| Mzaman Hotel Holdings Ltd | Real estate | 2017 |
| N & D Investments Ltd. | Real estate | 2002 |
| N & K Catering Limited | Hospitality | 2017 |
| N & L Martin (Holdings) Limited | Financial services | 2024 |
| N ALI Holdings Limited | Financial services | 2023 |
| N B C Commercial Limited | Construction | 2016 |
| N B Fitouts Limited | Administrative & support | 2021 |
| N C Training Services Limited | Information & communication | 2012 |
| N D Vehicle Consultancy Limited | Professional & scientific | 2023 |
| N Hoxha Property Investment Ltd | Real estate | 2024 |
| N Hoxha Valeting Services Ltd | Other services | 2020 |
| N J Barber (Milton Keynes) Ltd | Administrative & support | 2008 |
| N J Barber Ltd | Real estate | 2003 |
| N J C Technology Limited | Extraterritorial | 2003 |
| N J Churcher Limited | Professional & scientific | 2006 |
| N J Davies & Partners Limited | Real estate | 1988 |
| N J L Pattison Ltd | Financial services | 2019 |
| N L Services Ltd | Construction | 2024 |
| N Link Cars Ltd | Transport & logistics | 2020 |
| N Lowther Consulting Limited | Administrative & support | 2012 |
| N Mackie Properties Limited | Real estate | 2020 |
| N Meah Financial Services Limited | Hospitality | 2019 |
| N N Harlestone Ltd | Real estate | 2025 |
| N Packman Associates Limited | Information & communication | 2022 |
| N R PUB Co Ltd | Hospitality | 2024 |
| N Sampson Limited | Health & social care | 2006 |
| N Square Group Limited | Hospitality | 2019 |
| N V Activewear Ltd | Wholesale & retail | 2026 |
| N V Modhwadia Limited | Wholesale & retail | 2010 |
| N&A Financial Associates Ltd | Professional & scientific | 2020 |
| N&A Property Services Ltd | Construction | 2019 |
| N&D Investment Properties Ltd | Real estate | 2025 |
| N&G Interiors Ltd | Construction | 2017 |
| N&Gm Ltd | Wholesale & retail | 2012 |
| N&H Beauty and Perfume Ltd | Wholesale & retail | 2024 |
| N&J Future Solution Ltd | Construction | 2026 |
| N&L Estates Ltd | Real estate | 2022 |
| N&S Dynamics Ltd | Administrative & support | 2025 |
| N'Pton Car Company Limited | Wholesale & retail | 2011 |
| N-Gem Ltd | Real estate | 2024 |
| N.C.A.A.C Limited | Arts & recreation | 2024 |
| N.E.C. Plumbing and Heating Limited | Construction | 2005 |
| N.J.A Transport Ltd | Transport & logistics | 2021 |
| N.P. Timber Company Limited | Real estate | 1962 |
| N1 Mini Market Ltd | Wholesale & retail | 2025 |
| N15 Property Development Ltd | Real estate | 2024 |
| N2 Afro-Caribbean Store Ltd | Wholesale & retail | 2023 |
| N2 Barbers Ltd | Other services | 2023 |
| N2M Drinks Ltd | Wholesale & retail | 2019 |
| N2N Autos Ltd | Wholesale & retail | 2024 |
| N36 Properties Ltd | Real estate | 2020 |
| N3P Consulting Limited | Administrative & support | 2014 |
| Naam Tamilar Brithania | Health & social care | 2019 |
| NAB Consulting (Brixworth) Ltd | Information & communication | 2026 |
| Nabelle Systems Limited | Information & communication | 2006 |
| Nabkan Solutions Limited | Information & communication | 2015 |
| Nacho Bar Limited | Manufacturing | 2018 |
| NAD Engineering Ltd | Construction | 2023 |
| Nadar Transport UK Ltd | Transport & logistics | 2024 |
| Nadjima Habibi Ltd | Health & social care | 2021 |
| Nadsika Company Limited | Public administration | 2022 |
| NAE Concrete Developments Limited | Real estate | 2018 |
| Naeri Mort Ltd | Arts & recreation | 2025 |
| Naezal 770 Consulting Limited | Professional & scientific | 2025 |
| Nafaels Holdings Ltd | Health & social care | 2025 |
| Nafees Sweets & Bakery Northampton Ltd | Hospitality | 2023 |
| Nafuricii Limited | Transport & logistics | 2018 |
| Nagarjuna Kadampa Meditation Centre | Other services | 1994 |
| Nagda Group Limited | Hospitality | 2023 |
| Naicha Coffee Ltd | Hospitality | 2023 |
| Naija Cargo Services Ltd | Transport & logistics | 2014 |
| Naikia Ltd | Professional & scientific | 2026 |
| Nailgoddessdesigns Ltd | Other services | 2025 |
| Najaf Limited | Real estate | 2019 |
| Nakatomi Investment Group Ltd | Real estate | 2024 |
| Nakconsult Ltd | Transport & logistics | 2024 |
| Naked Flames BBQ Ltd | Hospitality | 2026 |
| Nakise Ltd | Real estate | 2025 |
| Nalevu Homes Limited | Households | 2026 |
| Nalevu Limited | Real estate | 2023 |
| Nalixa Foods Limited | Hospitality | 2025 |
| Naly Estates Ltd | Real estate | 2026 |
| Namepol UK Holdings Limited | Financial services | 2023 |
| Nammos Ltd | Administrative & support | 2016 |
| Namta Limited | Health & social care | 2011 |
| Nana Courier Services Ltd | Transport & logistics | 2024 |
| Nana's Studio Ltd | Manufacturing | 2018 |
| Nanaba Adjei Ltd | Wholesale & retail | 2026 |
| Nano Autocare Ltd | Wholesale & retail | 2020 |
| Nano Clean Limited | Manufacturing | 2003 |
| Nano Clean Water Limited | Wholesale & retail | 2009 |
| Nanu’S Kitchen Ltd | Manufacturing | 2021 |
| Naoli Management Limited | Households | 2025 |
| Napangelos Limited | Hospitality | 1977 |
| Napierwalker Landscaping Limited | Administrative & support | 2025 |
| Napsnap Ltd | Wholesale & retail | 2021 |
| NAR Developments Ltd | Manufacturing | 2011 |
| NAR Food Limited | Hospitality | 2019 |
| NAR Group Limited | Manufacturing | 2000 |
| Nardi Consult Limited | Professional & scientific | 2025 |