| Neema Crafts Limited | Wholesale & retail | 2015 |
| Neil Greensides Limited | Construction | 2003 |
| Neil Griffiths Consultancy Limited | Professional & scientific | 2015 |
| Neil Mulholland Racing Limited | Arts & recreation | 2010 |
| Neilelliotx Ltd | Professional & scientific | 2023 |
| Nelly Homes Limited | Construction | 2021 |
| Nelson Consultancy Ltd | Professional & scientific | 2022 |
| Nelson Renewables Ltd | Professional & scientific | 2023 |
| Nemaat Ltd | Health & social care | 2026 |
| Nements Ltd | Information & communication | 2016 |
| Nemick Limited | Professional & scientific | 2007 |
| Nensi Ltd | Real estate | 2023 |
| Neoterical Limited | Administrative & support | 2016 |
| Nest Builders Cheltenham Ltd | Construction | 2012 |
| Nest Data Limited | Administrative & support | 2008 |
| NET & Line Ltd | Wholesale & retail | 2020 |
| NET Publications Limited | Information & communication | 2006 |
| Netball Players Association Limited | Arts & recreation | 2017 |
| Netherfield Publishing Ltd | Administrative & support | 2019 |
| Nettle Associates Ltd | Administrative & support | 2020 |
| Network N Holdings Limited | Financial services | 2022 |
| Network N Limited | Information & communication | 2012 |
| Network N Media Limited | Information & communication | 2022 |
| Networked Ltd | Information & communication | 2023 |
| Neumatrx Ltd | Professional & scientific | 2016 |
| Neuro-Inclusive Engineering Services Limited | Professional & scientific | 2024 |
| Neutral Consultants Limited | Professional & scientific | 2022 |
| Neve Solutions Ltd | Hospitality | 2021 |
| Nevvis Ltd | Wholesale & retail | 2024 |
| New Architecture (Bray) Limited | Hospitality | 2007 |
| New Crown Inn Bath Limited | Hospitality | 2024 |
| New Day Financial Services Limited | Professional & scientific | 2022 |
| New GEN Corporation Limited | Information & communication | 1998 |
| New Histories Ltd | Professional & scientific | 2011 |
| New Horizons Property Limited | Real estate | 2020 |
| New Millenium Developments Limited | Construction | 2009 |
| New Millenium Developments Wellsway Ltd. | Extraterritorial | 2011 |
| New Millennium Homes Limited | Construction | 2015 |
| New Model Media Limited | Information & communication | 2022 |
| New Oriel Hall | Arts & recreation | 2006 |
| New Silk Route Digital Ltd | Professional & scientific | 2017 |
| New Territories Imports Ltd. | Wholesale & retail | 2000 |
| New Venture Assets LLP | | 2022 |
| New Venture Holdings Limited | Real estate | 2019 |
| New Venture Housing Limited | Construction | 2018 |
| New Wave Law Solicitors Limited | Professional & scientific | 2026 |
| Newable Carpentry Ltd | Construction | 2017 |
| Newable Dancerace Limited | Financial services | 2021 |
| Newbolt Croft Limited | Professional & scientific | 2019 |
| Newbridge Community Hub Limited | Health & social care | 2026 |
| Newbridge TC Limited | Real estate | 2019 |
| Newco Holding 101 Ltd | Information & communication | 2025 |
| Newlands House Management Company Limited | Hospitality | 1986 |
| Newman Langley & Stavri Financial Consulting Limited | Financial services | 2017 |
| Newman's Trading Ltd | Extraterritorial | 2024 |
| Newmans Building Conservation Limited | Construction | 2004 |
| Newmans Joinery Limited | Manufacturing | 2016 |
| Newrise Associates Limited | Real estate | 1997 |
| Newspage Media Limited | Professional & scientific | 2021 |
| Newt Community Limited | Arts & recreation | 2025 |
| Newton Farm Bath Limited | Agriculture & fishing | 2021 |
| Newton Farm Foods Limited | Manufacturing | 2010 |
| Nexapro Brands Ltd | Wholesale & retail | 2024 |
| Next Stage Theatre Company Limited | Arts & recreation | 2003 |
| Next Travel UK Ltd | Administrative & support | 2025 |
| Nextek Consulting Limited | Professional & scientific | 2003 |
| Nextgen Diagnostic Labs Limited | Health & social care | 2025 |
| Nexus Venture Advisors Ltd | Professional & scientific | 2024 |
| Nexxora Ltd | Wholesale & retail | 2025 |
| Ng-Tech Limited | Professional & scientific | 2023 |
| NGJ Consultancy Limited | Wholesale & retail | 2017 |
| Nguni Holdings Ltd | Financial services | 2022 |
| NH Pharmaceutical Engineering Limited | Professional & scientific | 2022 |
| Nice Buns Bristol Ltd | Manufacturing | 2023 |
| Nich & D'S Ltd | Wholesale & retail | 2011 |
| Nicholas Harvey 3D Nails Limited | Professional & scientific | 2011 |
| Nick Leeder & Co Limited | Professional & scientific | 2022 |
| Nick Matthews Surveying Limited | Professional & scientific | 2018 |
| Nick Mitchell Training Ltd | Arts & recreation | 2025 |
| Nick Reeves Construction Ltd | Construction | 2023 |
| Nick Shipp Architects Limited | Professional & scientific | 2011 |
| Nicky Hill Consulting Ltd | Administrative & support | 2026 |
| Nicnat Holdings Limited | Financial services | 2022 |
| Nige Ltd | Information & communication | 2005 |
| Nigel Thomas Audio Production Services Ltd | Arts & recreation | 2020 |
| Nigel Turner Construction Limited | Construction | 2021 |
| Nightingale House Management Services Limited | Households | 2007 |
| Nikie Stephenson Limited | Hospitality | 2010 |
| Nilmay Limited | Households | 1975 |
| Nine Feet Tall Limited | Professional & scientific | 2003 |
| Ninja Squirrels Ltd | Education | 2025 |
| Nishio Limited | Transport & logistics | 2016 |
| NJY Studio Ltd | Professional & scientific | 2016 |
| Nndev Ltd | Health & social care | 2023 |
| Nndev Property Limited | Real estate | 2023 |
| NO 26 Ltd | Administrative & support | 2012 |
| NO 3 Spencers Belle VUE Limited | Real estate | 1999 |
| NO Ordinary Moments Limited | Financial services | 2024 |
| NO Ordinary Shopfitting Company Limited | Construction | 1998 |
| NO Regrets Fitness Ltd | Arts & recreation | 2026 |