| Nigerian Foods Store Ltd | Hospitality | 2023 |
| Night OUT of the Box Ltd | Wholesale & retail | 2020 |
| Nile Convenience Stores Ltd | Wholesale & retail | 2022 |
| Nimaz Ltd | Other services | 2022 |
| Ningbo Estates Ltd | Real estate | 2020 |
| NIO Incorporated Ltd | Health & social care | 2016 |
| Nipsa Ltd | Wholesale & retail | 2026 |
| Nirvana Dental Ltd | Health & social care | 2015 |
| Nisa Builders Ltd | Construction | 2022 |
| Nissi Glorious Ltd | Public administration | 2025 |
| Nixon Property and Maintenance Ltd | Real estate | 2024 |
| Niyatt Real Estates Limited | Real estate | 2023 |
| NJA Flooring Ltd | Construction | 2020 |
| NJC Europe Limited | Manufacturing | 1997 |
| NJK Prime Ltd | Wholesale & retail | 2026 |
| NK Advisers Limited | Professional & scientific | 2024 |
| NK Chauffeur Services Ltd | Transport & logistics | 2026 |
| NKA Direct Ltd | Health & social care | 2023 |
| Nktech Limited | Information & communication | 2019 |
| Nlaurel Sweet Ltd | Administrative & support | 2025 |
| Nlsm Ltd | Professional & scientific | 2025 |
| NMG Legal Limited | Professional & scientific | 2008 |
| NMM Creative Consultancy Ltd | Education | 2025 |
| Nmma Properties Ltd | Real estate | 2025 |
| Nmoyo Ltd | Health & social care | 2024 |
| NMY Ltd | Real estate | 2021 |
| NN Malik Ltd | Real estate | 2026 |
| NN Surveys Limited | Other services | 2018 |
| NO Frills Audio Ltd | Information & communication | 2026 |
| NO Limit Learning Ltd | Extraterritorial | 2022 |
| NO Return Club Limited | Wholesale & retail | 2024 |
| NO Such Thing AS Blue Food Limited | Hospitality | 2024 |
| NO. 84 Centre Management Services Limited | Real estate | 2024 |
| NO.9 Consultants Limited | Professional & scientific | 2010 |
| NO6 Ltd | Construction | 2026 |
| NOA Eatery Ltd | Hospitality | 2026 |
| Noah Estate Capital Ltd | Real estate | 2025 |
| Noarch Holdings Ltd | Professional & scientific | 2016 |
| Nobelmark Ltd | Wholesale & retail | 2021 |
| Nobilis International Ltd. | Professional & scientific | 2009 |
| Noble Pharma Limited | Wholesale & retail | 2017 |
| Nocurfew Events Limited | Arts & recreation | 2010 |
| Nocurfew Properties Limited | Real estate | 2014 |
| NOD Farm Ltd | Agriculture & fishing | 2006 |
| Noel Reid Wines Ltd | Wholesale & retail | 2021 |
| Noel Scanlon Consultancy Limited | Professional & scientific | 2016 |
| Nogender London Ltd | Wholesale & retail | 2019 |
| Noir Performance Ltd | Administrative & support | 2025 |
| Noise Control Limited | Professional & scientific | 2016 |
| Noisehook Limited | Information & communication | 2026 |
| NOL Services Ltd | Transport & logistics | 2016 |
| Nola Technology Ltd | Information & communication | 2016 |
| Nomad Accountants Limited | Professional & scientific | 2023 |
| Nomeatnocry Limited | Hospitality | 2020 |
| Nomi Motors Limited | Wholesale & retail | 2025 |
| Nomis Media Ltd | Professional & scientific | 2024 |
| Noni Properties Ltd | Real estate | 2018 |
| Nooks and Crannys Ltd | Administrative & support | 2024 |
| Noor Education Centre Limited | Education | 2025 |
| Noor Housing Ltd | Real estate | 2025 |
| Noor Property Enterprises Limited | Real estate | 2015 |
| Noor UL Iman Ltd | Education | 2021 |
| Noor Zaman Enterprises Limited | Real estate | 2024 |
| Nooreh Auto Import Ltd | Wholesale & retail | 2026 |
| Nora Andrews Trading Ltd | Wholesale & retail | 2021 |
| Nordic Beauty Ltd | Other services | 2025 |
| Nordin Catic Media Ltd | Professional & scientific | 2024 |
| Nordoff Associates Ltd | Administrative & support | 2026 |
| Normanton Catering Technicians Limited | Manufacturing | 2007 |
| Normec(Manchester)Limited | Manufacturing | 1960 |
| Normie Lettings Limited | Real estate | 2025 |
| North Creative Ltd | Professional & scientific | 1994 |
| North East Holiday Lets Ltd | Hospitality | 2018 |
| North Park IT Solutions Limited | Professional & scientific | 2013 |
| North Productions CIC | Education | 2022 |
| North RTD Ltd | Wholesale & retail | 2024 |
| North Stand Films Limited | Information & communication | 2015 |
| North West Anglers Alliance Ltd | Agriculture & fishing | 2025 |
| North West Asset Finance Limited | Other services | 2014 |
| North West Bodyshop Suppliers Ltd | Wholesale & retail | 2022 |
| North West Cable Jointing Limited | Professional & scientific | 2024 |
| North West Chess Ltd | Education | 2020 |
| North West Civils Consultants Ltd | Construction | 2024 |
| North West Cleaning Services Limited | Administrative & support | 2025 |
| North West Coaching Group Ltd | Professional & scientific | 2017 |
| North West Electrical Maintenance Ltd | Manufacturing | 2017 |
| North West Farms Ltd | Administrative & support | 2022 |
| North West Gateway Ltd | Wholesale & retail | 2021 |
| North West Ice Limited | Wholesale & retail | 2018 |
| North West Land Drains Ltd | Administrative & support | 2026 |
| North West Life Education Limited | Education | 1997 |
| North West Maintenance and Building Services Limited | Construction | 2017 |
| North West Polishing Ltd | Construction | 2015 |
| North West Rail, Civils & Construction Services Ltd | Construction | 2017 |
| North West Social Work Services Ltd | Health & social care | 2025 |
| North West Specialists Ltd | Wholesale & retail | 2022 |
| North West Structural Solutions Ltd | Construction | 2025 |
| North West Tree Consultancy Ltd | Extraterritorial | 2022 |
| North Yorkshire Leisure Ltd | Hospitality | 2022 |
| North-West Excavations & Plant Hire Ltd | Construction | 2023 |