| Nanjing Landscape Agroscience Ltd | Administrative & support | 2016 |
| Nanna (5&6) Ltd | Real estate | 2017 |
| Nanny DS Holdings Limited | Wholesale & retail | 2023 |
| Nantong Trend International Industry Co., Ltd. | Administrative & support | 2023 |
| Nanuk Ltd | Manufacturing | 2026 |
| Nanyodo Blue Bird International Co., Ltd | Wholesale & retail | 2025 |
| Naosh Limited | Wholesale & retail | 2023 |
| Nape Clothing Ltd | Wholesale & retail | 2023 |
| Nappet Ltd | Manufacturing | 2025 |
| Napril Holding Ltd | Financial services | 2023 |
| Naramente Ltd | Wholesale & retail | 2025 |
| Naroller Electronics Limited | Extraterritorial | 2022 |
| Narrowbyte Ltd | Wholesale & retail | 2025 |
| NAS Estates Ltd | Hospitality | 2026 |
| Nashmi International Trade Co., Ltd | Wholesale & retail | 2025 |
| Nashukati Ltd | Wholesale & retail | 2025 |
| Nassguard UK Ltd | Manufacturing | 2025 |
| Natalie's Tours Ltd | Administrative & support | 2021 |
| Nathalie Edwards Project Management Ltd. | Construction | 2011 |
| National Global Logistics Ltd | Administrative & support | 2015 |
| National Rink Hockey Association of England Limited | Arts & recreation | 1989 |
| National Security Consultancy Ltd | Administrative & support | 2020 |
| Natur Academic Courses Ltd | Education | 2023 |
| Natural Capital Advisors Ltd | Financial services | 2021 |
| Natural Mind Therapies Ltd | Education | 2021 |
| Natural Mindset Ltd | Administrative & support | 2020 |
| Natural Results Ltd | Wholesale & retail | 2004 |
| Naturally Better Health Ltd | Wholesale & retail | 2024 |
| Naturally Nude Artisanal Ltd | Manufacturing | 2020 |
| Nature Blue Ltd | Wholesale & retail | 2025 |
| Nature Research Ltd. | Other services | 2006 |
| Natures Breath Health Ltd | Manufacturing | 2026 |
| Nauwina Ltd | Professional & scientific | 2008 |
| Navalumen Ltd | Wholesale & retail | 2025 |
| Naveego Ltd | Education | 2025 |
| Navico Health Ltd | Wholesale & retail | 2022 |
| Navigator Yang Trading Co., Ltd | Wholesale & retail | 2026 |
| Nawa Technologies Ltd | Information & communication | 2025 |
| Naya Kadam CIC | Education | 2025 |
| Nayel Strong Ltd | Wholesale & retail | 2025 |
| NAZ Business Ltd | Hospitality | 2025 |
| Nazhijiezf Co., Ltd | Wholesale & retail | 2025 |
| Nazhu NA Ltd | Wholesale & retail | 2026 |
| NB Project International LLP | | 2020 |
| NB Tax and Accounting Ltd | Professional & scientific | 2023 |
| Nbrace Wellness Limited | Arts & recreation | 2026 |
| NC 25 Consultancy Ltd | Health & social care | 2025 |
| Nchic Ltd | Extraterritorial | 2024 |
| Neal Advisory Limited | Wholesale & retail | 2020 |
| Neatcleaning Ltd | Administrative & support | 2026 |
| Nebula Collective Ltd | Wholesale & retail | 2025 |
| Nebula Craft Design Ltd | Information & communication | 2026 |
| Nebula Creations Co., Limited | Extraterritorial | 2024 |
| Necteller Limited | Financial services | 2020 |
| Nedelchev Engineering Ltd | Construction | 2026 |
| Neffes Ltd | Wholesale & retail | 2025 |
| Negosyo Ltd | Water & waste | 2018 |
| Nekh Holdings Ltd | Financial services | 2024 |
| Nekkys Luxury Enterprise Ltd | Wholesale & retail | 2026 |
| Nelle Music Ltd | Information & communication | 2026 |
| Nemesis Intelligence Limited | Administrative & support | 2023 |
| Nemg Property Group Ltd | Real estate | 2019 |
| Nemora Ltd | Wholesale & retail | 2025 |
| NEO 369 Limited | Wholesale & retail | 2026 |
| NEO Electric Ltd | Construction | 2026 |
| NEO Ferno UK Limited | Wholesale & retail | 2025 |
| Neofinixhomes Ltd | Construction | 2021 |
| Neoform Technologies Ltd | Wholesale & retail | 2026 |
| Neogene Elements Ltd | Manufacturing | 2014 |
| Neon Europe Limited | Information & communication | 2025 |
| Neowave Media Limited | Wholesale & retail | 2025 |
| Neptunes Tech Ltd | Information & communication | 2025 |
| Nerea Limited | Financial services | 2026 |
| Nero's Friends Ltd | Administrative & support | 2026 |
| Nesh Community Sauna Ltd | Other services | 2026 |
| Nest Easy Ltd | Real estate | 2024 |
| Nestable Technologies Inc Limited | Transport & logistics | 2019 |
| Nestem Properties Ltd | Hospitality | 2026 |
| Nestui Ltd | Information & communication | 2026 |
| Nestura Group Ltd | Health & social care | 2025 |
| Nestura Nest Ltd | Health & social care | 2025 |
| NET Zero Stratford CIC | Hospitality | 2021 |
| Netavencia Co., Limited | Information & communication | 2026 |
| Netnook Ltd | Wholesale & retail | 2024 |
| Netpunk Limited | Information & communication | 2023 |
| Netsellix Ltd | Wholesale & retail | 2026 |
| Nettoyeursincroyables Ltd | Information & communication | 2025 |
| Neubit Limited | Information & communication | 2016 |
| Neubit Properties Ltd | Real estate | 2021 |
| Neumai Ltd | Professional & scientific | 2025 |
| Neuro Acupuncture Group Ltd | Professional & scientific | 2024 |
| Neuromarketing Ltd | Wholesale & retail | 2025 |
| Neuronetworks AI Ltd | Information & communication | 2025 |
| Neurovate TX Ltd | Manufacturing | 2024 |
| Neurovitoom Ltd | Professional & scientific | 2025 |
| Neutron International Ltd | Wholesale & retail | 2025 |
| Nevaeh D. Healthcare Ltd | Manufacturing | 2024 |
| Nevie-Global Limited | Manufacturing | 2025 |
| Nevobi Ltd | Wholesale & retail | 2025 |
| New Albion Creations Ltd | Wholesale & retail | 2025 |