| Namo Market Ltd | Wholesale & retail | 2026 |
| Nan's Kitchen Ltd | Hospitality | 2018 |
| Nancy’S Elite Events Ltd | Wholesale & retail | 2022 |
| Nanocorp Ltd | Professional & scientific | 2006 |
| Nanton Aviation Consulting Limited | Administrative & support | 2019 |
| Naomi Stewart Limited | Hospitality | 2016 |
| Nasaju Trading Ltd | Transport & logistics | 2023 |
| Nascent LLP | | 2019 |
| Nasera Optics Limited | Health & social care | 2015 |
| Nash Hospitality Ltd | Hospitality | 2026 |
| Nash-Stone-Uk Limited | Construction | 2021 |
| Nashville & Rock Limited | Hospitality | 2026 |
| NAT Developments Ltd | Manufacturing | 2025 |
| Nata Pasta Ltd | Manufacturing | 2021 |
| Natales Limited | Wholesale & retail | 2004 |
| Natalie ANN Limited | Financial services | 2019 |
| Natalie Grosvenor & Associates Ltd | Professional & scientific | 2017 |
| Natalie Kerr Ltd | Wholesale & retail | 2025 |
| Nathan Green Electrical Ltd | Construction | 2017 |
| National Association of Writers in Education | Other services | 2000 |
| National Association of Youth Theatres | Other services | 1994 |
| National Food and Drink Awards Limited | Arts & recreation | 2016 |
| National Skills Academy for Food and Drink | Education | 2003 |
| National SM (UK) Ltd | Administrative & support | 2022 |
| National Workforce Ltd | Administrative & support | 2016 |
| Native Adrenaline Limited | Professional & scientific | 2020 |
| Native Chartered Architects Limited | Professional & scientific | 2008 |
| Native Gardens Ltd | Administrative & support | 2023 |
| Natterjacks VET Limited | Extraterritorial | 2014 |
| Natural Stone Online Limited | Wholesale & retail | 2016 |
| Naturally Yorkshire Limited | Hospitality | 2015 |
| Natures Crops International Limited | Agriculture & fishing | 2004 |
| Natures Remedies Limited | Professional & scientific | 2019 |
| Natus Vincere Limited | Wholesale & retail | 2019 |
| Nawal Assessments Limited | Health & social care | 2010 |
| Nawton Racing Limited | Arts & recreation | 2015 |
| Naylor Property Services Limited | Construction | 2017 |
| NAZ York Ltd | Hospitality | 2019 |
| NB Solution Yorkshire Limited | Transport & logistics | 2022 |
| Nbradley Consultancy Ltd | Information & communication | 2025 |
| NBS Electrical Ltd | Energy | 2025 |
| Nccp Ltd | Wholesale & retail | 2025 |
| NCL EOT Limited | Professional & scientific | 2023 |
| NCO (Eight) Limited | Construction | 2023 |
| NCO (Seven) Limited | Professional & scientific | 2023 |
| NCO (SIX) Limited | Construction | 2021 |
| NCO. (One) Limited | Real estate | 2004 |
| NCO. (Two) Limited | Professional & scientific | 2004 |
| ND Imaging Ltd | Health & social care | 2025 |
| NDA Estates Limited | Professional & scientific | 2005 |
| Ndgf (FD) Ltd | Professional & scientific | 2014 |
| Ndh&Co Ltd | Wholesale & retail | 2014 |
| Nduka Arts Limited | Extraterritorial | 2023 |
| NE Global Media GMH Limited | Information & communication | 2024 |
| NE Hull Ltd | Construction | 2003 |
| NE Series Ltd | Arts & recreation | 2021 |
| Neal Construction Ltd | Construction | 2019 |
| Neat Whisky Club Limited | Wholesale & retail | 2022 |
| Nebula Core Limited | Professional & scientific | 2024 |
| Necom Limited | Hospitality | 2019 |
| Nedex Corp Limited | Transport & logistics | 2023 |
| Nedex Ltd | Agriculture & fishing | 2010 |
| Nedgo Development Ltd | Construction | 2018 |
| NEED2EAT Limited | Information & communication | 2012 |
| Neep MED Limited | Health & social care | 2025 |
| Neew Sleeve Media Limited | Information & communication | 2024 |
| Neil Barber Engineering Services Limited | Manufacturing | 1985 |
| Neil Davies Construction Limited | Construction | 2003 |
| Neil Grant Ltd | Transport & logistics | 2021 |
| Neil Harrison Planning & Construction Drawings Limited | Professional & scientific | 2021 |
| Neil Laidlaw Consultancy Ltd | Professional & scientific | 2020 |
| Neil Puckering Joinery & Building Services Ltd | Professional & scientific | 2014 |
| Neil Turton Limited | Professional & scientific | 2016 |
| Neill Homes Ltd | Real estate | 2020 |
| Nellist & Company Limited | Wholesale & retail | 1945 |
| Nelson's Park (North Walsham) Residents Management Company Limited | Households | 2017 |
| Nendick Services Limited | Construction | 2020 |
| Nene Veterinary Group Limited | Professional & scientific | 2002 |
| NEO Walk Ltd | Manufacturing | 2021 |
| Neolithic Investments Limited | Real estate | 2020 |
| Neometrix Limited | Professional & scientific | 1998 |
| Neon (York) Management Company Limited | Households | 2017 |
| Neon Bonsai Ltd | Information & communication | 2023 |
| Neon EYE Productions Ltd | Information & communication | 2018 |
| Nephelae Ltd | Hospitality | 2021 |
| Neptune Medical Limited | Wholesale & retail | 2019 |
| Nespresso UK Ltd | Manufacturing | 1919 |
| Ness Hall Ltd | Agriculture & fishing | 2003 |
| Ness Partners Limited | Real estate | 2019 |
| Ness Trading Ltd | Other services | 2023 |
| Nest Interior Design Studio Ltd | Professional & scientific | 2025 |
| Nest Project Management Limited | Professional & scientific | 2018 |
| Nest Property & Developments Ltd | Construction | 2022 |
| Nest Property Group Limited | Construction | 2018 |
| Nest Property Ventures Ltd | Financial services | 2026 |
| Nest Property York Ltd | Real estate | 2017 |
| Nestec York Ltd. | Professional & scientific | 1988 |
| Nestegg Property Sourcing & Services Ltd | Real estate | 2026 |
| Nestle Global Services UK Limited | Professional & scientific | 2022 |
| Nestle Holdings (U.K.) PLC | Financial services | 1948 |