| N K Paving Ltd | Construction | 2019 |
| N R Harrison Property Ltd | Real estate | 2025 |
| N R Medicare Ltd | Health & social care | 2021 |
| N Stephenson Audio Production Ltd | Wholesale & retail | 2019 |
| N Wadhera Ltd | Professional & scientific | 2013 |
| N&Am Construction Ltd | Construction | 2025 |
| N&S Dhingra Limited | Health & social care | 2014 |
| N.Bruzas Limited | Transport & logistics | 2026 |
| N.C. Freehold Limited | Households | 2007 |
| N.E.G. Construction Services Limited | Construction | 2002 |
| N.E.W Supplies Ltd | Wholesale & retail | 2024 |
| N262 ALI Limited | Hospitality | 2020 |
| N3 Holdings Limited | Real estate | 2024 |
| N8 Digital Limited | Information & communication | 2023 |
| N8EWM Ltd | Real estate | 2025 |
| NAC (Domestic Appliances) Ltd | Administrative & support | 2011 |
| Nada Locums Ltd | Health & social care | 2014 |
| Nadco 2020 Limited | Professional & scientific | 2020 |
| Nagtode Radiology Limited | Health & social care | 2019 |
| Nahnoo Curative Limited | Health & social care | 2019 |
| Nail Creation UK Distribution Limited | Wholesale & retail | 2018 |
| Naish PVT Limited | Transport & logistics | 2023 |
| Najam & Family Properties Ltd | Real estate | 2022 |
| Najam Holding Limited | Financial services | 2023 |
| Nanovel Technology Ltd. | Professional & scientific | 2007 |
| Naples Pizza Europe Ltd | Wholesale & retail | 2026 |
| Napoli Pizza Wakefield Ltd | Hospitality | 2025 |
| Nascentia Wealth Limited | Financial services | 2025 |
| Nasir's Barbers Ltd | Other services | 2019 |
| NAT Contractors Ltd | Agriculture & fishing | 2025 |
| Natasha Green Physiotherapy Ltd | Other services | 2024 |
| Nate Labs Ltd | Information & communication | 2025 |
| Nate Property Management Limited | Real estate | 2023 |
| National Association of Retired Police Officers | Other services | 2024 |
| National Careers Week CIC | Education | 2016 |
| National Coal Mining Museum Trading Limited | Wholesale & retail | 2004 |
| National Team Facilities Maintenance Limited | Construction | 2018 |
| Nationwide Property Solutions Limited | Administrative & support | 2008 |
| Nationwide Scaffolding Ltd | Construction | 2025 |
| Nationwide Secure Limited | Administrative & support | 2023 |
| Nationwide Structures Holdings Limited | Financial services | 2021 |
| Nationwide Structures Limited | Manufacturing | 2000 |
| Natt Properties Ltd | Real estate | 2021 |
| Natural Landscape Media Limited | Information & communication | 2021 |
| Naturally Best Event Catering Ltd | Hospitality | 2012 |
| Nauti Nutrition Ltd | Manufacturing | 2026 |
| Nautilus Aquatics Ltd | Wholesale & retail | 2020 |
| Navishnah Retail Ltd | Wholesale & retail | 2025 |
| Naxen Ltd | Manufacturing | 2026 |
| Naylor Property Estates Limited | Real estate | 2019 |
| Naylor Property Limited | Real estate | 2020 |
| Naylor's Electrical Services Ltd | Construction | 2010 |
| Naylors Transport (Hampers) Limited | Transport & logistics | 1980 |
| NC Developments (Yorkshire) Ltd | Construction | 2006 |
| Ncac 24 Enterprise | Transport & logistics | 2018 |
| Nchemchi Int’L Limited | Wholesale & retail | 2025 |
| NDS Dental Ltd | Health & social care | 2020 |
| NEA354 Management Ltd. | Administrative & support | 2013 |
| NEA380 Management Ltd. | Professional & scientific | 2014 |
| Neat & Tidy Specialist Finishes Ltd | Construction | 2020 |
| Necessitybox Limited | Wholesale & retail | 2025 |
| Neelsun Limited | Health & social care | 2022 |
| Neema Paralegal Services Ltd | Professional & scientific | 2018 |
| NEG Electrical Ltd | Construction | 2026 |
| Neil Bedford Limited | Professional & scientific | 2016 |
| Neil Cordell Limited | Other services | 2016 |
| Nell's Natural RAW Food Ltd | Wholesale & retail | 2021 |
| Nels Properties Limited | Extraterritorial | 2021 |
| Nemesis House Ltd | Households | 2025 |
| Neon Electrical (Horbury) Limited | Construction | 2008 |
| Neon Workshops Ltd | Arts & recreation | 2014 |
| Neospire Limited | Professional & scientific | 2024 |
| Neotekk Innovations Limited | Transport & logistics | 2015 |
| NEP2N Property Limited | Real estate | 2024 |
| Nero Retail Ltd | Wholesale & retail | 2023 |
| Nero Schwarz Group Limited | Financial services | 2023 |
| Nero Traffic Solutions Limited | Construction | 2023 |
| NES Auto Services Ltd | Wholesale & retail | 2024 |
| Nesher Limited | Wholesale & retail | 1997 |
| Nessa Investments Limited | Financial services | 2008 |
| Net-Imex Ltd. | Wholesale & retail | 2005 |
| Netherton Accounting Limited | Professional & scientific | 2019 |
| Netherton Hall Farm (Netherton) Management Company Limited | Households | 1999 |
| Netservices UK Limited | Information & communication | 2010 |
| Nett Car-Service Limited | Administrative & support | 2004 |
| Network Alliance Brokers Ltd | Financial services | 2023 |
| Network Droids Limited | Manufacturing | 2017 |
| Neu-Glas Limited | Construction | 2013 |
| Neurodevelopmental Consultants Clinic Ltd | Extraterritorial | 2023 |
| Neurohive CIC | Education | 2024 |
| New Century Barber Ltd | Other services | 2020 |
| New City Advisory Limited | Professional & scientific | 2025 |
| New DEC (Yorkshire) Limited | Construction | 2015 |
| New DEC Limited | Construction | 1995 |
| New Horizons Initiatives Limited | Wholesale & retail | 2024 |
| New Inn (Burnt Yates) Management Company Ltd | Households | 2022 |
| New Inn Durkar Ltd | Hospitality | 2026 |
| New Leaf Healthcare Limited | Health & social care | 2008 |
| New Life Christian Centre (Wakefield) | Other services | 2007 |
| New Life Home (Oldham) Limited | Construction | 2012 |