| Nb:Style Limited | Other services | 2007 |
| NBS Media Group Limited | Professional & scientific | 2024 |
| Nbsf Limited | Information & communication | 2025 |
| Nbsf Services Limited | Transport & logistics | 2025 |
| NC Plumbing and Property Maintenance Ltd | Construction | 2010 |
| NCK Electrical Ltd | Construction | 2019 |
| NCL Workforce Ltd | Manufacturing | 2026 |
| NCN Building & Maintenance Limited | Construction | 2007 |
| NCN Energy Solutions Limited | Construction | 2014 |
| NCS Services Plymouth Limited | Financial services | 2011 |
| ND Installations SW Limited | Construction | 2019 |
| Nd-Ok! Ltd | Health & social care | 2026 |
| ND3 Ltd | Mining & quarrying | 2015 |
| NDT Rope Access Inspections UK & Ireland Limited | Professional & scientific | 2017 |
| NE Rail Ltd | Construction | 2017 |
| Neal Point Limited | Real estate | 2019 |
| Neal Stoneman Holdings Limited | Construction | 2020 |
| Neanda Limited | Construction | 2023 |
| Nearly Naked VEG Holdings Ltd | Wholesale & retail | 2024 |
| Nearn Co. Limited | Construction | 2009 |
| Nedu Industries UK Ltd | Wholesale & retail | 2026 |
| Neea Studios Ltd | Information & communication | 2023 |
| Need -A-Tyre Plymouth Ltd | Manufacturing | 2020 |
| Need-A-Tyre UK Ltd | Manufacturing | 2012 |
| Needacab Ltd | Transport & logistics | 2019 |
| Neely Peely Ltd | Wholesale & retail | 2024 |
| Neil Griffiths Loss Adjuster Ltd | Financial services | 2003 |
| Neil Hogarth Building Contractor Limited | Construction | 2018 |
| Nell&Wills Homes Limited | Real estate | 2022 |
| Nelson Gardens Management Limited | Households | 1988 |
| Nelson Residents Limited | Households | 1992 |
| Nelsons Cars Ltd | Wholesale & retail | 2009 |
| NEO Peak Cleaning Limited | Administrative & support | 2024 |
| NEO Ruston Ltd | Manufacturing | 2024 |
| NEO Traffic Data Services Ltd | Professional & scientific | 2018 |
| Neon (Holdings) Limited | Extraterritorial | 2013 |
| Neon Juno Ltd | Professional & scientific | 2024 |
| Neon Property Limited | Real estate | 2013 |
| Neos Holdings Limited | Financial services | 2018 |
| Nerella Estates Ltd | Real estate | 2025 |
| Nergarlia Limited | Real estate | 2003 |
| Nerida Europe Limited | Other services | 2023 |
| Nerve US Ltd | Manufacturing | 2013 |
| Nesc Ltd | Professional & scientific | 2013 |
| Nesh Sons Ltd | Health & social care | 2014 |
| Neswick Street Stores Limited | Wholesale & retail | 2009 |
| Net-Com (SW) Limited | Construction | 2011 |
| Net-It Solutions Limited | Professional & scientific | 1960 |
| NET2NEST Ltd | Real estate | 2025 |
| Netherton Tools Limited | Wholesale & retail | 2003 |
| Netlogix (2024) Limited | Financial services | 2024 |
| Netlogix Holdings Ltd | Financial services | 2019 |
| Netlogix UK Limited | Information & communication | 2002 |
| Netton Farm Management Company Limited | Extraterritorial | 1993 |
| Network Yacht Brokers (Southwest) Ltd | Financial services | 2010 |
| Neudice CIC | Professional & scientific | 2023 |
| Neufarm Limited | Extraterritorial | 2017 |
| Neuroimaging SW Ltd | Health & social care | 2015 |
| Neuropath Assessments Limited | Health & social care | 2026 |
| New 62 Fore Street Barber Ltd | Other services | 2021 |
| New AGE Landscaping Ltd | Administrative & support | 2019 |
| New Albert Road Kebab Ltd | Hospitality | 2020 |
| New and Past Impressions Limited | Wholesale & retail | 2024 |
| New Balti Restaurant Ltd | Hospitality | 2021 |
| New Christy's Limited | Wholesale & retail | 2014 |
| New Court Limited | Other services | 2006 |
| New East END Cafe & Takeaway Ltd | Hospitality | 2025 |
| New Energy Co-Operative Limited | Wholesale & retail | 2012 |
| New ERA Glass Ltd | Construction | 2020 |
| New George House (Plymouth) Ltd | Real estate | 2025 |
| New House Designs (South West) Limited | Professional & scientific | 2007 |
| New Jade 74 Limited | Hospitality | 2025 |
| New Leaf Holdings (SW) Limited | Financial services | 2021 |
| New Leaf Landscaping and Fencing Limited | Administrative & support | 2019 |
| New Leaf Lifestyle Limited | Administrative & support | 2020 |
| New Leaf Sheds Limited | Administrative & support | 2019 |
| New Lisa's Kitchen Limited | Hospitality | 2024 |
| New Morley Arms Ltd | Hospitality | 2026 |
| New Style Barber Lima Ltd | Other services | 2025 |
| New Style Barbers Mutley Ltd | Other services | 2019 |
| New Style Barbers Stocksbridge Ltd | Other services | 2018 |
| New Sun Tattoo Ltd | Arts & recreation | 2026 |
| New Touch One Ltd | Other services | 2026 |
| New Wave Marine Limited | Water & waste | 2014 |
| New West Park Ltd | Hospitality | 2019 |
| New World (Eastbourne) Limited | Hospitality | 2018 |
| Newbury Design Limited | Professional & scientific | 2021 |
| Newnham Park (U.K.) Limited | Arts & recreation | 1997 |
| Newnham Park Garage Ltd | Wholesale & retail | 2004 |
| Newport Motor Company Limited | Wholesale & retail | 2021 |
| News Graphics Ltd | Arts & recreation | 2017 |
| Newton & Noss Community Land Trust Ltd | Other services | 2018 |
| Newton & Noss Community Stores C.I.C. | Transport & logistics | 2016 |
| Newton Barton Farm (Investment) Limited | Agriculture & fishing | 1997 |
| Newton Barton Farm Limited | Agriculture & fishing | 1997 |
| Newton Court Management Company Limited | Households | 2000 |
| Newton Farmhouse Management Limited | Households | 1985 |
| Newton Ferrers Enterprises Limited | Financial services | 2019 |
| Newton Ferrers Sailing School Limited | Arts & recreation | 1956 |
| Newton Park Management Company Limited | Households | 1985 |