| Neko London Limited | Other services | 2013 |
| Nelbec Limited | Professional & scientific | 2026 |
| Nelga Maintenance Limited | Wholesale & retail | 2021 |
| Nelker Ltd | Real estate | 2024 |
| Nella Landscaping & Groundwork’S Ltd | Professional & scientific | 2026 |
| Nelson (Heat Transfer) Limited | Manufacturing | 2000 |
| Nelson Carpets Limited | Wholesale & retail | 2010 |
| Nelson Financial Solutions Limited | Real estate | 2014 |
| Nelson Inspection Ltd | Mining & quarrying | 2020 |
| Nelsons Cheese & ALE House Limited | Wholesale & retail | 2016 |
| Nelson’S Development & Construction Limited | Construction | 2019 |
| Neltundo Limited | Information & communication | 2012 |
| Nemero Ltd | Professional & scientific | 2013 |
| Nemesis Admin Services Ltd | Administrative & support | 2011 |
| Neni LLP | | 2012 |
| Nenocom Ltd | Real estate | 2023 |
| NEO Jurassica Ltd | Manufacturing | 2019 |
| NEO Linx Ltd | Wholesale & retail | 2021 |
| NEO Skin NES Limited | Other services | 2022 |
| NEO Style Limited | Construction | 2011 |
| Neoflood Ltd | Professional & scientific | 2015 |
| Neoh Lettings Ltd | Real estate | 2021 |
| Neoloop Frames Ltd | Professional & scientific | 2026 |
| Neon Blink 360 Limited | Other services | 2024 |
| Neon Fish Limited | Hospitality | 2021 |
| Neon Social Limited | Hospitality | 2025 |
| Neondart Limited | Financial services | 1985 |
| Neontempo Limited | Arts & recreation | 2020 |
| Neopath Solutions Limited | Health & social care | 2026 |
| Nepalbox Ltd | Wholesale & retail | 2025 |
| Nera Electrics & Renewables Ltd | Construction | 2024 |
| Nera Estates Limited | Real estate | 2024 |
| Nera Properties Ltd | Real estate | 2021 |
| Nergiz Food Ltd | Hospitality | 2020 |
| Nerve News & Media Ltd | Information & communication | 2025 |
| Nervo Limited | Arts & recreation | 2009 |
| Nervo Touring LLP | | 2014 |
| NES Consultants Limited | Water & waste | 2014 |
| Nessa Land Ltd | Hospitality | 2019 |
| Nesslightning Services Ltd | Wholesale & retail | 2026 |
| Nest & Yard Limited | Wholesale & retail | 2024 |
| Nest Away 24 Ltd | Information & communication | 2026 |
| Nest Ease Properties Ltd | Households | 2026 |
| Nest Fire Safety Limited | Professional & scientific | 2026 |
| Nest Haus Ltd | Real estate | 2025 |
| Nest Home Builders Limited | Construction | 2015 |
| Nest Home Makers Limited | Construction | 2017 |
| Nest Mortgage Advice Ltd | Financial services | 2023 |
| Nest of Shefield Limited | Education | 2025 |
| Nest.Co.Uk Limited | Wholesale & retail | 2003 |
| Nestd Property Holding Limited | Financial services | 2020 |
| Nestd Property Limited | Real estate | 2020 |
| Nesthill Limited | Administrative & support | 1995 |
| Nesto Limited | Health & social care | 2012 |
| Nestoria Limited | Wholesale & retail | 2025 |
| Nestpath Ltd | Real estate | 2025 |
| Nestpay Ltd | Construction | 2022 |
| Nesttogether Ltd | Hospitality | 2020 |
| Nestwell Goods Limited | Wholesale & retail | 2025 |
| NET Zero Asset Management Ltd | Administrative & support | 2024 |
| NET Zero Environmental Limited | Professional & scientific | 2023 |
| Netgen Infrastructure Limited | Information & communication | 2021 |
| Nether Edge Bowling Club | Arts & recreation | 2026 |
| Nether Edge Management Company Limited | Households | 2001 |
| Nether Edge Neighbourhood Group | Other services | 2010 |
| Nether Edge Pizza Co Limited | Wholesale & retail | 2015 |
| Nether Green Nursery Limited | Health & social care | 2017 |
| Netherby Manor Management Company Limited | Households | 2002 |
| Nethercot Programming & Logistics Limited | Professional & scientific | 2026 |
| Netheredge Investments Limited | Real estate | 2008 |
| Netheredge Launderette Ltd | Other services | 2014 |
| Nethergreen Properties Ltd | Real estate | 2023 |
| Netherthorpe and Upperthorpe Community Alliance | Health & social care | 1998 |
| Nethorizon Ltd | Manufacturing | 2024 |
| Nettleton Plumbing & Heating Limited | Extraterritorial | 2024 |
| Network 999 Limited | Information & communication | 2004 |
| Network Consulting Services Limited | Professional & scientific | 2022 |
| Network Music Venue Limited | Arts & recreation | 2021 |
| Network North PCN Limited | Health & social care | 2021 |
| Network of Staff Supporters Limited | Health & social care | 2000 |
| Network Physio Ltd | Health & social care | 2011 |
| Network Road Safety Limited | Professional & scientific | 2007 |
| Network SC Limited | Administrative & support | 2017 |
| Network Services Limited | Information & communication | 2011 |
| Neuralechopulse Solutions Limited | Information & communication | 2025 |
| Neuralline Solutions Limited | Information & communication | 2025 |
| Neuritage AI Limited | Wholesale & retail | 2025 |
| Neuro Case Management Corporation Ltd | Health & social care | 2012 |
| Neuroconsult Limited | Health & social care | 2018 |
| Neurologic Europe Limited | Extraterritorial | 2011 |
| Neuromedicalrx Ltd | Health & social care | 2017 |
| Neuropsychological Assessment and Rehabilitation Ltd | Health & social care | 2024 |
| Neurovale Limited | Information & communication | 2025 |
| Neurovia Diagnostic Services Limited | Health & social care | 2026 |
| Neutrade Ltd | Wholesale & retail | 2018 |
| Nevaeh Care Ltd | Health & social care | 2013 |
| Neve Agency Ltd | Professional & scientific | 2022 |
| Neverland Antiques Ltd | Wholesale & retail | 2025 |
| Neville Beaufort Ltd | Real estate | 2025 |
| Neville Health Care Limited | Health & social care | 2002 |