| Nest Logic Ltd | Information & communication | 2025 |
| Nest Property Holdings Ltd | Real estate | 2017 |
| Nestflo Limited | Information & communication | 2022 |
| Nestie Ltd | Transport & logistics | 2024 |
| Nestle in Properties Ltd | Real estate | 2024 |
| Nestsync Ltd | Households | 2021 |
| Nestwell Direct Ltd | Extraterritorial | 2026 |
| NET Ventures Group Limited | Professional & scientific | 2020 |
| NET Zero Pathways Limited | Professional & scientific | 2024 |
| NET4EDU Ltd | Administrative & support | 2019 |
| Netapproved Limited | Construction | 2015 |
| Netbiz Technology Limited | Professional & scientific | 2000 |
| Netenham LP | | 2013 |
| Netflame Limited | Information & communication | 2018 |
| Netham Community & Sports CIC | Administrative & support | 2024 |
| Netham Road Autos Limited | Wholesale & retail | 2012 |
| Netham Trading Ltd | Transport & logistics | 2022 |
| Nethercorp Ltd | Real estate | 2023 |
| Netherfield Administrative Services Limited | Administrative & support | 2011 |
| Netiro Ltd | Administrative & support | 2020 |
| Netiro People Ltd | Professional & scientific | 2024 |
| Netlify UK Limited | Information & communication | 2022 |
| Netlink Technology Limited | Information & communication | 2009 |
| Netmanage IT Solutions Limited | Information & communication | 2018 |
| Netmax Technologies Ltd | Information & communication | 2026 |
| Netrix Systems Limited | Information & communication | 2011 |
| Netsa Properties Ltd | Real estate | 2018 |
| Netstone Consulting Limited | Information & communication | 2021 |
| Nettec Environmental Services Ltd | Water & waste | 2009 |
| Nettec Holdings Ltd. | Extraterritorial | 2014 |
| Nettex Limited | Extraterritorial | 2011 |
| Nettlecroft Medical Limited | Health & social care | 2019 |
| Netvox Limited | Construction | 1981 |
| Network Brothers Ltd | Construction | 2018 |
| Network Counselling and Training Limited | Education | 1985 |
| Network Freak Limited | Information & communication | 2017 |
| Network Heating Ltd | Construction | 2022 |
| Network Infinity Ltd | Administrative & support | 2013 |
| Network Merchants Limited | Information & communication | 1996 |
| Network Operations Ltd | Administrative & support | 2011 |
| Networks ME Ltd | Professional & scientific | 2009 |
| Neucom Limited | Professional & scientific | 2001 |
| Neue Horizonte | | 2006 |
| Neuradyne Systems Limited | Information & communication | 2012 |
| Neural Networx Ltd | Information & communication | 2025 |
| Neuro Blume Ltd | Agriculture & fishing | 2026 |
| Neuro Culture Ltd | Education | 2023 |
| Neuro Salt Ltd | Health & social care | 2025 |
| Neuro Sync Capital Ltd | Financial services | 2025 |
| Neuro Tutor Limited | Education | 2024 |
| Neuroaspire Limited | Education | 2025 |
| Neurobridge-App Limited | Information & communication | 2026 |
| Neurocell Ltd | Professional & scientific | 2026 |
| Neurochase Holdings Limited | Financial services | 2021 |
| Neurochase Innovations Ltd | Administrative & support | 2021 |
| Neurochase Limited | Professional & scientific | 2020 |
| Neurochase Technologies Ltd | Professional & scientific | 2021 |
| Neurodive Services Limited | Information & communication | 2023 |
| Neurodivergent Insights (UK) Ltd | Information & communication | 2025 |
| Neuroheadz Limited | Information & communication | 2023 |
| Neuron Investments Private Limited | Real estate | 2018 |
| Neuron Technologies Limited | Information & communication | 2009 |
| Neuronostics Limited | Professional & scientific | 2017 |
| Neuroradicare Ltd | Health & social care | 2023 |
| Neuroradiology Ltd | Health & social care | 2010 |
| Neurosurgical Care Limited | Health & social care | 2013 |
| Neustrukt Ltd | Information & communication | 2025 |
| Neutral Tattoo Limited | Wholesale & retail | 2024 |
| Neutron Holdings Ltd | Professional & scientific | 2025 |
| Neutronium Limited | Professional & scientific | 2013 |
| NEV Renewable Solutions Limited | Financial services | 2015 |
| Neva Consultants Holdings Limited | Financial services | 2016 |
| Neva-Consultants.Com Limited | Professional & scientific | 2006 |
| Neva.Direct Limited | Administrative & support | 2016 |
| Nevard Roland Executive Resourcing Limited | Professional & scientific | 1996 |
| Never Know Defeat Ltd. | Professional & scientific | 2012 |
| Never Look Back Fitness Ltd | Arts & recreation | 2025 |
| Never Stop Working Ltd | Wholesale & retail | 2025 |
| Nevern Power Limited | Energy | 2015 |
| Neverregret IT Limited | Real estate | 2004 |
| Neversaydie Liquor Limited | Manufacturing | 2019 |
| Nevoline LP | | 2011 |
| Nevops Ltd | Information & communication | 2021 |
| New Allies Transport Limited | Transport & logistics | 2001 |
| New Avonridge Investments Limited | Real estate | 2020 |
| New Beginnings (Bristol) Limited | Education | 2012 |
| New Beginnings Restaway Ltd | Hospitality | 2021 |
| New Beijing Chinese Restaurant Limited | Hospitality | 2011 |
| New Birth Ministries UK Limited | Other services | 2017 |
| New Born Adventure Limited | Information & communication | 2006 |
| New Bristol Brewery Ltd | Hospitality | 2021 |
| New Bristol Brewery School Ltd | Manufacturing | 2017 |
| New Bristol Commercial Limited | Construction | 2024 |
| New Bristol Sinfonia | Arts & recreation | 1997 |
| New Build Inspirations Limited | Construction | 2025 |
| New Build Modular Ltd | Construction | 2018 |
| New Chapter Farms Ltd | Health & social care | 2025 |
| New Chapter London Limited | Professional & scientific | 2022 |
| New Cheltenham Community Centre | Education | 2012 |
| New Cheltenham Garage Limited | Real estate | 1978 |