| NSM Swiss Life Investment & Consulting LP | | 2022 |
| Nsoft LP | | 2015 |
| Nsomnia Networks LP | | 2016 |
| Nsonify Ltd | Manufacturing | 2021 |
| Nspg Limited | Professional & scientific | 2003 |
| NSR Edinburgh Property Ltd | Hospitality | 2024 |
| NT Development LP | | 2013 |
| NT Vision Ltd | Health & social care | 2016 |
| NTA Productions Ltd | Administrative & support | 2019 |
| Ntakwa Ltd | Information & communication | 2025 |
| NTE Systems LP | | 2012 |
| Ntekh Ltd | Professional & scientific | 2012 |
| NTL Glasgow | Information & communication | 1981 |
| NTM Opportunistic Real Estate Partners II Carry LP | | 2015 |
| NTM Opportunistic Real Estate Partners II LP | | 2015 |
| NTS Tech LP | | 2015 |
| NU Buds Ltd | Professional & scientific | 2025 |
| NU Data Insights Ltd | Information & communication | 2020 |
| Nu-Innovations Construction Ltd | Construction | 2017 |
| Nu-Linx Limited | Professional & scientific | 1999 |
| Nualign, LP | | 2012 |
| Nuance Collaborative Ltd | Professional & scientific | 2026 |
| Nuar Capital LP | | 2013 |
| Nuat Ltd | Arts & recreation | 2025 |
| Nubian Locs Ltd | Other services | 2021 |
| Nucana Biomed Trustee Company Limited | Professional & scientific | 2011 |
| Nuclear Liabilities Fund Limited | Public administration | 1996 |
| Nucleus Trustee Company Limited | Financial services | 2006 |
| Nudraw PVT Ltd | Wholesale & retail | 2025 |
| NUE Offshore - Netty Limited | Manufacturing | 2023 |
| NUE Offshore Resources UK Limited | Wholesale & retail | 2021 |
| Nuevo Cruzio Today LP | | 2017 |
| Nufarm Pensions General Partner Limited | Financial services | 2014 |
| Nufarm Pensions Scottish Limited Partnership | | 2014 |
| Nuiaurum Holding LP | | 2023 |
| Nuifish Limited | Information & communication | 2012 |
| Nulbyte Software Ltd | Information & communication | 2026 |
| Nullpay LP | | 2017 |
| Numa Direct Ltd | Information & communication | 2025 |
| Numatone Industries LP | | 2013 |
| Number 1 Alba Claims Limited | Professional & scientific | 2017 |
| Number 44 Hotel Ltd | Hospitality | 2025 |
| Number 44 Services Ltd | Administrative & support | 2025 |
| NUMBER80 Ltd | Real estate | 2019 |
| Numbers LAB Limited | Professional & scientific | 2014 |
| Numbersmiths Consulting Ltd | Professional & scientific | 2016 |
| Numbertelling Ltd | Information & communication | 2015 |
| Numen Limited | Information & communication | 2024 |
| Numeric Corporate LP | | 2014 |
| Numeriq Limited | Information & communication | 2003 |
| Numero UNO Apps Development Ltd | Information & communication | 2018 |
| Numidia Films Limited | Information & communication | 2009 |
| Numinous Ways Ltd | Health & social care | 2023 |
| Numis Collect LP | | 2013 |
| Numodo Limited | Professional & scientific | 2015 |
| Nunraw Chapel Limited | Other services | 2024 |
| Nunraw Development Limited | Other services | 2014 |
| Nuovoarts LP | | 2015 |
| NUR Official Limited | Wholesale & retail | 2023 |
| Nurevo Technology Limited | Professional & scientific | 2026 |
| Nuri Holding LP | | 2015 |
| Nuria BOJ Limited | Professional & scientific | 2020 |
| Nursing Nexus Limited | Information & communication | 2025 |
| Nurture Nursery Holdings Limited | Professional & scientific | 2025 |
| Nurwes Trading LP | | 2016 |
| Nushape Limited | Health & social care | 2014 |
| Nustar Corporation L.P. | | 2010 |
| Nutberry Wind Energy Limited | Energy | 2003 |
| Nutmeg Media Limited | Information & communication | 2022 |
| Nutra Trade LP | | 2017 |
| Nutrend Office & Contract Furniture Limited | Wholesale & retail | 2000 |
| Nutrigen SET LP | | 2016 |
| Nutriguru Limited | Health & social care | 2017 |
| Nutrimed & Co | | 1992 |
| Nutrio Health and Wellness Ltd | Wholesale & retail | 2025 |
| Nutripanda Ltd | Health & social care | 2019 |
| Nutrire Ltd | Other services | 2015 |
| Nuuri Ltd | Information & communication | 2024 |
| Nuvana Ltd | Real estate | 2025 |
| Nuventria.Ai Limited | Information & communication | 2025 |
| Nuvo Medsurg LP | | 2016 |
| Nuvola Edinburgh Ltd | Hospitality | 2025 |
| Nuvulu Ltd | Information & communication | 2025 |
| Nuvven Ltd | Information & communication | 2018 |
| Nuwest Alliance LP | | 2016 |
| NV3 FP LP | | 2023 |
| Nvable Limited | Information & communication | 2005 |
| Nvgas Roadside Retail Limited | Wholesale & retail | 2023 |
| NVM III FP GP LLP | | 2017 |
| NVM III FP LP | | 2017 |
| NVS Food Ltd | Hospitality | 2025 |
| Nvsh Holdco Limited | Administrative & support | 2001 |
| NW Distribution Limited | Transport & logistics | 2012 |
| NWS Trust Limited | Financial services | 1946 |
| Nxgn Golf Limited | Manufacturing | 2024 |
| Nxgo Ltd | Wholesale & retail | 2025 |
| NXJ Consulting Ltd | Professional & scientific | 2023 |
| NXT Capital Limited | Real estate | 2025 |
| NY Holdings Limited | Real estate | 2007 |
| NY Property Investments Ltd | Real estate | 2023 |