| Negrills Jerk Ltd | Hospitality | 2018 |
| Nelide Ltd | Construction | 2018 |
| Nelsons Equestrian Limited | Wholesale & retail | 2017 |
| Nene Valley Upvc Repairs Ltd | Construction | 2015 |
| Neola Consulting Ltd. | Information & communication | 2014 |
| Nephro - Care UK Ltd | Health & social care | 2025 |
| NEST4U Ltd | Hospitality | 2017 |
| Nestnook Limited | Wholesale & retail | 2026 |
| Nethercote Ltd | Administrative & support | 2013 |
| Nettrust Limited | Information & communication | 2019 |
| Network Care Solutions Ltd | Construction | 2020 |
| Network Logic Ltd | Information & communication | 2022 |
| Network++ Ltd | Information & communication | 2016 |
| Neuralmimicry Ltd | Manufacturing | 2026 |
| Neurobeat (UK) Ltd | Information & communication | 2016 |
| Neurods Ltd | Professional & scientific | 2018 |
| Never Late HGV Ltd | Transport & logistics | 2025 |
| Nevon Pulse Limited | Wholesale & retail | 2025 |
| New AGE Healthcare Solutions Limited | Administrative & support | 2020 |
| New Bilton Stores Ltd | Wholesale & retail | 2022 |
| New Clifton Food and Wine Ltd | Wholesale & retail | 2020 |
| New Directions Coaching Ltd | Professional & scientific | 2010 |
| New Growth Ltd | Agriculture & fishing | 2025 |
| New Leaf Fitness and Wellbeing Limited | Arts & recreation | 2014 |
| New Leaf Solicitors Limited | Professional & scientific | 2017 |
| New Nigeria Congress Limited | Other services | 2019 |
| New Ruposhi Bangla Limited | Hospitality | 2018 |
| New Star Direct Limited | Wholesale & retail | 2013 |
| New Taxis of Rugby Ltd | Administrative & support | 2017 |
| New World Philatelic Jobbers Limited | Wholesale & retail | 1985 |
| Newbold Ltd. | Professional & scientific | 2011 |
| Newman Property Portfolio Limited | Real estate | 2020 |
| Newman Property Services Limited | Real estate | 2000 |
| Newman Residential Lettings Limited | Professional & scientific | 2011 |
| Newton Plastering Ltd | Construction | 2026 |
| Newway Drive Ltd | Transport & logistics | 2019 |
| Nex-Gen Environmental Services Ltd | Water & waste | 2017 |
| Nex-Phase Contractors Ltd | Manufacturing | 2023 |
| Next Spec Autos Ltd | Wholesale & retail | 2025 |
| Nextinfo Technologies Limited | Information & communication | 2021 |
| Nexus Vanguard Ltd | Transport & logistics | 2026 |
| NG Drivers Ltd | Administrative & support | 2008 |
| Nhmcl Limited | Water & waste | 2008 |
| Niamhscleans Ltd | Administrative & support | 2025 |
| Nicard Care Solutions Ltd | Public administration | 2024 |
| Nice Living Investments Ltd | Real estate | 2022 |
| Niche Wellbeing Clinic Ltd | Health & social care | 2022 |
| Nick Eccles Roadside Acquisitions Limited | Real estate | 2021 |
| Nickols Properties Limited | Real estate | 2018 |
| Nicocel Transport Ltd | Transport & logistics | 2026 |
| Nicola Logistics Ltd | Transport & logistics | 2024 |
| Nifood Technical Support Limited | Manufacturing | 2014 |
| Nifty Direct Limited | Wholesale & retail | 2016 |
| Nigel's Odour Controls Limited | Wholesale & retail | 2025 |
| Night Porter Group Ltd | Hospitality | 2022 |
| Nightingales Group Limited | Financial services | 2022 |
| Nightingales Motorcycles LLP | | 2025 |
| Nikfekruk Ltd | Other services | 2014 |
| Nilayam Limited | Real estate | 2025 |
| Nimbarta Limited | Transport & logistics | 2017 |
| Niner & Salter Limited | Administrative & support | 2017 |
| Ninijas Limited | Health & social care | 2023 |
| Ninja Access Ltd | Construction | 2017 |
| Nisa Associates Ltd | Wholesale & retail | 2025 |
| Nish Enterprises Ltd | Wholesale & retail | 2023 |
| Nishan Property Ltd | Real estate | 2020 |
| Nishanth Limited | Transport & logistics | 2021 |
| Nisi ENT (OPS) Ltd | Transport & logistics | 2020 |
| Niyati Homes Ltd | Real estate | 2018 |
| NJ24 Ltd | Other services | 2024 |
| NJA Properties Limited | Real estate | 2019 |
| Njoyart Limited | Arts & recreation | 2019 |
| NK Smart Solutions PVT Ltd | Professional & scientific | 2024 |
| NLM & Associates Limited | Real estate | 2016 |
| NLM Hospitality Ltd | Professional & scientific | 2022 |
| NM Masonry Ltd | Construction | 2014 |
| Nmvk Limited | Real estate | 2022 |
| NMX 217 Ltd | Transport & logistics | 2020 |
| NN Logistics Ltd | Transport & logistics | 2025 |
| NN Ventures Limited | Construction | 2012 |
| NO Limits Gym Rugby Limited | Arts & recreation | 2025 |
| Noah Gold Collection Ltd | Wholesale & retail | 2026 |
| Noah's ARK Transport Ltd | Transport & logistics | 2026 |
| Nobby Thebe Healthcare Limited | Health & social care | 2022 |
| Nobodysdriving Limited | Transport & logistics | 2017 |
| Nolex Care Ltd | Administrative & support | 2012 |
| Nomad Gears & Grains Ltd | Hospitality | 2026 |
| Non-Court Dispute Resolution Ltd | Information & communication | 2025 |
| Noob Gamer Ltd | Wholesale & retail | 2024 |
| Nord Construct Limited | Construction | 2025 |
| Norfolk Barn Management Company Limited | Households | 2019 |
| Norman Clark (Gunsmiths) Limited | Manufacturing | 2005 |
| Northern Build & Renovation Ltd | Construction | 2016 |
| Northern Home Care Ltd | Health & social care | 2006 |
| Norven Polymers Ltd | Water & waste | 2026 |
| Noshina and ALI Limited | Wholesale & retail | 2012 |
| Nosquattuor Ltd | Professional & scientific | 2025 |
| NOT a CV Ltd | Information & communication | 2019 |
| Notio Limited | Professional & scientific | 2009 |
| Nova Blossom Ltd | Manufacturing | 2026 |