| Neogy Limited | Manufacturing | 2025 |
| Neolink Technology Limited | Manufacturing | 2025 |
| Neon Bunny HOP Limited | Wholesale & retail | 2025 |
| Neon Vandals Ltd | Wholesale & retail | 2026 |
| Neopay Global Limited | Professional & scientific | 2019 |
| Neopay Virtual Solutions Limited | Extraterritorial | 2011 |
| Neper Limited | Professional & scientific | 2024 |
| Nepo Network Limited | Information & communication | 2021 |
| Neptune Care Services Ltd | Health & social care | 2016 |
| Neptune Deep Sea Life Development EU Group Co. Ltd | Extraterritorial | 2018 |
| Neri Technologies Limited | Information & communication | 2023 |
| Neris Analytics Limited | Other services | 2013 |
| Nero Cambridge Ltd | Administrative & support | 2020 |
| Nerostone Floors and Ceilings Ltd | Construction | 2018 |
| Nerre Therapeutics Holdings Limited | Professional & scientific | 2017 |
| Nerre Therapeutics Ltd | Professional & scientific | 2012 |
| Neshat MZ International Trade Limited | Wholesale & retail | 2024 |
| Nesslands of Burwell Limited | Professional & scientific | 2013 |
| Nest Cambridge Ltd | Real estate | 2025 |
| Nest Vale Advisory & Management Ltd | Financial services | 2025 |
| Nestosoft Ltd | Administrative & support | 2016 |
| NET & Thread Limited | Wholesale & retail | 2025 |
| NET Positive Partners Ltd | Professional & scientific | 2022 |
| NET School Limited | Education | 2013 |
| Net-Thinking (UK) Ltd | Information & communication | 2013 |
| Netenergy Ltd | Professional & scientific | 2021 |
| Netfpga C.I.C. | Professional & scientific | 2015 |
| Netgraph Ltd | Administrative & support | 2018 |
| Netherfield Properties Ltd. | Construction | 2017 |
| Netherhall Gardens (Cambridge) Management Company Limited | Households | 2025 |
| Netherlands Bendem Biochemistry Co., Ltd | Mining & quarrying | 2026 |
| Netherlands Casella International Group Ltd | Mining & quarrying | 2020 |
| Netherlands DSM International Chemical Fertilizer Co., Ltd | Wholesale & retail | 2023 |
| Netherlands Groen Vicens Horticulture Co., Ltd | Mining & quarrying | 2025 |
| Netherlands Gros International Plant Nutrition Co., Ltd | Mining & quarrying | 2024 |
| Netherlands Hegao Fertilizer Share Co., Limited | Extraterritorial | 2023 |
| Netherlands Heyihuang International Chemical Co., Ltd | Mining & quarrying | 2025 |
| Netherlands Janssens Smeets Chemical Limited | Extraterritorial | 2025 |
| Netherlands Jiashi LAI Crop Nutrition Co., Ltd | Mining & quarrying | 2026 |
| Netherlands Jinfali Agricultural Group Co., Ltd | Mining & quarrying | 2026 |
| Netherlands OEN International Agricultural Co., Limited | Extraterritorial | 2025 |
| Netmore IOT Solutions Ltd | Information & communication | 2019 |
| Netplan Mobile Ltd | Information & communication | 2011 |
| Netron PAY Ltd | Information & communication | 2024 |
| Netropy Partners Blue Ltd | Financial services | 2025 |
| Netropy Partners Ltd | Financial services | 2025 |
| Netropy Partners Red Limited | Financial services | 2025 |
| Netservers Limited | Information & communication | 2000 |
| Netspace Limited | Professional & scientific | 2023 |
| Nettleham Chase Residents Management Company Limited | Households | 2018 |
| Netvirtual Limited | Information & communication | 2017 |
| Network Change Limited | Professional & scientific | 2000 |
| Network Skips Ltd | Financial services | 2025 |
| Network Solutions & Management Enterprises (N.S.M.E.) Limited | Professional & scientific | 1995 |
| Networkmods Limited | Information & communication | 2005 |
| Networks Group Ltd | Information & communication | 2026 |
| Neu-Synapse Ltd | Other services | 2020 |
| Neubau Architecture Limited | Professional & scientific | 2014 |
| Neubau Objects Ltd | Professional & scientific | 2024 |
| Neumind Ltd | Information & communication | 2019 |
| Neuralink Labs Ltd | Information & communication | 2025 |
| Neuralpulse Limited | Professional & scientific | 2025 |
| Neuralsync Solutions Ltd | Information & communication | 2023 |
| Neuro XR Ltd | Information & communication | 2022 |
| Neurobox Limited | Professional & scientific | 2017 |
| Neurocube Ltd | Health & social care | 2019 |
| Neuroflat Ltd | Real estate | 2023 |
| Neuroinclusify Ltd | Professional & scientific | 2025 |
| Neuropath Biosciences Ltd | Professional & scientific | 2024 |
| Neurorad Consulting Limited | Health & social care | 2014 |
| Neuroreach Technologies Ltd | Manufacturing | 2025 |
| Neurospace Ltd | Professional & scientific | 2021 |
| Neurosurgery Solutions Limited | Education | 2019 |
| Neutreeno Limited | Information & communication | 2020 |
| Nevodia Tech Ltd | Information & communication | 2023 |
| Nevsky Editions Ltd. | Administrative & support | 2018 |
| Nevworks Limited | Financial services | 2020 |
| New Affinity Limited | Administrative & support | 2007 |
| New Blue JAY Company Limited | Wholesale & retail | 2023 |
| New Brand Futures Ltd | Professional & scientific | 2025 |
| New Brand Media Ltd | Information & communication | 2007 |
| New Bury ST Edmunds Sushi Limited | Hospitality | 2020 |
| New Civils Construction Limited | Construction | 2014 |
| New Creation Investors Ltd | Real estate | 2019 |
| New Global Ltd | Wholesale & retail | 2021 |
| New Golden Buddha Ltd | Hospitality | 2017 |
| New Green Plastics Limited | Water & waste | 2024 |
| New Grid Networks UK Ltd | Professional & scientific | 2025 |
| New Gucci Limited | Extraterritorial | 2025 |
| New Heath Autos Limited | Wholesale & retail | 2015 |
| New Heights Global Limited | Administrative & support | 2019 |
| New Hermes Limited | Manufacturing | 2023 |
| New Homes Mortgage Broker Limited | Financial services | 2020 |
| New International Encounter | Arts & recreation | 2004 |
| New Legal Group Limited | Financial services | 2024 |
| New Life Traveler Ltd | Manufacturing | 2023 |
| New Look Decorating Services Limited | Other services | 2010 |
| New Luting Chemical Co., Ltd | Mining & quarrying | 2025 |
| New Maido Ltd | Hospitality | 2024 |
| New Marque Specialist Cars Limited | Wholesale & retail | 2007 |