| NB Sanders Limited | Transport & logistics | 2010 |
| NBA Luxury Homes Ltd | Hospitality | 2024 |
| NBC Computing Services Ltd | Information & communication | 2018 |
| NBM Design & Marketing Ltd | Professional & scientific | 2018 |
| Nbnm Group Ltd | Wholesale & retail | 2024 |
| Nbom Ltd | Real estate | 2025 |
| NBR Pharma Limited | Health & social care | 2021 |
| NCJ Network Communications Limited | Other services | 2005 |
| NCK Autos Ltd | Wholesale & retail | 2013 |
| NCK Motors Limited | Wholesale & retail | 2014 |
| Ncpf Limited | Agriculture & fishing | 2015 |
| NCT Group Limited | Financial services | 2019 |
| Nczk Trans Ltd | Transport & logistics | 2025 |
| ND and J Taylor Developers Limited | Construction | 2018 |
| ND Cowling TA Cowling Brothers Limited | Transport & logistics | 2022 |
| ND Tyres Ltd | Wholesale & retail | 2021 |
| NDF Properties Limited | Real estate | 2019 |
| NDH Plumbing Services Limited | Construction | 2018 |
| Ndima Healthcare Ltd | Administrative & support | 2019 |
| Ndima Ltd | Administrative & support | 2022 |
| NDK Weld Ltd | Manufacturing | 2018 |
| NDR Consulting Ltd | Professional & scientific | 2020 |
| NDS Food Holdings Limited | Professional & scientific | 2001 |
| NE Digital Ltd | Wholesale & retail | 2025 |
| Nead Carrier Ltd | Transport & logistics | 2019 |
| Nearo Events Limited | Arts & recreation | 2024 |
| Neat Wheels Detailing Limited | Wholesale & retail | 2019 |
| Neat&Clean Houses Ltd | Real estate | 2025 |
| Neatnest Cleaning Solutions Ltd. | Administrative & support | 2026 |
| NEB Property Investments Ltd | Real estate | 2024 |
| Nectar Distribution Ltd | Wholesale & retail | 2014 |
| Nectar Food Limited | Wholesale & retail | 2010 |
| Nectar Huntingdon Ltd | Wholesale & retail | 2019 |
| Neda Peterborough Ltd | Hospitality | 2023 |
| Needham Court Management Company Limited | Real estate | 2008 |
| Needham Pallets Limited | Wholesale & retail | 2018 |
| Needmet Care Ltd | Health & social care | 2021 |
| Neelam Blue Sapphire Limited | Administrative & support | 2025 |
| Neelax Pizzario Ltd | Hospitality | 2023 |
| Neeli Investment Group Ltd | Real estate | 2025 |
| Neesaq Ltd | Real estate | 2024 |
| Nefretete Shop UK Ltd | Wholesale & retail | 2025 |
| Negotium Maximus Ltd | Wholesale & retail | 2025 |
| Negus Developments Ltd | Construction | 2019 |
| Neidastravel Ltd | Transport & logistics | 2018 |
| Neil Aylin Ltd | Information & communication | 2023 |
| Neil Parmenter Contractors Limited | Construction | 2009 |
| Neil's Plant Holdings Limited | Administrative & support | 2009 |
| Neil's Plant Limited | Administrative & support | 2009 |
| Neishy’Shealthcare Ltd | Public administration | 2022 |
| NEJ Electrical Limited | Construction | 2023 |
| Nella Brickwork Ltd | Construction | 2023 |
| Nellcote Limited | Information & communication | 2017 |
| Nelson Alves & Co Ltd | Wholesale & retail | 2025 |
| Nelu&Transport Limited | Transport & logistics | 2020 |
| Nemo Motors Ltd | Wholesale & retail | 2023 |
| NEMS24 Health Care Limited | Administrative & support | 2022 |
| Nena Community Care and Support Hub Limited | Public administration | 2024 |
| Nene Anglers Fishing Club Ltd | Agriculture & fishing | 2026 |
| Nene Builders Ltd | Construction | 2024 |
| Nene Charter Company Limited | Wholesale & retail | 1994 |
| Nene Construction Management Services Ltd | Professional & scientific | 1996 |
| Nene Construction Safety Limited | Extraterritorial | 2019 |
| Nene Engineering (Peterborough) Limited | Manufacturing | 1974 |
| Nene Fencing Ltd | Administrative & support | 2019 |
| Nene Fitch Ltd | Professional & scientific | 2015 |
| Nene GAS Ltd | Construction | 2015 |
| Nene JAG Specialists Limited | Wholesale & retail | 1997 |
| Nene Meadows Management Company Limited | Households | 1998 |
| Nene Mills Ltd | Hospitality | 2026 |
| Nene Outdoors Limited | Arts & recreation | 2016 |
| Nene Overland SV Ltd | Wholesale & retail | 2022 |
| Nene Park Services Limited | Wholesale & retail | 2015 |
| Nene Park Trust | Arts & recreation | 1988 |
| Nene Projects Limited | Construction | 2023 |
| Nene Rubber & Plastics Limited | Manufacturing | 1981 |
| Nene Terrace Auctions Limited | Wholesale & retail | 2025 |
| Nene Valley Boats LLP | | 2008 |
| Nene Valley Body Repairs Ltd | Wholesale & retail | 2023 |
| Nene Valley Brewery Limited | Manufacturing | 2011 |
| Nene Valley Classics Ltd | Wholesale & retail | 2023 |
| Nene Valley Construction Limited | Construction | 2020 |
| Nene Valley Day Nursery Ltd | Education | 2011 |
| Nene Valley Holdings Limited | Financial services | 2020 |
| Nene Valley Properties Limited | Real estate | 2020 |
| Nene Valley Pure Skin Ltd | Other services | 2022 |
| Nene Valley Races CIC | Arts & recreation | 2023 |
| Nene Valley Railway Enterprises Limited | Wholesale & retail | 1993 |
| Nene Valley Transport Planning Consultants Ltd | Professional & scientific | 2022 |
| Nene Valley Tree Services Limited | Other services | 2018 |
| Nene Window Cleaning Ltd | Administrative & support | 2025 |
| Nenex Law Ltd | Professional & scientific | 2015 |
| NEO Funding Ltd | Financial services | 2019 |
| Neobook Ltd | Hospitality | 2025 |
| Neobuild Innovations Limited | Construction | 2024 |
| Neon Goblin Games Limited | Information & communication | 2026 |
| Neon Nights Ltd | Real estate | 2026 |
| Neon Road Holdings Ltd | Financial services | 2026 |
| Neon Road Ltd | Real estate | 2021 |
| NEP Creatives Limited | Professional & scientific | 2025 |