| Norton College (Worcester) Limited | Education | 2010 |
| Norton Plumbing Services Limited | Construction | 2018 |
| Norton Stratton Limited | Administrative & support | 2017 |
| Nortonspire Limited | Arts & recreation | 1980 |
| Norven IPA Limited | Information & communication | 2024 |
| Norwood Estates NW Ltd | Real estate | 2019 |
| Noshentertainment Ltd | Information & communication | 2024 |
| Nostek Ltd | Extraterritorial | 2021 |
| NOT Standard Limited | Other services | 2023 |
| Notay Properties Ltd | Real estate | 2023 |
| Notb Ltd | Administrative & support | 2022 |
| Note Weavers CIC | Education | 2019 |
| Nothing BAD Ltd | Information & communication | 2023 |
| Notus Group Limited | Professional & scientific | 2018 |
| Noub Ltd | Wholesale & retail | 2025 |
| Noura OUD Ltd | Wholesale & retail | 2026 |
| Nourished Words Limited | Administrative & support | 2017 |
| Nova Auto Group Ltd | Wholesale & retail | 2025 |
| Nova Clients Solutions Ltd | Administrative & support | 2024 |
| Nova Navitas Limited | Health & social care | 2021 |
| Nova Product Consultancy Ltd | Professional & scientific | 2021 |
| Nova Reaction Limited | Information & communication | 2026 |
| Nova Sixtus Properties Ltd | Real estate | 2020 |
| Nova Step Limited | Professional & scientific | 2026 |
| Nova Vault Limited | Wholesale & retail | 2025 |
| Nova Whitefield Limited | Real estate | 2026 |
| Novaconstructors@Hotmail.Com Ltd | Construction | 2026 |
| Novaflow Limited | Construction | 2017 |
| Novamair Limited | Wholesale & retail | 2026 |
| NOVAMART04112025 Ltd | Wholesale & retail | 2025 |
| Novaqa Ltd | Professional & scientific | 2026 |
| Novara International Ltd | Wholesale & retail | 2025 |
| Novara Pet Limited | Wholesale & retail | 2025 |
| Novaro Property Management Ltd | Households | 2026 |
| Novatel Money Transfer and Telecom General Trading Ltd | Administrative & support | 2025 |
| Novello Healthcare Limited | Administrative & support | 2021 |
| Novelty Properties Limited | Real estate | 2020 |
| Novetium Ltd | Administrative & support | 2021 |
| Novo Bluemantle Ltd | Financial services | 2024 |
| Novo Finds Ltd | Wholesale & retail | 2024 |
| Novo MEP Limited | Construction | 2021 |
| Novus Arts Ltd | Information & communication | 2020 |
| Nowbench Ltd | Information & communication | 2022 |
| Nowskills Limited | Administrative & support | 2013 |
| Noxtura Ltd | Wholesale & retail | 2026 |
| Nozza Ltd | Real estate | 2024 |
| NP92 IT Company Ltd | Wholesale & retail | 2018 |
| NPH Live Ltd | Professional & scientific | 2023 |
| NPJ Developments Ltd | Construction | 2022 |
| NPN Retail Ltd | Wholesale & retail | 2019 |
| NQ Construction & Heating Limited | Construction | 2018 |
| NQF (Bolton) Limited | Wholesale & retail | 2012 |
| NR Recovery Services Limited | Transport & logistics | 2024 |
| NRC Group Limited | Financial services | 2022 |
| Nrex Ltd | Wholesale & retail | 2024 |
| NRF Supplies Ltd | Wholesale & retail | 2026 |
| NRG Analysis Ltd | Public administration | 2025 |
| NRG Haulage Ltd | Transport & logistics | 2025 |
| Nrjlf Limited | Real estate | 2024 |
| NRN Design Limited | Professional & scientific | 1998 |
| Nrnj Solutions Limited | Information & communication | 2017 |
| NRS Corporate Limited | Wholesale & retail | 2002 |
| NRS Developments (Buckingham Palace Road London) Limited | Construction | 2018 |
| NRS International Limited | Wholesale & retail | 2008 |
| Nrtutoring Ltd | Education | 2024 |
| Nrzkm Investments Limited | Real estate | 2023 |
| Nrzkm Limited | Professional & scientific | 2020 |
| NS Building Maintenance Ltd | Construction | 2024 |
| NS Consulting Group Limited | Professional & scientific | 2019 |
| NS Costings Limited | Professional & scientific | 2018 |
| NS Diagnostics Ltd | Health & social care | 2024 |
| NS Investco Limited | Financial services | 2024 |
| NS Motors Northwest Ltd | Wholesale & retail | 2022 |
| NS Propco Limited | Real estate | 2025 |
| NS Properties 2016 Ltd | Real estate | 2016 |
| NS Resource Group Limited | Professional & scientific | 2016 |
| NS Studio Group Ltd | Manufacturing | 2026 |
| NS Transport Solutions Ltd | Transport & logistics | 2025 |
| Nscuk Ltd | Education | 2025 |
| NSI Pharm Ltd | Health & social care | 2025 |
| NSJ Imports Ltd | Wholesale & retail | 2026 |
| Nsmfz Trading Limited | Wholesale & retail | 2025 |
| NSO Holdings Limited | Financial services | 2025 |
| NSR IT Limited | Information & communication | 2023 |
| Nsukaminihealthcare Ltd | Health & social care | 2022 |
| NT Electrical Solutions Limited | Construction | 2011 |
| NT Pro Property Ltd | Real estate | 2025 |
| NTH Investment Ltd | Real estate | 2024 |
| NTI Development Limited | Real estate | 2024 |
| NTI Properties Limited | Real estate | 2023 |
| NU ME Supplements Ltd | Information & communication | 2017 |
| NU Solutions Limited | Wholesale & retail | 2023 |
| NU Stile Limited | Construction | 2006 |
| Nu-Line Vehicle Repairs Limited | Wholesale & retail | 2019 |
| Nu-Nique Limited | Administrative & support | 2015 |
| Nu-Tac Trade Label Services Limited | Manufacturing | 1985 |
| Nuclae Ltd | Wholesale & retail | 2025 |
| Nuclear Risk Consulting Limited | Professional & scientific | 2020 |
| Nucleus Marketing Services Limited | Wholesale & retail | 1999 |
| Nudeclo Ltd | Wholesale & retail | 2026 |