| Nextwave IT Services Limited | Professional & scientific | 2018 |
| Nexus Capital Enterprises Ltd | Financial services | 2024 |
| Nexus Capital Holdings Ltd | Financial services | 2024 |
| Nexus Design & Build Ltd | Construction | 2026 |
| Nexus Ecommerce PVT Ltd | Wholesale & retail | 2026 |
| Nexus Vision Ltd | Wholesale & retail | 2025 |
| Nexus Wholesale Ltd | Manufacturing | 2019 |
| Nexustrader Limited | Wholesale & retail | 2026 |
| Nexwave Limited | Information & communication | 2024 |
| NF Developments Limited | Real estate | 2024 |
| NFA Partnerships Limited | Health & social care | 2008 |
| Nfag Limited | Health & social care | 2006 |
| Nfah Limited | Health & social care | 2006 |
| Nfak Limited | Wholesale & retail | 2023 |
| Nfap Limited | Health & social care | 2009 |
| NFG Group Limited | Information & communication | 2023 |
| NFK Resources Ltd | Professional & scientific | 2017 |
| Nfrar Ltd | Public administration | 2025 |
| NG Contract Coding Limited | Other services | 2015 |
| NH Browne Ltd | Wholesale & retail | 2023 |
| NH Ultrasound Ltd | Health & social care | 2026 |
| NHB Locum Ltd | Health & social care | 2023 |
| NHG Holdings Ltd | Financial services | 2025 |
| Nhussein Medics Limited | Health & social care | 2025 |
| Niam Limited | Wholesale & retail | 2022 |
| Niazi Sardar Enterprise Ltd | Wholesale & retail | 2026 |
| NIB Power Solutions Ltd | Construction | 2024 |
| NIB Properties Ltd | Real estate | 2023 |
| NIC FIX Ltd | Wholesale & retail | 2024 |
| NIC ZAP Ltd | Professional & scientific | 2025 |
| Niche Driving Services Ltd | Transport & logistics | 2013 |
| Niche Executive Travel Ltd | Transport & logistics | 2026 |
| Niche Labs Ltd | Wholesale & retail | 2025 |
| Nick & Evan Brothers Limited | Real estate | 2022 |
| Nick Anderton Limited | Information & communication | 2012 |
| Nick Astley (Bolton) Ltd | Administrative & support | 2012 |
| Nick Holmes Golf Ltd | Arts & recreation | 2025 |
| Nick Pain Limited | Construction | 2013 |
| Nick Pattichis Injury Law Limited | Professional & scientific | 2020 |
| Nick Ribchester Transport Ltd | Transport & logistics | 2021 |
| Nick Smith Motor Repairs Limited | Wholesale & retail | 2018 |
| Nick Waters Projects Ltd | Administrative & support | 2010 |
| Nicodistributors Ltd | Wholesale & retail | 2025 |
| Nicol & Walker Ltd | Administrative & support | 2022 |
| Nicola Foster PMU Ltd | Other services | 2024 |
| Nicola FOX Ltd | Information & communication | 2015 |
| Nicolas Morel Ltd | Administrative & support | 2021 |
| Nicolson Enterprises Ltd | Wholesale & retail | 2019 |
| Nicool Air Limited | Construction | 2013 |
| Nidland Limited | Real estate | 1986 |
| Nids Services Ltd | Wholesale & retail | 2024 |
| Niels Architecture Ltd | Construction | 2025 |
| Nife Beautyplus Ltd | Other services | 2025 |
| Nigel Finch (Contract Management) Limited | Administrative & support | 2024 |
| Nigel Peters Shopfitting Limited | Construction | 1987 |
| Nigel Whitehurst Transport Limited | Transport & logistics | 2013 |
| Nigels Eatery Limited | Hospitality | 2017 |
| Nigerian Community in Bolton CIC | Information & communication | 2025 |
| Nightingale Electrical (Bolton) Limited | Construction | 2011 |
| Nightingale Property Services (Bolton) Ltd | Construction | 2015 |
| Nihas Ltd | Wholesale & retail | 2021 |
| Nika Foods Limited | Hospitality | 2022 |
| Nimat Super Store Ltd | Wholesale & retail | 2024 |
| Nimble Improvement Limited | Professional & scientific | 2019 |
| Nimbr Limited | Information & communication | 2022 |
| Nimbus Bidco 3 Limited | Financial services | 2023 |
| Nimbus IT Consulting Limited | Information & communication | 2019 |
| Nimbus Midco 1 Limited | Financial services | 2014 |
| Nimbus Midco 3A Limited | Financial services | 2023 |
| Nimbus Midco 3B Limited | Financial services | 2023 |
| Nimbus Newco Limited | Financial services | 2026 |
| Nimbus Sports Ltd | Wholesale & retail | 2025 |
| Nimbus Topco Limited | Professional & scientific | 2014 |
| Nimtech | Water & waste | 1986 |
| Nimzovehiclesolutions Ltd | Wholesale & retail | 2025 |
| Nina Nails & Beauty Ltd | Other services | 2019 |
| Ninah Care Services Limited | Public administration | 2025 |
| Nine Blue Eggs Ltd | Wholesale & retail | 2023 |
| Nine Gorrells Way Limited | Professional & scientific | 2000 |
| Nine Worlds Limited | Real estate | 2022 |
| Niner Pubco. Ltd | Hospitality | 2026 |
| Nineteen 51 Ltd | Real estate | 2006 |
| Nineteenth Bolton Ltd | Construction | 2017 |
| Nineteenth Limited | Administrative & support | 2016 |
| NINETY9 Holdings Ltd | Real estate | 2020 |
| Ningbo North West Limited | Real estate | 2023 |
| Ninja Holdings Limited | Professional & scientific | 2020 |
| Ninja PIG TV Limited | Information & communication | 2022 |
| Ninth Investment Limited | Real estate | 2019 |
| Nipsa Housing Ltd | Real estate | 2022 |
| Niro Contracting Limited | Transport & logistics | 2024 |
| Nirvana Intelligent Systems Limited | Information & communication | 1991 |
| Nirvana Trading Ltd | Wholesale & retail | 2025 |
| NIS Motors Ltd | Wholesale & retail | 2026 |
| Nisa Haslingden Ltd | Wholesale & retail | 2023 |
| Nisar Khan Limited | Health & social care | 2009 |
| Nistra Group Ltd | Financial services | 2026 |
| Nitem Limited | Hospitality | 2024 |
| Nitro Motors Ltd | Wholesale & retail | 2023 |
| Nivedh Private Limited | Health & social care | 2017 |