| Nael Empowerment CIC | Health & social care | 2025 |
| Nafeez Takeaway Ltd | Hospitality | 2018 |
| Nafeh Ltd | Wholesale & retail | 2023 |
| Nagfit Limited | Other services | 2019 |
| Nagina Javid Limited | Hospitality | 2025 |
| Naik Health Ltd | Health & social care | 2024 |
| Nail & Beauty Shop Limited | Other services | 2003 |
| Nail Design 88 Ltd | Other services | 2024 |
| Nail Estate Limited | Other services | 2024 |
| Nail Fairy 238 Ltd | Other services | 2023 |
| Nailed IT by Louisa Ltd | Other services | 2022 |
| Nails 4 U LS Ltd | Other services | 2025 |
| Nails by Amanda Ltd | Other services | 2025 |
| Nails by Tam’S Ltd | Other services | 2025 |
| Nails USA Ltd | Other services | 2025 |
| Nails Z Limited | Other services | 2026 |
| Nailsbyzizu Ltd | Other services | 2025 |
| Naisat Ltd | Information & communication | 2012 |
| Najson Ltd | Other services | 2016 |
| Nakab Ltd | Transport & logistics | 2026 |
| Nakal Limited | Hospitality | 2025 |
| Nakam Ltd | Health & social care | 2013 |
| Nakedesign Packaging Solutions Limited | Administrative & support | 2016 |
| Nakeshree Properties Ltd | Real estate | 2015 |
| Nakfana Limited | Real estate | 2024 |
| Nakis Logistics Limited | Wholesale & retail | 2026 |
| Nakku Medical Services Ltd | Health & social care | 2016 |
| Nakoda Healthcare Limited | Health & social care | 2023 |
| Nakshatra Private Limited | Manufacturing | 2025 |
| NAL Events Ltd | Hospitality | 2025 |
| Nala Studios Ltd | Professional & scientific | 2025 |
| Nall Ltd | Extraterritorial | 2013 |
| NAM Facades Ltd | Construction | 2014 |
| NAM Rental Limited | Real estate | 2019 |
| Nama Properties Ltd | Real estate | 2026 |
| Namaste Bengal Ltd | Hospitality | 2019 |
| Namata Care Ltd | Health & social care | 2017 |
| Nameyourratemaintenance Ltd | Extraterritorial | 2024 |
| Namytta Limited | Information & communication | 2025 |
| Nana Holts Builders Ltd | Construction | 2024 |
| Nana's Empire Ltd | Wholesale & retail | 2023 |
| Nanadirect Limited | Wholesale & retail | 2009 |
| Nanak Holdings Ltd | Administrative & support | 1998 |
| Nanak Properties Ltd | Construction | 1998 |
| Nanamedia Ltd | Professional & scientific | 2024 |
| Nanatrans Leeds Ltd | Transport & logistics | 2018 |
| Nancroft Management Company Limited | Households | 2004 |
| Nandhra & Sons Ltd. | Wholesale & retail | 2012 |
| Nandi Ltd | Health & social care | 2015 |
| Nandk Ltd | Hospitality | 2025 |
| Nandra and Company (Leeds) Limited | Health & social care | 2009 |
| Nandra Builders Leeds Ltd | Construction | 2025 |
| Nandru Ltd | Wholesale & retail | 2021 |
| NANES123 Ltd | Real estate | 2023 |
| Nanna Property Ltd | Real estate | 2024 |
| Nano Catering Solutions Ltd | Other services | 2018 |
| Nanopharm Limited | Manufacturing | 2002 |
| Nanotech Investments Limited | Professional & scientific | 2016 |
| Nantewynn Holidays Ltd | Real estate | 2020 |
| Nantwich Property (SA) Limited | Real estate | 2019 |
| Nanu Group Limited | Professional & scientific | 2022 |
| Nanu Sport Ltd | Arts & recreation | 2019 |
| NAO Services Ltd | Construction | 2020 |
| Naptime Nightwear Ltd | Wholesale & retail | 2019 |
| Naqibur Rahman Limited | Professional & scientific | 2014 |
| Naqvi Investments Limited | Financial services | 2025 |
| Narcissus Investments Limited | Real estate | 2014 |
| Nardos Kitchen & Bakery Ltd | Hospitality | 2025 |
| Narin Properties Limited | Real estate | 2020 |
| Narin Shawarma Limited | Hospitality | 2024 |
| Narindera Properties Limited | Real estate | 2004 |
| Narkissos Limited | Wholesale & retail | 2013 |
| Narla Engineering & Imports Limited | Manufacturing | 1962 |
| Narla Engineering Holdings Limited | Financial services | 2017 |
| Narla Engineering Midlands Limited | Extraterritorial | 2004 |
| Narla Limited | Real estate | 1964 |
| Narr Radio C.I.C. | Information & communication | 2026 |
| Narrabeen Design Limited | Professional & scientific | 2024 |
| Narresh Ltd | Professional & scientific | 2016 |
| Narsek Ltd | Wholesale & retail | 2026 |
| NAS Enterprise (U.K) Ltd | Manufacturing | 2024 |
| Nasal Ltd | Health & social care | 2025 |
| Nascimento Logistics Limited | Transport & logistics | 2026 |
| Naseby Capital Ltd | Real estate | 2024 |
| Nash Warren Insurance Services Limited | Financial services | 2004 |
| Nasheman Limited | Wholesale & retail | 2026 |
| Nasia (NW) Limited | Wholesale & retail | 2019 |
| Nasir Cutlery Ltd | Wholesale & retail | 2020 |
| Nasot Realty Ltd | Real estate | 2022 |
| Nasra Foods Ltd | Wholesale & retail | 2020 |
| NAT Acquisition Ltd | Real estate | 2025 |
| Natabay Limited | Wholesale & retail | 2025 |
| Natalie Scott Design Limited | Professional & scientific | 2018 |
| Natalie Stewart Aesthetics Limited | Health & social care | 2018 |
| Natalino Italian Food Specialists Ltd | Wholesale & retail | 2021 |
| Natasha Escobar Permanent Makeup and Beauty Therapy Ltd | Other services | 2019 |
| Natcha Body N Mind Ltd | Health & social care | 2024 |
| Natcha Spa Ltd | Health & social care | 2024 |
| Natcha Style Ltd | Other services | 2021 |
| Natcha Thai Ltd | Health & social care | 2024 |