| Northern Trade Windows (Manufacturers) Limited | Construction | 1994 |
| Northern Trade Windows (Pennines) Limited | Manufacturing | 1994 |
| Northern Travel Services Ltd | Transport & logistics | 2018 |
| Northerndent Ltd | Health & social care | 2013 |
| Northerneyegroup Ltd | Construction | 2025 |
| Northgate Barbers Ltd | Other services | 2019 |
| Northlea Investments Limited | Real estate | 2010 |
| Northlight Studios Limited | Professional & scientific | 2005 |
| Northmain Limited | Construction | 2004 |
| Northmark Search Ltd | Administrative & support | 2026 |
| Northpeak Properties Limited | Construction | 2020 |
| Northpoint Leadership CIC | Professional & scientific | 2025 |
| Northpointcarparts Ltd | Wholesale & retail | 2024 |
| Northpointcarpartsuk Ltd | Wholesale & retail | 2025 |
| Northshore Imports Limited | Wholesale & retail | 2025 |
| Northside Foodstore Limited | Wholesale & retail | 2023 |
| Northstar Scaffold Ltd | Administrative & support | 2016 |
| Northstone Builders Limited | Construction | 2025 |
| Northvale Works Limited | Hospitality | 2026 |
| Northway Vehicle Sales Ltd | Wholesale & retail | 2003 |
| Northwich Kitchens Cheshire Ltd | Manufacturing | 2021 |
| Norton Lounge Limited | Hospitality | 2024 |
| Norton Property Lettings Ltd | Real estate | 2023 |
| Norvex Group Ltd | Transport & logistics | 2026 |
| Norwich and Peterborough (LBS) Limited | Financial services | 1991 |
| Norwich House (Hull) Limited | Administrative & support | 2018 |
| Norwood Autos Limited | Wholesale & retail | 2009 |
| Norwood Enterprises Ltd | Administrative & support | 2017 |
| Norwood Projects Ltd | Real estate | 2017 |
| Norwood Properties Yorkshire Ltd | Real estate | 2024 |
| Norwood Shipley Limited | Real estate | 2020 |
| Noryas Limited | Wholesale & retail | 2025 |
| NOT in Range Limited | Professional & scientific | 2026 |
| NOT Just ANY Van Limited | Wholesale & retail | 2014 |
| NOT OUT Limited | Hospitality | 2019 |
| NOT Shut Surelock Ltd | Administrative & support | 2018 |
| Notorious Burger & Desserts Limited | Hospitality | 2023 |
| Notorious Detailers Ltd | Wholesale & retail | 2020 |
| Nottingham Prestige Cleaning Services Ltd | Professional & scientific | 2020 |
| Nourisha Limited | Wholesale & retail | 2025 |
| Nous Healthcare Limited | Health & social care | 2018 |
| Nova a Group Ltd | Wholesale & retail | 2019 |
| Nova Automotive Limited | Wholesale & retail | 2024 |
| Nova Cafe Ltd | Hospitality | 2026 |
| Nova Local Ltd | Financial services | 2026 |
| Nova Local Southfield Ltd | Wholesale & retail | 2026 |
| Nova Retailers Ltd | Wholesale & retail | 2026 |
| Nova Sofa Ltd | Wholesale & retail | 2023 |
| Nova Travel & Transfers Ltd | Transport & logistics | 2023 |
| Nova Wholesale Supplies Ltd | Wholesale & retail | 2022 |
| Novabloom Solutions Ltd | Information & communication | 2024 |
| Novac Care Limited | Health & social care | 2025 |
| Novacore Research Consult Ltd | Professional & scientific | 2026 |
| Novadatos Ltd | Information & communication | 2024 |
| Novajo Global Gateway Ltd | Wholesale & retail | 2026 |
| Novara Accounting Ltd | Professional & scientific | 2026 |
| Novare Labs Ltd | Professional & scientific | 2025 |
| Novaterra Group Ltd | Construction | 2025 |
| Novavanto Commerce Ltd | Wholesale & retail | 2026 |
| Novelia Limited | Wholesale & retail | 2026 |
| Noveltyshopinc Ltd | Extraterritorial | 2024 |
| Novo AI Ltd | Wholesale & retail | 2023 |
| Novus PAY Limited | Information & communication | 2018 |
| Nowco Yorks Ltd | Wholesale & retail | 2017 |
| Noyan Digital Limited | Wholesale & retail | 2024 |
| Npif II - Smaller Loans YH LP | | 2024 |
| Npif Yhtv Microfinance LP | | 2017 |
| Nplas Ltd | Construction | 2025 |
| NPP Haulage Ltd | Transport & logistics | 2019 |
| NPS Bradford Limited | Extraterritorial | 2012 |
| NPS Engineering Group Limited | Financial services | 2016 |
| NPS Fabrications Limited | Manufacturing | 2012 |
| NPS GRP Limited | Manufacturing | 2012 |
| NPS Pumps Limited | Extraterritorial | 2013 |
| NPS Systems Limited | Extraterritorial | 2013 |
| NQV Care Limited | Health & social care | 2025 |
| NR Building Service Limited | Construction | 2016 |
| NR Logistics Ltd | Wholesale & retail | 2021 |
| NRB Computech Limited | Information & communication | 1998 |
| NRB Enterprises Limited | Extraterritorial | 2012 |
| Nrwd Ltd | Wholesale & retail | 2026 |
| NS Beauty & Training Ltd | Other services | 2023 |
| NS Elite Holdings Ltd | Financial services | 2026 |
| NS Financials Services Ltd | Professional & scientific | 2024 |
| NS Locums Ltd | Wholesale & retail | 2021 |
| NS Pharm Locum Ltd | Health & social care | 2025 |
| NS Proclean Ltd | Administrative & support | 2026 |
| NSG Systems Ltd | Manufacturing | 2019 |
| Nshs Properties Limited | Hospitality | 2025 |
| NSK Graphics Ltd | Manufacturing | 2025 |
| NSK Manufacturing Limited | Professional & scientific | 2020 |
| NSM Pharma Ltd | Wholesale & retail | 2023 |
| NSP Financial Services Limited | Financial services | 2005 |
| NT Heights Limited | Health & social care | 2020 |
| NT Just Mortgages Ltd | Financial services | 2025 |
| NTG Services Limited | Administrative & support | 2024 |
| NTG SPV 2 Limited | Financial services | 2025 |
| NTG SPV 3 Limited | Financial services | 2025 |
| NTG SPV 4 Limited | Financial services | 2025 |
| NTK Enterprise Ltd | Extraterritorial | 2022 |