| Ncge Limited | Health & social care | 2015 |
| NCP Healthcare Ltd | Health & social care | 2025 |
| NDA Civils & Building Limited | Construction | 2020 |
| Ndoji Ltd | Health & social care | 2026 |
| NE0KAI Limited | Arts & recreation | 2026 |
| Near & FAR (2018) Ltd | Transport & logistics | 2018 |
| Neat and Pressed Woodhall Spa Ltd | Administrative & support | 2025 |
| Necuty Healthcare Services Limited | Administrative & support | 2015 |
| Nedelka Consulting Ltd | Professional & scientific | 2018 |
| Neesham Farms Limited | Agriculture & fishing | 1980 |
| Neil Johnson Haulage Limited | Transport & logistics | 1998 |
| Neil Mcbride (Groundworks) Limited | Construction | 2004 |
| Neil Osborne Freelance Ltd | Administrative & support | 2009 |
| Neil Patrick Associates Ltd | Professional & scientific | 2020 |
| Nelly's Bakes & Snacks Ltd | Hospitality | 2025 |
| Nelstrop Farms Limited | Agriculture & fishing | 1999 |
| Nephin Asset Management Limited | Financial services | 2021 |
| Nerdherderz Ltd | Manufacturing | 2024 |
| Nerg Holdings Ltd | Financial services | 2020 |
| Nerg Limited | Construction | 2014 |
| Nerife Limited | Real estate | 2025 |
| Nerizon Ltd | Information & communication | 2008 |
| Nerke Ltd | Transport & logistics | 2024 |
| Nerve Consultants Ltd | Health & social care | 2020 |
| Nest Design and Build Solutions Ltd | Construction | 2026 |
| Nest Plus Limited | Construction | 2026 |
| Nestaré Ltd | Construction | 2025 |
| Nesterra Developments Ltd | Construction | 2025 |
| NET Zero Waste Solutions Limited | Water & waste | 2020 |
| NET Zero Workwear Limited | Wholesale & retail | 2024 |
| Netamorphasis Limited | Information & communication | 1998 |
| Netaxis Solutions UK Limited | Information & communication | 2017 |
| Netlane Limited | Real estate | 2000 |
| Netria Ltd | Information & communication | 2026 |
| Nettleham Developments Ltd | Construction | 2018 |
| Nettleham Estates (Commercial) Ltd | Real estate | 2021 |
| Nettleham Estates Limited | Real estate | 2017 |
| Nettleham Infant and Nursery School | Education | 2012 |
| Nettleham Sports & Community Club Ltd. | Arts & recreation | 2025 |
| Nettleton Development Limited | Construction | 2020 |
| Nettraffic.Fr Ltd | Information & communication | 2014 |
| Network Archaeology (Holdings) Limited | Financial services | 2023 |
| Network Archaeology Limited | Professional & scientific | 1996 |
| Network Cars Limited | Education | 2018 |
| Neuro Assistance Limited | Professional & scientific | 2026 |
| Neurobites Ltd | Education | 2023 |
| Neurodivergent Ltd | Education | 2025 |
| Neuroseminars Europe Ltd | Education | 2021 |
| Neurotopia CIC | Administrative & support | 2024 |
| Neuroviva (Neuro-Hormonal Health and Wellness) Ltd | Education | 2025 |
| Neustadt Court Management Limited | Real estate | 2007 |
| Nevern Place Limited | Professional & scientific | 2014 |
| New AGE Financial Services Ltd | Professional & scientific | 2024 |
| New AGE Plumbing and Heating Limited | Construction | 2016 |
| New Build Independent Snagging Ltd | Professional & scientific | 2023 |
| New Forest View Limited | Hospitality | 2019 |
| New GEN Music Limited | Education | 2023 |
| New Golden Cherry 888 Ltd | Hospitality | 2023 |
| New Itnest Limited | Wholesale & retail | 2020 |
| New Kreate Limited | Real estate | 2014 |
| New Leaf ARB Limited | Agriculture & fishing | 2013 |
| New Lease Developments Limited | Construction | 2016 |
| New Life Assets Ltd | Real estate | 2024 |
| New Life Systems UK Limited | Wholesale & retail | 2007 |
| New Lincoln Theatre Limited | Arts & recreation | 2016 |
| New Look Barbers Lincoln Limited | Other services | 2025 |
| New Pang City Ltd | Hospitality | 2023 |
| New Point Ltd | Hospitality | 2019 |
| New Port Motorhomes Limited | Wholesale & retail | 2018 |
| New Star Property Solutions Ltd | Real estate | 2020 |
| New Wave Swimming Limited | Arts & recreation | 2024 |
| New Youth Theatre Limited | Arts & recreation | 2006 |
| NEW2PROPERTY Ltd | Real estate | 2019 |
| Newark Cars Limited | Wholesale & retail | 2008 |
| Newark Convenience Store Limited | Wholesale & retail | 2025 |
| Newark Greenwaste Limited | Extraterritorial | 2010 |
| Newark Road (552) Management Company Limited | Households | 2005 |
| Newark Scaffold Limited | Administrative & support | 2004 |
| Newark Signs Limited | Professional & scientific | 2012 |
| Newark Wheel Refurbishment Limited | Extraterritorial | 2006 |
| Newbold Mortgages Limited | Financial services | 2019 |
| Newell Plastering Limited | Construction | 2014 |
| Newell's Holdings Limited | Financial services | 2016 |
| Newell's Plumbing Lincoln Limited | Construction | 2016 |
| Newell's Projects (Lincoln) Limited | Construction | 2016 |
| Newell's Projects Limited | Construction | 2009 |
| Newfield Leisure Limited | Arts & recreation | 2020 |
| Newholm Estates Limited | Real estate | 2025 |
| Newholm Financial Limited | Financial services | 2025 |
| NEWJAZZ5 Limited | Arts & recreation | 2008 |
| Newland Freeholds Limited | Professional & scientific | 1960 |
| Newland Geomatics Ltd | Professional & scientific | 2018 |
| Newland Partners Limited | Administrative & support | 2017 |
| Newlin & Flynn Ltd | Construction | 2024 |
| Newlinc Industrial Door Systems Limited | Manufacturing | 2014 |
| Newline Cleaning Limited | Administrative & support | 2005 |
| Newline Developments Limited | Real estate | 2014 |
| Newman Carpentry & Joinery Ltd | Manufacturing | 2022 |
| Neworld Books Limited | Wholesale & retail | 2025 |
| Newport Chinese Chef Ltd | Hospitality | 2024 |