| Noah Caluori Rights Ltd | Arts & recreation | 2026 |
| Noble Digi Ltd | Public administration | 2020 |
| Noble Housing Trading Ltd | Hospitality | 2020 |
| Noblecert International Ltd | Professional & scientific | 2025 |
| Nodehill Ltd | Real estate | 2026 |
| Nodewell Farm IW Limited | Agriculture & fishing | 2025 |
| Noel Fitzpatrick Limited | Construction | 1978 |
| Noel Software Solutions Limited | Information & communication | 2024 |
| Nomad (IOW) Limited | Real estate | 2024 |
| Nomad Action Consultancy and Design Limited | Other services | 2013 |
| Nomad Property (IOW) Limited | Real estate | 2026 |
| Nombox Newport Ltd | Hospitality | 2024 |
| Nonsuch Estate Ltd | Real estate | 2023 |
| Noodle Boilers & Renovations Ltd | Construction | 2025 |
| Noodle Box Media Ltd | Information & communication | 2023 |
| Noodle Housing & Renovations Ltd | Real estate | 2022 |
| Noor Estates Ltd | Construction | 2013 |
| Noorazeen Limited | Transport & logistics | 2024 |
| Norah Rose Limited | Professional & scientific | 2023 |
| Nordic Garden Buildings Limited | Extraterritorial | 2013 |
| Nordic PVC Ltd | Extraterritorial | 2005 |
| Nordic Sauna’S Limited | Manufacturing | 2026 |
| Nordic-Baltic Touring Limited | Administrative & support | 2016 |
| North Fairlee Transfer Station Ltd | Water & waste | 2024 |
| North Lynn Ltd | Agriculture & fishing | 2005 |
| North Somerset Heritage Trust | Transport & logistics | 1993 |
| North Somerset Railway C.I.C. | Transport & logistics | 1989 |
| North Street Bar and Grill Ltd | Hospitality | 2019 |
| North West Recovery Ltd | Administrative & support | 2023 |
| Northcourt Estates Limited | Administrative & support | 2000 |
| Northdale Services Limited | Real estate | 1996 |
| Northeven Limited | Information & communication | 2012 |
| Northgate Sales and Lettings Ltd | Real estate | 2026 |
| Northicote Management Company Limited | Households | 2000 |
| Northshoreuk Ltd | Wholesale & retail | 2023 |
| Northspring Health & Education Limited | Education | 2026 |
| Norton Residential Limited | Construction | 2011 |
| Norvate Limited | Professional & scientific | 2024 |
| Norwood House Hotel Limited | Hospitality | 2015 |
| NOS DA Bakery Ltd | Manufacturing | 2017 |
| Nosy Consultancy Ltd | Information & communication | 2018 |
| Notebook Money Limited | Financial services | 2019 |
| Nova Cars Holdings Limited | Real estate | 2009 |
| Nova Cars Limited | Wholesale & retail | 2009 |
| Nova Consultancy Services Ltd | Administrative & support | 2017 |
| Nova Derma Medical and Aesthetic Centre Ltd | Health & social care | 2026 |
| Nova Fire Solutions Ltd | Extraterritorial | 2025 |
| Nova GEO Consulting Ltd | Professional & scientific | 2022 |
| Nova Taxis Holdings Ltd | Transport & logistics | 2024 |
| Nova Tonkin Limited | Wholesale & retail | 2019 |
| Nova Vitis Ltd | Professional & scientific | 2024 |
| Novaboard Limited | Manufacturing | 2021 |
| Novaportan Properties Ltd | Real estate | 2025 |
| Novascope I.T. Limited | Wholesale & retail | 2001 |
| Novastruct Projects Ltd | Construction | 2024 |
| Noventra Labs Ltd | Information & communication | 2026 |
| Noveris Ltd | Wholesale & retail | 2024 |
| Novira Technologies Limited | Information & communication | 2024 |
| Novomorphic Limited | Professional & scientific | 2025 |
| NP Barbers Ltd | Other services | 2024 |
| NP Entertainment Ltd | Hospitality | 2019 |
| NP Import Ltd | Other services | 2016 |
| NP Indian Ltd | Hospitality | 2019 |
| NP Linnells LLP | | 2009 |
| NP Residential LLP | | 2009 |
| NP10 Limited | Real estate | 2025 |
| NP10 Logs Ltd | Wholesale & retail | 2026 |
| NP20 Estates Limited | Real estate | 2016 |
| NP20 Investments Ltd | Financial services | 2020 |
| NP20 Scaffolding & Roofing Ltd | Construction | 2023 |
| NP205 Ltd | Hospitality | 2025 |
| NPT Desserts Ltd | Manufacturing | 2024 |
| NPT Local Ltd | Wholesale & retail | 2016 |
| NPT Ventures Ltd | Hospitality | 2025 |
| NR Woodalls Ltd | Wholesale & retail | 2020 |
| NRG Business Services Ltd | Professional & scientific | 2022 |
| Nritya Events Ltd | Hospitality | 2025 |
| NS Spice House Ltd | Hospitality | 2022 |
| NSC Express Limited | Transport & logistics | 2020 |
| Nslw Ltd | Information & communication | 2020 |
| NTB Properties Ltd | Real estate | 2025 |
| Nthe Limited | Information & communication | 2017 |
| NTL Renovations Ltd | Construction | 2017 |
| NTR Sports Ltd | Arts & recreation | 2024 |
| NTS Newone Ltd | Transport & logistics | 2025 |
| NTS SDQ Ltd | Transport & logistics | 2025 |
| Nts-Umer Ltd | Transport & logistics | 2026 |
| Nucleus (Bristol) Ltd | Professional & scientific | 2017 |
| Nucleus Newport Limited | Administrative & support | 2015 |
| Number 59 Productions Ltd | Information & communication | 2015 |
| Number 8 Lettings Ltd | Real estate | 2024 |
| Number One Property Developments Limited | Real estate | 2025 |
| Number One Property Management Ltd | Real estate | 2018 |
| Number One Real Estate Ltd | Real estate | 2016 |
| Numeris Limited | Information & communication | 2012 |
| Nunwell Farm Kitchen Ltd | Wholesale & retail | 2024 |
| Nursery Book Ltd | Information & communication | 2013 |
| Nutra Edge Ltd | Wholesale & retail | 2024 |
| Nutraway Systems Limited | Wholesale & retail | 2015 |
| Nutrient Neutral Ltd | Professional & scientific | 2021 |