| New Century Chauffeurs Limited | Transport & logistics | 2017 |
| New Century Productions Limited | Information & communication | 2026 |
| New Cloud Metrics Ltd | Information & communication | 2019 |
| New Day Same Pain Ltd | Wholesale & retail | 2022 |
| New Destination Properties Ltd | Real estate | 2025 |
| New Energy 33 Ltd | Information & communication | 2020 |
| New English Limited | Financial services | 1983 |
| New English Poole Limited | Real estate | 1996 |
| New Family Ltd | Other services | 2026 |
| New Fields Management Limited | Real estate | 1996 |
| New Forest Cardiology Ltd | Health & social care | 2019 |
| New Forest Farriery Practice Limited | Professional & scientific | 2013 |
| New Forest First AID Training Ltd | Administrative & support | 2024 |
| New Forest Metalwork Limited | Construction | 2014 |
| New Forest Pharmacy Limited | Wholesale & retail | 2007 |
| New Forest Residential Estates Limited | Real estate | 2009 |
| New Harbour Properties Limited | Real estate | 2012 |
| New Horizon Recruitment Ltd | Health & social care | 2014 |
| New Horizons Property Investments Ltd | Real estate | 2022 |
| New Kitchen Chinese Ltd | Hospitality | 2025 |
| New Kitchen Parkstone Ltd | Hospitality | 2020 |
| New Leaf Enviro Ltd | Administrative & support | 2025 |
| New Shore Properties Ltd | Real estate | 2016 |
| New Star Pizza Ltd | Hospitality | 2025 |
| New Town Spares UK Ltd | Wholesale & retail | 2023 |
| New Venture Support Solutions Ltd | Administrative & support | 2026 |
| New Way Property Management Limited | Real estate | 1987 |
| New Yacht Club Limited | Arts & recreation | 1936 |
| New Yolk Limited | Administrative & support | 2016 |
| New YOU Public Relations Limited | Professional & scientific | 2010 |
| Newbie Nation Limited | Arts & recreation | 2021 |
| Newbury Park Property Ventures Limited | Real estate | 2018 |
| Newbusiness.Dev Ltd | Professional & scientific | 2011 |
| Newfield Freehold Limited | Real estate | 2016 |
| Newneekmarine Ltd | Manufacturing | 2026 |
| Newsek Limited | Information & communication | 2019 |
| Newton and Young Limited | Wholesale & retail | 2022 |
| Newton Electrical Engineering Ltd | Manufacturing | 2023 |
| Newton House Limited | Households | 1987 |
| Newton Riste Ltd | Education | 2024 |
| Nexa Medical Limited | Manufacturing | 2015 |
| Nexa Printers Ltd | Administrative & support | 2025 |
| Nexabuy Art Trade Ltd | Wholesale & retail | 2026 |
| Nexium Nova Ltd | Professional & scientific | 2025 |
| Nexstay Ltd | Real estate | 2025 |
| Next Level BR Ltd | Wholesale & retail | 2025 |
| Next Level Consultants Ltd | Professional & scientific | 2025 |
| Next Level Design Studio Limited | Information & communication | 2022 |
| Next Society Corporation Ltd | Information & communication | 2026 |
| Nexthire Ltd | Transport & logistics | 2025 |
| Nextmart Ltd | Wholesale & retail | 2024 |
| Nextstep Property Consulting Ltd | Professional & scientific | 2025 |
| Nexttouch Ltd | Information & communication | 2025 |
| Nextwave Technologies Ltd | Information & communication | 2020 |
| Nexus PR Ltd | Professional & scientific | 2024 |
| Nexus Theory Limited | Information & communication | 2026 |
| Nexxie Ltd | Wholesale & retail | 2025 |
| Neyros Limited | Wholesale & retail | 2021 |
| NEZ Portsmouth Ltd | Wholesale & retail | 2026 |
| NF Bespoke Ltd | Construction | 2021 |
| NF2 Limited | Information & communication | 2022 |
| NFI Electrical Ltd | Construction | 2023 |
| NFL Inc Limited | Wholesale & retail | 2022 |
| Nftrees Ltd | Information & communication | 2021 |
| NG Catering Ltd | Hospitality | 2024 |
| NGB Software Consulting Limited | Information & communication | 2016 |
| Nguu Homes Ltd | Real estate | 2026 |
| Nguyen Minh DUC Ltd | Wholesale & retail | 2026 |
| NHA Carehomes Ltd | Health & social care | 2020 |
| Nharo Ltd | Mining & quarrying | 2021 |
| Nhdc Ltd | Professional & scientific | 1996 |
| NHH Consultancy Limited | Professional & scientific | 2024 |
| NI Property Explorer Ltd | Information & communication | 2026 |
| Nias Studio Limited | Arts & recreation | 2026 |
| Nicest Pint Steventon Ltd | Hospitality | 2025 |
| Nick Colman S&Geo Ltd | Professional & scientific | 2025 |
| Nick G Ltd | Information & communication | 2014 |
| Nick Hector Engineering Limited | Extraterritorial | 2018 |
| Nick Phelps Homes Limited | Construction | 2016 |
| Nick Thompson Sailing Limited | Arts & recreation | 2012 |
| Nickcare Ltd | Wholesale & retail | 2025 |
| Nicki Leaper Coaching Ltd | Professional & scientific | 2019 |
| Nickthefish Ltd | Hospitality | 2015 |
| Nicola O'Mara Interior Design Limited | Construction | 1988 |
| Nidor Bodyworks Limited | Wholesale & retail | 2012 |
| Nifa Ltd | Administrative & support | 2017 |
| Nightcroft Ltd | Information & communication | 2025 |
| Nightingale Worldwide Limited | Construction | 2018 |
| Nightjar Close 1965 Limited | Extraterritorial | 2014 |
| Nightjar Tech Ltd | Administrative & support | 2016 |
| Nightshade Clothing Limited | Wholesale & retail | 2023 |
| Nightway Express Ltd | Transport & logistics | 2016 |
| Nihao Chinese Takeaway Ltd | Hospitality | 2021 |
| Nikita Universe Ltd | Transport & logistics | 2019 |
| Nimsdai Academy Ltd | Education | 2024 |
| Nimsdai Apparel Ltd | Wholesale & retail | 2023 |
| Nimso Limited | Financial services | 2023 |
| Nimso Studios Ltd | Information & communication | 2023 |
| Nine Bankside Ltd | Construction | 2018 |
| Nine Bears Ltd | Information & communication | 2016 |