| Myrightway Ltd | Professional & scientific | 2026 |
| Myscrimp Ltd | Wholesale & retail | 2021 |
| MYSPA95 Limited | Other services | 2016 |
| Mysterious Rose Limited | Professional & scientific | 2018 |
| Mystic Hair and Beauty Salon Limited | Other services | 2025 |
| Mystic Masala Limited | Hospitality | 2022 |
| Mystic Recruitment Limited | Professional & scientific | 2024 |
| Mystique Masala Restaurant Limited | Hospitality | 2010 |
| Mytaxfile Ltd | Professional & scientific | 2026 |
| Mytri Limited | Health & social care | 2012 |
| MZ Electric City Solutions Ltd | Manufacturing | 2020 |
| MZ Housing Ltd | Wholesale & retail | 2015 |
| MZ Online Sales Ltd | Wholesale & retail | 2021 |
| MZ Rags Ltd | Wholesale & retail | 2012 |
| MZ Residential Limited | Real estate | 2022 |
| MZA Holdings Limited | Real estate | 2022 |
| N & G Contractors Ltd | Construction | 2005 |
| N & J Professionals Ltd | Professional & scientific | 2011 |
| N & N Enterprises International Ltd | Professional & scientific | 2025 |
| N & P Accounting Solutions Limited | Professional & scientific | 1990 |
| N and R Karnani Trust | Other services | 2019 |
| N B Subs & Co LLP | | 2006 |
| N by Noor Ltd. | Wholesale & retail | 2021 |
| N C S Engineering Consulting Limited | Professional & scientific | 2012 |
| N F H Limited | Information & communication | 1978 |
| N J Independence Limited | Health & social care | 2005 |
| N K Brothers Ltd | Hospitality | 2017 |
| N Locum Limited | Health & social care | 2020 |
| N M a Logistic Services Ltd | Wholesale & retail | 2017 |
| N N Sedation Services Limited | Education | 2020 |
| N O Donovan Formwork Ltd | Construction | 2016 |
| N of Three Limited | Health & social care | 2023 |
| N S Karann Ltd | Transport & logistics | 2023 |
| N T Plumbing and Heating Ltd | Construction | 2017 |
| N Technik (UK) Ltd | Information & communication | 2016 |
| N York Bakers Ltd | Wholesale & retail | 2021 |
| N&B Project Ltd | Construction | 2019 |
| N&D Surfacing Ltd | Construction | 2026 |
| N&Dy Ltd | Transport & logistics | 2023 |
| N&H Chopra Properties Limited | Real estate | 2022 |
| N&H Consulting Ltd | Professional & scientific | 2010 |
| N&I Finance Limited | Professional & scientific | 2018 |
| N&P Estates Ltd | Construction | 2022 |
| N&P Leasehold Limited | Real estate | 2024 |
| N&P Network Ltd | Transport & logistics | 2021 |
| N&R Hospitality Ltd | Hospitality | 2025 |
| N-Invest Ltd | Real estate | 2011 |
| N.A. S. Investments Limited | Transport & logistics | 1953 |
| N.Deal & Sons Limited | Wholesale & retail | 1973 |
| N.G.N. Consulting Limited | Information & communication | 2007 |
| N.J. Trustee Company Limited | Administrative & support | 2016 |
| N.L. Drylining Ltd | Construction | 2010 |
| N.N.Dev Consultancy Ltd | Construction | 2015 |
| N.P Quantity Surveying Ltd | Construction | 2023 |
| N.R.P. (Export-Import) Limited | Wholesale & retail | 1983 |
| N.U.R.V. Engineering Ltd | Professional & scientific | 2015 |
| N17 Club Ltd | Wholesale & retail | 2022 |
| N2 Technology Consulting Ltd | Information & communication | 2023 |
| N33 Ltd | Wholesale & retail | 2026 |
| N3S Investments Ltd | Real estate | 2019 |
| N4 Ventures Limited | Health & social care | 2026 |
| N6B LLP | | 2024 |
| N7 Advisory Limited | Professional & scientific | 2024 |
| N800JAN Properties Limited | Real estate | 2024 |
| Naad Consultancy Ltd | Information & communication | 2018 |
| Naala's House CIC | Public administration | 2024 |
| Naan Chai Harrow Limited | Hospitality | 2025 |
| Naban Holding Limited | Financial services | 2023 |
| Nabi Mini Supermarket Ltd | Administrative & support | 2017 |
| Nabi-E-Akram Foundation Ltd | Professional & scientific | 2021 |
| Nachiyar Limited | Administrative & support | 2016 |
| Nada Holdings Ltd | Real estate | 2021 |
| Nadac Limited | Professional & scientific | 2005 |
| Naday Limited | Real estate | 2017 |
| Nadejde GA Ltd | Transport & logistics | 2026 |
| Nadery Limited | Real estate | 2025 |
| Nadhi Trading Limited | Wholesale & retail | 2024 |
| Nadine Yachting Ltd | Transport & logistics | 2023 |
| Nadir ALI Limited | Wholesale & retail | 2024 |
| Naeem and Associates Limited | Professional & scientific | 2008 |
| Naga Rani Ltd | Administrative & support | 2022 |
| Nagar Investments Ltd | Real estate | 2024 |
| Nagarro Software Ltd | Information & communication | 2014 |
| Nagaya Capital Management Limited | Real estate | 2019 |
| Nagi Jewellers Limited | Wholesale & retail | 2001 |
| Nagi Properties Limited | Real estate | 2015 |
| Nagle Flooring Limited | Wholesale & retail | 2005 |
| Nagle James Associates Limited | Professional & scientific | 2001 |
| Nagle James Financial Planning Limited | Financial services | 2001 |
| Nahan & Co Ltd | Real estate | 2024 |
| Nahid Realty Limited | Real estate | 2024 |
| Naiades Limited | Information & communication | 2015 |
| Nail & Beauty Studio Ltd | Other services | 2022 |
| Nail Stop Limited | Other services | 2014 |
| Nail World Ltd | Other services | 2026 |
| Nails 2 Cocktails Ltd | Hospitality | 2026 |
| Nailtex Ltd | Wholesale & retail | 2011 |
| Naina Mistry Limited | Health & social care | 2006 |
| Nairz Limited | Real estate | 2017 |
| Naish & Moots Ltd | Real estate | 2021 |