic Limited | Professional & scientific | 2026 |
| Nccin Holdings Ltd | Real estate | 2026 |
| NCD Services Ltd | Construction | 2020 |
| Ncdr Limited | Real estate | 2022 |
| Ncgm Ltd | Construction | 2019 |
| Ncipher Solutions Limited | Information & communication | 2004 |
| NCT Cars Ltd | Wholesale & retail | 2023 |
| ND Construction Services Ltd | Construction | 2026 |
| ND Fashion World Ltd | Wholesale & retail | 2021 |
| Ndebelestar Ltd | Health & social care | 2023 |
| NDO Sports Ltd | Arts & recreation | 2023 |
| NDT Testing Limited | Professional & scientific | 2017 |
| NDV Luxury Ltd | Construction | 2023 |
| Neame Ingram Advertising Ltd | Professional & scientific | 2020 |
| Nearby Store Limited | Wholesale & retail | 2023 |
| Nearynashbuilding Ltd | Construction | 2025 |
| Neatboy Productions Limited | Information & communication | 2008 |
| Neatly & Co Cleaners Limited | Administrative & support | 2025 |
| Nebula Consulting Group Limited | Administrative & support | 2019 |
| Nedelcris Ltd | Construction | 2025 |
| Need for Clean Ltd | Manufacturing | 2026 |
| Need for Style Limited | Professional & scientific | 2015 |
| Need Removals Ltd | Transport & logistics | 2017 |
| Needback Limited | Construction | 2024 |
| Neelkanth Limited | Wholesale & retail | 2026 |
| NEG Legal and Advocates Ltd | Information & communication | 2017 |
| Negis Services Limited | Hospitality | 2022 |
| Nehra Motors Ltd | Wholesale & retail | 2022 |
| Neiborhood Limited | Information & communication | 2020 |
| Neilan Brothers Limited | Real estate | 2020 |
| Neilan Traders Limited | Wholesale & retail | 2023 |
| Neill & Bib's Ltd | Real estate | 2024 |
| Neill Mylroie Real Estate Consulting Ltd | Real estate | 2020 |
| Neimar Romario Ltd | Construction | 2023 |
| Nellore Construction & Renovations Ltd | Construction | 2026 |
| Nelson and Yvonne Technologies Ltd | Information & communication | 2022 |
| Nemms Property Management Ltd | Households | 2019 |
| Nenysbeautyworld Ltd | Other services | 2024 |
| NEO Transport Group Ltd | Transport & logistics | 2026 |
| Neolit British Construction Company Ltd | Construction | 2024 |
| Neon Property Services Limited | Real estate | 2022 |
| Neos Medtech Limited | Manufacturing | 2026 |
| Neptune Cleaning and Restoration Limited | Administrative & support | 2020 |
| Nerdpix Services Ltd | Information & communication | 2024 |
| Nesa Holdings Limited | Financial services | 2021 |
| Nesa LLP | | 2021 |
| Nesa Partners LLP | | 2021 |
| Nesa Solutions Ltd | Professional & scientific | 2024 |
| Nesco Ltd | Wholesale & retail | 2023 |
| Nest Contractors Ltd | Real estate | 2015 |
| Nest Craft Limited | Wholesale & retail | 2026 |
| Nest International Limited | Real estate | 2026 |
| Nestek Limited | Manufacturing | 2024 |
| Nestkind Homes Limited | Real estate | 2026 |
| Nestmesh Limited | Information & communication | 2025 |
| Netbiz Limited | Administrative & support | 2024 |
| Netlives Limited | Information & communication | 2019 |
| Nettlespring Ltd | Professional & scientific | 2025 |
| Netto Express Ltd | Wholesale & retail | 2019 |
| Netto Romford Limited | Wholesale & retail | 2020 |
| Network and IT Solution Ltd | Information & communication | 2010 |
| Network Cabling Services Limited | Information & communication | 1984 |
| Network for Democratic Bangladesh Ltd | Other services | 2025 |
| NETWORK780 Ltd | Information & communication | 2015 |
| Networks Bridge Limited | Administrative & support | 2023 |
| Netwox Limited | Information & communication | 2007 |
| Neurolinguistic Healthcare Ltd | Education | 2017 |
| Neusol Ltd | Professional & scientific | 2014 |
| Neverland Studio Ltd | Professional & scientific | 2022 |
| Nevis Contructions Limited | Construction | 2017 |
| New ASH Fashions Ltd | Wholesale & retail | 2025 |
| New Avenue Social Club Limited | Hospitality | 2018 |
| New Century (East Grinstead) Limited | Hospitality | 2005 |
| New Chapter Healthcare Services Ltd | Health & social care | 2023 |
| New Domestic Appliances Ltd | Other services | 2026 |
| New ERA Contracts Ltd | Construction | 2019 |
| New ERA Estates Ltd | Real estate | 2022 |
| New Glory Ministry | Other services | 2021 |
| New Happy House Limited | Hospitality | 2024 |
| New Level Education Limited | Information & communication | 2018 |
| New Line Pro Ltd | Construction | 2017 |
| New Local Tools Ltd | Wholesale & retail | 2019 |