| N L D Project Management Limited | Professional & scientific | 2014 |
| N L Mechanical Services Limited | Construction | 2003 |
| N M Property Investments Ltd | Real estate | 2015 |
| N Marriott Motors Ltd | Wholesale & retail | 2022 |
| N P Seth Ltd | Health & social care | 2019 |
| N Pack Machine Services Limited | Manufacturing | 2016 |
| N Ryan ANP Ltd | Health & social care | 2013 |
| N S Bhatti Limited | Financial services | 2025 |
| N S Handy Services Limited | Construction | 2016 |
| N W Camile Ltd | Wholesale & retail | 2020 |
| N W Holdings Long Eaton Limited | Construction | 2024 |
| N&D Estates Ltd | Real estate | 2024 |
| N&J Domestic Property Ltd | Real estate | 2024 |
| N&J Property Services Ltd | Real estate | 2019 |
| N&N House of Dreams Ltd | Real estate | 2024 |
| N&N Property Investment Ltd | Real estate | 2018 |
| N, S. Kambr Limited | Real estate | 2002 |
| N-G Pizza Ltd | Hospitality | 2025 |
| N-Pen Ltd. | Wholesale & retail | 2018 |
| N. and B. Developments Limited | | 1988 |
| N. E. P. Energy Services Limited | Construction | 2008 |
| N. Oakey Properties Ltd | Real estate | 2024 |
| N.A.R. Collective Ltd | Wholesale & retail | 2026 |
| N.B Properties Nottingham Ltd | Households | 2024 |
| N.B.P Ltd | Administrative & support | 2017 |
| N.E. Storage Installations Limited | Construction | 2019 |
| N.E.T. Industrial Services Limited | Professional & scientific | 2009 |
| N.J. Walsh Ltd | Professional & scientific | 2011 |
| N.J.P Living Limited | Real estate | 2024 |
| N.M.Properties (Nottingham) Limited | Real estate | 1984 |
| N.N Group Ltd | Extraterritorial | 2024 |
| N.O.C. Rail Limited | Manufacturing | 2014 |
| N.P.G. Taxi Hire Ltd | Wholesale & retail | 2003 |
| N.P.T.A. Limited | Other services | 2001 |
| N.S.H Corporation Limited | Real estate | 2003 |
| N.Syed Limited | Health & social care | 2016 |
| N0115 Ltd | Information & communication | 2025 |
| N1 Ltd | Financial services | 2016 |
| N1 Visual Ltd | Professional & scientific | 2020 |
| N1BNK Exchange Ltd | Financial services | 2018 |
| N1BNK Ltd | Professional & scientific | 2020 |
| N2 Holdings Ltd | Financial services | 2016 |
| N2 Investments Limited | Financial services | 2020 |
| N2 Talent Ltd | Information & communication | 2004 |
| N43 Ltd | Information & communication | 2019 |
| N47 BW Ltd | Financial services | 2018 |
| N47 RW Ltd | Financial services | 2018 |
| N9 Design & Production Limited | Professional & scientific | 2010 |
| NA Distribution Network Limited | Wholesale & retail | 2024 |
| NA GAS and Bathroom Ltd | Construction | 2017 |
| NA Sandhu Ltd | Transport & logistics | 2022 |
| NA1 Holdings Limited | Real estate | 2025 |
| Naaahh Ltd | Information & communication | 2019 |
| Naace. | Education | 1996 |
| Naaimi Properties Limited | Real estate | 2025 |
| Naakus Afro-Caribbean Shop Ltd | Wholesale & retail | 2025 |
| Naakus Centre for Human Rights and Immigration Ltd | Professional & scientific | 2024 |
| Naakus Construction & Cleaning Solution Ltd | Construction | 2024 |
| Naakus Foundation Ltd | Other services | 2026 |
| Naan Properties Ltd | Real estate | 2024 |
| Nabaranaz Ltd | Financial services | 2025 |
| Nabby World Services Ltd | Health & social care | 2024 |
| Nabrutech Ltd | Households | 2026 |
| Nabsoncare Ltd | Education | 2022 |
| Nabz's Karz Limited | Wholesale & retail | 2023 |
| Nacwes Ltd | Construction | 2025 |
| NAD Grill Helping Others C.I.C. | Professional & scientific | 2020 |
| NAD Grill Ltd | Hospitality | 2020 |
| Nadarakara Ltd | Transport & logistics | 2025 |
| Nader Group Ltd | Information & communication | 2024 |
| Nadi International Investments Ltd | Real estate | 2025 |
| Nadine Logistics Ltd | Transport & logistics | 2025 |
| Nadz Decor & Maintenance Limited | Construction | 2025 |
| NAE Developments Ltd | Arts & recreation | 2015 |
| NAE Enterprises Ltd | Hospitality | 2015 |
| Naeem Ahmad Limited | Health & social care | 2015 |
| Naetwe Healthcare Ltd | Health & social care | 2025 |
| Naffoglobal Ltd | Administrative & support | 2025 |
| Nagaa Ltd | Wholesale & retail | 2025 |
| Nagi Developments Ltd | Construction | 2022 |
| NAGWA3 Limited | Professional & scientific | 2025 |
| Nagz Motors Ltd | Wholesale & retail | 2024 |
| Naheed Zaman Ltd | Extraterritorial | 2022 |
| Nahono Digital Limited | Information & communication | 1997 |
| Nail Art 19 Ltd | Other services | 2024 |
| Nail IT Together Ltd | Information & communication | 2014 |
| Nailed Ltd | Construction | 2025 |
| Nailsbar.Vn Ltd | Other services | 2021 |
| NAJ Property Ltd | Real estate | 2021 |
| Najaro Limited | Professional & scientific | 2021 |
| Najini Limited | Wholesale & retail | 2026 |
| NAK Properties Limited | Real estate | 2016 |
| NAK Tech Limited | Information & communication | 2014 |
| Nakii Builders Ltd | Construction | 2020 |
| Naklank Transport Ltd | Transport & logistics | 2015 |
| Nakota Property Management Ltd | Real estate | 2022 |
| Nalder Analytics Limited | Information & communication | 2012 |
| Nalia Travel Ltd | Administrative & support | 2022 |
| NAM Investments Limited | Wholesale & retail | 2018 |
| Namasyoga Ltd | Other services | 2024 |