| New Lane Motors (UK) Limited | Wholesale & retail | 2006 |
| New Leaf Beauty Limited | Other services | 2018 |
| New Life (Notts) Limited | Real estate | 2016 |
| New Reach Developments Ltd | Construction | 2025 |
| New Roots Care & Education Ltd | Education | 2015 |
| New Start Removals Ltd | Transport & logistics | 2009 |
| New Vision Investment Group Ltd | Construction | 2020 |
| New WOK Wonder Ltd | Hospitality | 2022 |
| New YOU Hair Academy Ltd | Other services | 2024 |
| New Zabcia Ltd | Wholesale & retail | 2024 |
| Newage Developments Limited | Construction | 2019 |
| Newark Plumbing & Heating Supplies Limited | Wholesale & retail | 2007 |
| Newcastle Emlyn Ltd | Administrative & support | 2022 |
| Newgen Projects Limited | Construction | 2025 |
| Newlands Engineering Ltd | Manufacturing | 2017 |
| Newlook Coating Services Ltd | Construction | 2021 |
| News & Booze Liverpool Ltd | Wholesale & retail | 2015 |
| News & Booze Overpool Limited | Wholesale & retail | 2019 |
| News Food & Wine Ltd | Wholesale & retail | 2004 |
| News Journal Ltd | Information & communication | 2014 |
| Newvision Developments U.K Ltd | Construction | 2016 |
| Newvision Homes U.K Ltd | Construction | 2019 |
| Nexgen Management Solutions Ltd | Professional & scientific | 2015 |
| Next Generation Planning Ltd | Professional & scientific | 2005 |
| Next Level Dog Training Ltd | Agriculture & fishing | 2023 |
| Next-Gen Fuels UK Ltd | Mining & quarrying | 2022 |
| Nextday Experts Ltd | Transport & logistics | 2025 |
| Nextgen Motor Company Limited | Wholesale & retail | 2025 |
| Nexus Equity Management Ltd | Professional & scientific | 2026 |
| Nexus Gaming Van Ltd | Arts & recreation | 2026 |
| NFG Installations Ltd | Construction | 2024 |
| NG Dental Care (Derbyshire) Limited | Health & social care | 2020 |
| NG Health and Care Ltd | Health & social care | 2025 |
| NG Hotels Limited | Hospitality | 2026 |
| NG Plumbing and Property Limited | Construction | 2025 |
| NG Property Management and Letting Ltd | Real estate | 2021 |
| NG19 Car Sales Ltd | Wholesale & retail | 2025 |
| NG20 Publishing Ltd | Information & communication | 2025 |
| Ngab Limited | Hospitality | 2022 |
| NGS Mini Market Ltd | Wholesale & retail | 2024 |
| NI Maintenance Ltd | Manufacturing | 2020 |
| Nibble and Roar Limited | Wholesale & retail | 2024 |
| Nibble and Wiggles Ltd | Wholesale & retail | 2026 |
| Nicco Global Afro Groceries Ltd | Wholesale & retail | 2024 |
| Niche Cafe Limited | Hospitality | 2013 |
| Niche Imaging Ltd | Health & social care | 2018 |
| Nicholas & Walters Limited | Professional & scientific | 2009 |
| Nick Bradbury Limited | Construction | 2003 |
| Nicks Back Grill and Chippy Ltd | Hospitality | 2025 |
| Nicky Enterprise Ltd | Wholesale & retail | 2018 |
| NICU1997 Limited | Transport & logistics | 2025 |
| Nidivo Ltd | Professional & scientific | 2022 |
| Nigel Briscoe Oilfield Consultancy Services Limited | Professional & scientific | 2021 |
| Nigel Scotney Transport Services Limited | Transport & logistics | 2003 |
| Night Sky Investments Limited | Financial services | 2013 |
| Nijjar Group Limited | Real estate | 2019 |
| Nikita 20 Limited | Wholesale & retail | 2022 |
| Niko Pedersen Limited | Health & social care | 2025 |
| Nilla Property Limited | Real estate | 2024 |
| Nishs Associates Ltd | Wholesale & retail | 2021 |
| NJW Groundworks Limited | Administrative & support | 2026 |
| NK Development and Construction Ltd | Construction | 2025 |
| NK Mansfield Ltd | Hospitality | 2024 |
| NMH TOC Ltd | Hospitality | 2024 |
| NMW Construction Solutions Ltd | Construction | 2025 |
| NO Object Limited | Wholesale & retail | 2024 |
| NO1 Hair and Beauty Lounge Limited | Other services | 2022 |
| NO1 Replacements Ltd | Wholesale & retail | 2021 |
| Noahrrasa Ltd | Hospitality | 2023 |
| Noelanicorp Ltd | Professional & scientific | 2023 |
| Noise Foundation CIC | Information & communication | 2026 |
| Nomad Originals UK Ltd | Manufacturing | 2012 |
| Nondos Limited | Health & social care | 2008 |
| Nonstop International Limited | Professional & scientific | 2006 |
| Noor MA Limited | Education | 2024 |
| Norizi Ltd | Wholesale & retail | 2023 |
| North Midland Plant Ltd | Mining & quarrying | 2016 |
| North Notts Brickwork Ltd | Construction | 2018 |
| Northfield Stores Ltd | Wholesale & retail | 2017 |
| NOT Just Desserts Ltd. | Hospitality | 2019 |
| NOT Nineties Forever Events Limited | Hospitality | 2023 |
| Nott Just Waste Ltd | Other services | 2025 |
| Nottingham & Mansfield Drains Ltd | Water & waste | 2023 |
| Nottingham Driveways Group Ltd | Construction | 2026 |
| Nottingham ENT Clinical and Medicolegal Services Ltd | Health & social care | 2015 |
| Nottingham Fashion Week Ltd | Professional & scientific | 2025 |
| Nottingham Land and Property Limited | Construction | 2021 |
| Nottingham Land Rover Club | Arts & recreation | 2009 |
| Nottingham Raceway Motor Company Limited | Wholesale & retail | 2012 |
| Nottinghamdetox Ltd | Other services | 2026 |
| Nottinghamshire & District Miners' 1939 Pension Trustees Limited | Financial services | 2026 |
| Nottinghamshire Building & Roofing Ltd | Construction | 2022 |
| Nottinghamshire Community Foundation | Financial services | 1997 |
| Nottinghamshire Eco Fuels Limited | Agriculture & fishing | 2003 |
| Nottinghamshire Fire Safety Limited | Public administration | 2010 |
| Nottinghamshire Independent Domestic Abuse Services (Nidas) | Other services | 2004 |
| Nottinghamshire Mining Museum Ltd | Arts & recreation | 2017 |
| Nottinghamshire Turkish Cultural and Education Centre Ltd | Education | 2026 |
| Nottinghamshire Urology Ltd | Health & social care | 2010 |
| Notts Home FIX Ltd | Construction | 2026 |