| Nexus Catering Ltd | Hospitality | 2025 |
| Nexus Construction 1 Ltd | Construction | 2025 |
| Nexus Motors Ltd | Wholesale & retail | 2021 |
| Nexus Options Limited | Information & communication | 2022 |
| Nexus Property Management Co. Ltd | Real estate | 2021 |
| Nexus Recruitment Agency Ltd | Administrative & support | 2024 |
| Nexus Transport Link Ltd | Transport & logistics | 2024 |
| Nexusbridge Consulting Ltd | Professional & scientific | 2023 |
| Nfaesthetics Ltd | Other services | 2022 |
| NFE Solutions Ltd | Wholesale & retail | 2026 |
| NFPBM390 Ltd | Wholesale & retail | 2024 |
| NG Mandal Limited | Health & social care | 2011 |
| NGC Electrical Ltd | Manufacturing | 2024 |
| Ngondu Limited | Wholesale & retail | 2021 |
| NGS Auto Care Ltd | Wholesale & retail | 2025 |
| NGT Construction Limited | Construction | 2026 |
| Nguyen Property Developments Limited | Real estate | 2009 |
| Nhagonahte Ltd | Transport & logistics | 2026 |
| Ni.Kaz Supplies Ltd | Wholesale & retail | 2018 |
| Nicalin Ltd | Wholesale & retail | 2026 |
| Nice Swan Recordings Limited | Arts & recreation | 2020 |
| Niche Care (Holdings) Ltd | Health & social care | 2018 |
| Niche Care Limited | Health & social care | 2014 |
| Niche Netball Limited | Wholesale & retail | 2025 |
| Nicholas and George Transport Ltd | Transport & logistics | 2017 |
| Nicholas Bray & SON (2008) Limited | Manufacturing | 2008 |
| Nicholas Tims Limited | Administrative & support | 2012 |
| Nick Collett Consulting Limited | Professional & scientific | 2017 |
| Nick Lingris Limited | Professional & scientific | 2017 |
| Nick Scali Furniture Limited | Wholesale & retail | 2024 |
| Nick Scali Holdings (UK) Limited | Financial services | 2024 |
| Nicki J'S Commercial Ltd | Administrative & support | 2024 |
| Nickk Logistics Ltd | Transport & logistics | 2023 |
| Nicodan Services Ltd | Administrative & support | 2017 |
| Nicodel Ltd | Transport & logistics | 2011 |
| Nicol Retailer Limited | Wholesale & retail | 2021 |
| Nicu Fast Trans Ltd | Transport & logistics | 2024 |
| Nicusor Demostene Limited | Transport & logistics | 2015 |
| Nidoc Limited | Other services | 2017 |
| Nifsa Limited | Wholesale & retail | 2024 |
| Nigel Miller & Associates Limited | Professional & scientific | 2011 |
| Nigel Morris Builders Limited | Construction | 2007 |
| Nigel Price Holdings Limited | Financial services | 2026 |
| Nightcycle Limited | Manufacturing | 2026 |
| Nightingale Consulting Services Ltd | Administrative & support | 2026 |
| Nightingale Farm Services (Whittlesey) Limited | Agriculture & fishing | 1965 |
| Nightingale Property Holdings Limited | Real estate | 2021 |
| Nightjar Distillery Ltd | Manufacturing | 2023 |
| Nigra Necis Records Ltd | Wholesale & retail | 2022 |
| Nihal Ltd | Real estate | 2019 |
| Nihalix Ltd | Wholesale & retail | 2026 |
| Nikah Services Limited | Professional & scientific | 2019 |
| Niko-Raf Limited | Transport & logistics | 2015 |
| Nikol&Rebeca Ltd | Hospitality | 2024 |
| Nikola Transport Ltd | Transport & logistics | 2016 |
| Nikron Assets Ltd | Real estate | 2026 |
| Nikron Properties Ltd | Real estate | 2026 |
| Nilsa Property Ltd | Real estate | 2021 |
| Ninam Logistics Ltd | Transport & logistics | 2018 |
| Nine Nails & Beauty Ltd | Other services | 2021 |
| Ning Mumbing Limited | Health & social care | 2021 |
| Ningi Limited | Information & communication | 2021 |
| Ninicru Limited | Administrative & support | 2012 |
| Ninnian Properties Limited | Real estate | 2014 |
| Niobrax Limited | Administrative & support | 2022 |
| NIP in Cash & Carry Ltd | Wholesale & retail | 2012 |
| Nipstr Global Ltd | Wholesale & retail | 2024 |
| Nirmal Matha Limited | Health & social care | 2016 |
| Niro Dressage Horses Ltd | Agriculture & fishing | 2024 |
| Niro Enterprises Ltd | Real estate | 2021 |
| Nirvansh Services Ltd | Wholesale & retail | 2025 |
| Nisa Network Ltd | Information & communication | 2020 |
| Nisa Property Ltd | Real estate | 2022 |
| Nisco Group Ltd | Professional & scientific | 2020 |
| Nishta Properties Limited | Real estate | 2025 |
| Nite Bite Desserts Ltd | Hospitality | 2024 |
| Nite Bite Ltd | Hospitality | 2016 |
| Nitrix Global Ltd | Wholesale & retail | 2020 |
| Niunis Limited | Transport & logistics | 2019 |
| Niva Properties Ltd | Real estate | 2021 |
| Nivedh Limited | Health & social care | 2021 |
| Nivella Investments Ltd | Real estate | 2021 |
| NIX Trailers Ltd | Manufacturing | 2026 |
| Nixin Ltd | Transport & logistics | 2018 |
| NJ Groundworks and Maintenance Limited | Construction | 2026 |
| NJ Groundworks Ltd | Manufacturing | 2020 |
| NJ Hamilton Limited | Construction | 2000 |
| NJ Motors Ltd | Wholesale & retail | 2026 |
| NJ Sports Wholesalers Ltd | Wholesale & retail | 2020 |
| NJB Accountancy Services Limited | Professional & scientific | 2014 |
| NJD Enterprises Ltd | Transport & logistics | 2006 |
| Njrkemp Ltd | Transport & logistics | 2019 |
| NJV Electrical Limited | Construction | 2014 |
| NKM Retail Ltd | Wholesale & retail | 2025 |
| Nkpromotions Limited | Health & social care | 2009 |
| NLB Construction Ltd | Construction | 2014 |
| Nlfo Group Ltd | Information & communication | 2023 |
| NLS FM Services Ltd | Administrative & support | 2005 |
| NM Creations Limited | Manufacturing | 2007 |
| NM Luxe Ltd | Manufacturing | 2025 |