| Nancy Spains Group Ltd | Financial services | 2025 |
| Nanda Physio Ltd | Health & social care | 2026 |
| Nanpin Ltd | Real estate | 2024 |
| Naomi Gieva Ltd | Information & communication | 2020 |
| Naomi Property Investments Ltd | Real estate | 2025 |
| NAP Logistics Ltd | Transport & logistics | 2024 |
| Napa Design Limited | Administrative & support | 2024 |
| Napier Court Management (Wembley) Limited | Households | 2024 |
| Naqel Express Cargo Limited | Transport & logistics | 2015 |
| Narabda Investments Limited | Real estate | 2025 |
| Narasimha Holding Ltd | Real estate | 2025 |
| Narayan Engineering Ltd | Professional & scientific | 2025 |
| Narayan Khasta Kachoriwala Ltd | Hospitality | 2026 |
| Narayan Property Limited | Information & communication | 2018 |
| Narayan Services UK Ltd | Health & social care | 2025 |
| Nari Capital Limited | Other services | 2016 |
| Nari Official Limited | Wholesale & retail | 2025 |
| Narindera Construction Ltd | Construction | 2014 |
| Nars Health Ltd | Health & social care | 2020 |
| NAS Caribbean Franchise Limited | Hospitality | 2025 |
| Naseem Akhtar Trading Limited | Wholesale & retail | 2011 |
| Nasha Properties Limited | Real estate | 2023 |
| Nasim Centre Ltd | Wholesale & retail | 2023 |
| Nasiry Ltd | Wholesale & retail | 2023 |
| Naspram Pharma Limited | Administrative & support | 2010 |
| Nasro Ltd | Construction | 2018 |
| NAT Z SEC Limited | Administrative & support | 2025 |
| Natalia Admin Angel Ltd | Hospitality | 2026 |
| Nathan Enterprises Ltd | Wholesale & retail | 2025 |
| Nation Home Care Limited | Public administration | 2019 |
| Nation Records Limited | Arts & recreation | 1989 |
| National Boiler Specialist Limited | Construction | 2016 |
| National Health Servicing Assist Ltd | Administrative & support | 2023 |
| National Property Corporation Ltd | Real estate | 2026 |
| Natraj & Son’S Traders Ltd | Wholesale & retail | 2024 |
| Natural Health Supplies Limited | Transport & logistics | 1991 |
| Natural Star Ltd | Other services | 2025 |
| Nature Kart Ltd | Wholesale & retail | 2022 |
| Naturebiotics Ltd | Manufacturing | 2021 |
| Navare Limited | Health & social care | 2014 |
| Navcs Ltd | Real estate | 2024 |
| Navigate Developments Limited | Real estate | 2021 |
| Nawaijang UK Ltd | Information & communication | 2020 |
| Nawaz Productions Ltd | Wholesale & retail | 2026 |
| Naxmi Education Ltd | Administrative & support | 2021 |
| Naxmi Properties Ltd | Financial services | 2018 |
| Naxmi Wholesale Ltd | Wholesale & retail | 2022 |
| Nayaabtrading Ltd | Wholesale & retail | 2025 |
| Nazman Services Ltd | Health & social care | 2015 |
| Nazops Limited | Information & communication | 2026 |
| NB Construct (UK) Limited | Construction | 2016 |
| NB Ventures Ltd | Wholesale & retail | 2023 |
| NBA Accountants Ltd | Professional & scientific | 2011 |
| NBG Properties Limited | Real estate | 2021 |
| NBH Ventures Ltd | Financial services | 2026 |
| Nbkc Foods Ltd | Hospitality | 2024 |
| NC UK Properties Ltd | Real estate | 2025 |
| NDA Infinity Group Limited | Wholesale & retail | 2026 |
| Ndsol Care Ltd | Health & social care | 2025 |
| Ndsol Limited | Professional & scientific | 2016 |
| Neasden Sunbeds Limited | Administrative & support | 1991 |
| Neat Electrics Ltd | Construction | 2021 |
| Nebula Research Community Interest Company | Education | 2021 |
| Needleholm Limited | Real estate | 1974 |
| Neel Core Ltd | Wholesale & retail | 2026 |
| Neeld Court Management Company Limited | Households | 1999 |
| Neeta & Sons Limited | Real estate | 2020 |
| Negandhi Properties Limited | Real estate | 2017 |
| Negarden Limited | Wholesale & retail | 2024 |
| Negi Solutions Limited | Other services | 2007 |
| Negruser Ltd | Construction | 2014 |
| Neha Enterprises Ltd | Extraterritorial | 2025 |
| Neha Gokani Limited | Real estate | 2021 |
| Neil and Paulomi Ltd | Health & social care | 2019 |
| Neil Swain Associates Ltd | Arts & recreation | 2014 |
| Neil Turner Limited | Health & social care | 2003 |
| Neill Shaw Limited | Financial services | 2015 |
| Nejati Dental Instruments and Supplies (UK) Ltd | Manufacturing | 2005 |
| Nelor Limited | Wholesale & retail | 2025 |
| Nelson House Cambridge Limited | Real estate | 2018 |
| Nemedia Limited | Information & communication | 2017 |
| Nemesis Tech Limited | Information & communication | 2008 |
| NEO Agent Ltd | Information & communication | 2023 |
| NEO Essentials Ltd | Wholesale & retail | 2025 |
| NEO Tech Systems Limited | Information & communication | 2017 |
| Neolifestyles (UK) Ltd | Wholesale & retail | 2017 |
| Neom Renewable Energy Engineering Solutions Ltd | Construction | 2025 |
| Neon Bars Ltd | Hospitality | 2018 |
| Neon Design Consultancy Limited | Administrative & support | 2007 |
| Neotech Solutions Limited | Information & communication | 2020 |
| Neotra Global Limited | Wholesale & retail | 2025 |
| Neovalue Ventures Limited | Information & communication | 2026 |
| Neptax Accountancy Ltd | Professional & scientific | 2019 |
| Neptune Motors Ltd | Wholesale & retail | 2023 |
| Nestgate Properties Ltd | Real estate | 2025 |
| Nestle Foods 1 Ltd | Manufacturing | 2024 |
| Nestpark Trading Limited | | 2007 |
| NET Cyber Security Ltd | Information & communication | 2024 |
| NET IT Services Ltd | Wholesale & retail | 2015 |
| Nethans Cash Handling Solution Ltd | Manufacturing | 2016 |