| Nationwide Hire and Storage Ltd | Transport & logistics | 2014 |
| Nationwide Locums Ltd | Administrative & support | 2020 |
| Nationwide Property Holdings Ltd | Real estate | 2018 |
| Nationwide Transportation Limited | Transport & logistics | 2018 |
| Native Bhasa Ltd | Public administration | 2025 |
| Natobotics Ltd | Administrative & support | 2018 |
| Natt Traders Ltd | Wholesale & retail | 2026 |
| Natura London Ltd | Other services | 2022 |
| Natural Balance Farringdon Ltd | Other services | 2021 |
| Natural Balance Moorgate Ltd | Other services | 2023 |
| Natural Beauty Hair Salon Ltd | Other services | 2019 |
| Natural Flavour Ltd | Hospitality | 2022 |
| Natural Hill UK Ltd | Wholesale & retail | 2025 |
| Natural Intelligence Limited | Professional & scientific | 2019 |
| Natural Sheepskin Ltd | Wholesale & retail | 2023 |
| Natural Ways (Baker Street) Limited | Other services | 2011 |
| Natural Ways Body Balance Limited | Other services | 2012 |
| Natural Ways Limited | Other services | 2009 |
| Naturalivity Seamoss Limited | Manufacturing | 2020 |
| Naturals Fresh Ltd | Wholesale & retail | 2025 |
| Nature & Health Limited | Health & social care | 2013 |
| Nature Empowered Ltd | Wholesale & retail | 2023 |
| Nature Scent Beauty Ltd | Wholesale & retail | 2024 |
| Nature's Elixir Ltd | Wholesale & retail | 2025 |
| Natureehairoil Limited | Wholesale & retail | 2024 |
| Natureray Wellness Ltd | Wholesale & retail | 2020 |
| Natures Anabolic Supplements (N . a Supplements) Ltd | Manufacturing | 2021 |
| Natures Consumers Ltd | Wholesale & retail | 2014 |
| Natures Sweep Limited | Administrative & support | 2024 |
| Natway Ltd | Construction | 2018 |
| Naught Films Ltd | Information & communication | 2023 |
| Nautilus Project Management & Mentoring Ltd | Professional & scientific | 2023 |
| NAV Builders Limited | Construction | 2019 |
| NAV Marine Consultancy Limited | Professional & scientific | 2014 |
| NAV RIA Ltd | Real estate | 2025 |
| NAV Traders UK Limited | Wholesale & retail | 2011 |
| Navagra Hospitality Ltd. | Hospitality | 2019 |
| Navagraga Building and Civil Engineering Ltd | Construction | 2023 |
| Navagrahas Limited | Wholesale & retail | 2025 |
| Navaruchi Limited | Hospitality | 2022 |
| Naveen Foods Ltd | Financial services | 2019 |
| Naveen Investment Holdings Limited | Financial services | 2020 |
| Navhoo Birmingham Limited | Other services | 2019 |
| Navi Decor Ltd | Construction | 2023 |
| Navi Fragrances Limited | Wholesale & retail | 2025 |
| Navin Jaitly Coaching Ltd | Education | 2021 |
| Navins Ltd | Hospitality | 2019 |
| Navit Trading Ltd | Wholesale & retail | 2025 |
| Navjana Ltd | Real estate | 2024 |
| Navko Direct Ltd | Wholesale & retail | 2026 |
| Navv Associates Ltd. | Professional & scientific | 2013 |
| Navy Chauffeur Service Ltd | Transport & logistics | 2026 |
| Nawab Sweets T/A Chashni Sweets Limited | Manufacturing | 2022 |
| Nawabganic Limited | Extraterritorial | 2023 |
| Nawaz Afridi Ltd | Wholesale & retail | 2023 |
| Naxertech Limited | Manufacturing | 2009 |
| Naya Venue Limited | Hospitality | 2025 |
| Nayabtrading Ltd | Wholesale & retail | 2025 |
| Nayanika Properties Ltd | Real estate | 2019 |
| Naybur Brothers Limited | Wholesale & retail | 1966 |
| Nayden Trading Limited | Wholesale & retail | 2023 |
| Naylor Electrical Limited | Energy | 2025 |
| Nayz Ltd | Wholesale & retail | 2025 |
| NAZ & Son's Enterprises Ltd | Administrative & support | 2024 |
| NAZ Essentials Ltd | Wholesale & retail | 2024 |
| NAZ Investment Property Ltd | Real estate | 2024 |
| NAZ Property Limited | Real estate | 2017 |
| Naza Connect Care Ltd | Health & social care | 2018 |
| Nazakat Group Limited | Wholesale & retail | 2025 |
| Nazdar Foods Limited | Hospitality | 2025 |
| Nazeingbury News Limited | Wholesale & retail | 2005 |
| Nazma Enterprise Limited | Wholesale & retail | 2025 |
| Nazneen Patel Ltd | Health & social care | 2023 |
| NB Flooring Ltd | Manufacturing | 2025 |
| NB London Ltd | Real estate | 2020 |
| NB Patel Traders Ltd | Hospitality | 2025 |
| NB Tech Solutions Ltd | Information & communication | 2024 |
| NBA Foods Limited | Hospitality | 2024 |
| NBJ Holdings Limited | Financial services | 2024 |
| NBL Chapel Limited | Construction | 2021 |
| NBL Project BH Ltd | Construction | 2018 |
| Nbl&Co Limited | Information & communication | 2025 |
| NBN Services Limited | Wholesale & retail | 2023 |
| Nbtt Homes Limited | Real estate | 2024 |
| NCC Enterprises Ltd | Wholesale & retail | 2021 |
| NCD Consultancy Limited | Health & social care | 2011 |
| Ndgd Services Limited | Construction | 2025 |
| NDN Construction 23 Ltd | Construction | 2023 |
| Ndovu Investments Ltd | Financial services | 2016 |
| NDP Traders Ltd | Wholesale & retail | 2024 |
| NDR Investments Ltd | Wholesale & retail | 2010 |
| NDS Motors Ltd | Wholesale & retail | 2025 |
| Nds&Co Limited | Wholesale & retail | 2025 |
| Nduja & Sausage Limited | Hospitality | 2019 |
| Neals Supermarkets Ltd | Wholesale & retail | 2018 |
| Neanderthal Limited | Financial services | 2009 |
| Neat & Clean Property Ltd | Administrative & support | 2026 |
| Neat Clearance and Removals Limited | Information & communication | 2025 |
| Neatgemstones Ltd | Wholesale & retail | 2026 |
| Neatnestify Ltd | Administrative & support | 2025 |