| New Meaning Foundation | Education | 2012 |
| New Mermaid Limited | Hospitality | 2020 |
| New Mind Internet Consultancy Limited | Other services | 1998 |
| New Moon Restaurant Ltd | Hospitality | 2019 |
| New Path Molecular Research Ltd | Professional & scientific | 2015 |
| New Pinehurst Residents Association (Cambridge) Limited | Real estate | 1976 |
| New Probuild Construction Ltd | Construction | 2016 |
| New Road Impington Residents Association Limited | Households | 1964 |
| New Road Therapeutics Limited | Professional & scientific | 2021 |
| New Shilpa Ltd | Hospitality | 2024 |
| New Silk Road Energy Ltd | Professional & scientific | 2016 |
| New Suffolk Advisory Limited | Financial services | 2026 |
| New Suffolk Holdings Limited | Financial services | 2026 |
| New Vision Group Limited | Information & communication | 2004 |
| New Wave Concepts Limited | Information & communication | 1999 |
| New Wave Vibration Limited | Professional & scientific | 2018 |
| New Zealand Gene Chemical Co., Ltd | Wholesale & retail | 2024 |
| New Zealand Morheim Co., Ltd | Administrative & support | 2021 |
| Newbridge Network Services Ltd | Information & communication | 1998 |
| Newbury Media Group Limited | Information & communication | 2007 |
| Newbury News Limited | Information & communication | 1986 |
| Newbury Property News Limited | Information & communication | 1986 |
| Newbury Weekly News (Printers) Limited | Information & communication | 1968 |
| Newbury Weekly News Limited | Information & communication | 1968 |
| Newcastle Power Limited | Manufacturing | 2021 |
| Newcombe Property Investment Limited | Real estate | 2024 |
| Newcombe Property Solutions LLP | | 2021 |
| Newedge Signal Solutions UK Ltd | Information & communication | 2016 |
| Newforest Composites Ltd | Manufacturing | 2024 |
| Newin ERA Limited | Manufacturing | 2024 |
| Newleaf IT Limited | Information & communication | 2005 |
| Newlife Holdings Limited | Financial services | 2020 |
| Newman Construction (Cambridge) Ltd | Construction | 2014 |
| Newman Groundworks & Aggregates Ltd | Construction | 2023 |
| Newmanubiae Limited | Financial services | 2026 |
| Newmarket a & a Plant Hire Limited | Construction | 1970 |
| Newmarket Accommodation Limited | Real estate | 2002 |
| Newmarket Autos Ltd | Wholesale & retail | 2025 |
| Newmarket Community Foundation CIC | Administrative & support | 2009 |
| Newmarket Global Limited | Financial services | 2023 |
| Newmarket Joggers | Arts & recreation | 2019 |
| Newmarket Research Limited | Financial services | 2023 |
| Newmarket Road Management Company Limited | Real estate | 2008 |
| Newnham 35 Ltd | Real estate | 2021 |
| Newnham College Limited | Wholesale & retail | 1993 |
| Newnham College Management Limited | Construction | 1993 |
| Newnham Heart Clinic Ltd | Professional & scientific | 2025 |
| Newnham Nursery | Education | 2009 |
| Newnham Property Services Ltd | Construction | 2022 |
| Newport Consulting Limited | Administrative & support | 2010 |
| Newshin International Ltd | Extraterritorial | 2020 |
| Newson Group Holdings Ltd | Information & communication | 2026 |
| Newspaper House Limited | Real estate | 2004 |
| Newstyle Holdings Ltd | Financial services | 2021 |
| Newt Labs Ltd | Information & communication | 2019 |
| Newton (Hurrell) Farms Limited | Agriculture & fishing | 1983 |
| Newton Engineering Group Limited | Professional & scientific | 2000 |
| Newton Smith Ltd | Financial services | 2011 |
| Newton Smith Property Ltd | Real estate | 2015 |
| Newton Smith Wills & Probate Ltd | Professional & scientific | 2014 |
| Newton Technical Services Limited | Manufacturing | 1997 |
| Newton Technology Group PLC | Professional & scientific | 1959 |
| Nexacode Ltd | Information & communication | 2025 |
| Nexasa Holdings Ltd | Administrative & support | 2025 |
| Nexassure Agency (UK) Limited | Professional & scientific | 2017 |
| Nexgen AI Holdings Co., Ltd | Financial services | 2025 |
| Nexograph Limited | Information & communication | 2023 |
| Nexspace Property Group Ltd | Real estate | 2025 |
| Next Generation GP CIC | Education | 2026 |
| Next Mile Transport Limited | Transport & logistics | 2026 |
| Next Opus Ventures Ltd | Financial services | 2019 |
| Next Yachting Limited | Extraterritorial | 2023 |
| Nextension Ltd | Information & communication | 2025 |
| Nextera Innovations Limited | Wholesale & retail | 2026 |
| Nextgen Coders Limited | Education | 2023 |
| Nextgen Technology Services Ltd | Information & communication | 2022 |
| Nextgenlet Ltd | Real estate | 2025 |
| Nextgenseek Ltd | Professional & scientific | 2022 |
| Nextlevelsolutions Ltd | Financial services | 2025 |
| Nextmove Software Limited | Information & communication | 2011 |
| Nextnorth Ltd. | Information & communication | 2004 |
| Nextrabit Technology Solutions Ltd | Information & communication | 2023 |
| Nexus 4 Holdings Limited | Professional & scientific | 2001 |
| Nexus AI Ltd | Information & communication | 2023 |
| Nexus Brand Labs Ltd | Professional & scientific | 2025 |
| Nexus Clinical Limited | Professional & scientific | 2025 |
| Nexus Electronics Limited | Professional & scientific | 1999 |
| Nexus FS Ltd | Financial services | 2012 |
| Nexus Partnerships Ltd | Information & communication | 2011 |
| Nexus Track Limited | Manufacturing | 2025 |
| Nexusai Lingxi Intelligence. Ltd | Financial services | 2025 |
| Nexuslink Partners Ltd | Hospitality | 2024 |
| Nexusvibe International Media Co., Ltd. | Wholesale & retail | 2025 |
| NF Associates Limited | Construction | 2013 |
| Nftalk Ltd | Manufacturing | 2024 |
| NG Future Investments Ltd | Real estate | 2017 |
| Ngdm Ltd | Real estate | 2011 |
| NGF Associates Ltd | Wholesale & retail | 2026 |
| Ngowd Limited | Information & communication | 2025 |
| NH Transitions Ltd | Administrative & support | 2016 |