| Northbridge Ventures AS | | 2026 |
| Northshore Design AS | Professional & scientific | 2025 |
| Nortrack Services AS | Professional & scientific | 2014 |
| Nortrade Auto AS | Wholesale & retail | 2026 |
| Nortvedt Invest AS | Financial services | 2007 |
| Norulf AS | Wholesale & retail | 2001 |
| Norus International AS | Professional & scientific | 2007 |
| Norverden AS | Professional & scientific | 2025 |
| Norvom AS | Wholesale & retail | 2021 |
| Norway Offshore Aquaculture AS | Agriculture & fishing | 2025 |
| Norway Offshore Salmon AS | Agriculture & fishing | 2025 |
| Norwegian Blue AS | Information & communication | 2014 |
| Norwegian Creations AS | Professional & scientific | 2012 |
| Norwegian Efoil Company AS | Wholesale & retail | 2021 |
| Norwegian Fishfarming Technologies AS | Agriculture & fishing | 2011 |
| Norwegian Fishoil AS | Wholesale & retail | 2006 |
| Norwegian Fjords Holiday AS | Real estate | 2020 |
| Norwegian Fuel AS | Wholesale & retail | 2020 |
| Norwegian Green AS | Wholesale & retail | 2013 |
| Norwegian Green Holding AS | Real estate | 2019 |
| Norwegian Petroleum Services AS | Real estate | 2016 |
| Norwegian Tankers AS | Transport & logistics | 2007 |
| Norwich Holding AS | Real estate | 2013 |
| Nossum Holding AS | | 2026 |
| Nossum Invest AS | | 2026 |
| Not Sectioned Holding AS | Real estate | 2026 |
| Notiva AS | Information & communication | 2025 |
| Notorious Invest AS | | 2023 |
| Nottingham Place AS | Real estate | 2016 |
| Nov Næring AS | Real estate | 2016 |
| Nova Bygg AS | Construction | 2016 |
| Nova Ceylon AS | | 2025 |
| Nova Corporate AS | Professional & scientific | 2008 |
| Nova Eiendomsmegling AS | Real estate | 2009 |
| Nova Entertainment AS | Arts & recreation | 2013 |
| Noventra AS | Wholesale & retail | 2025 |
| Now Import AS | Wholesale & retail | 2018 |
| Now IT AS | Information & communication | 2019 |
| Nowhow AS | Information & communication | 2015 |
| NP Utvikling AS | Real estate | 2023 |
| NRG Holding AS | Real estate | 2019 |
| NRH Trondheim AS | Real estate | 2003 |
| NRL Invest AS | | 2019 |
| NSD Holding AS | | 2025 |
| NSF AS | Professional & scientific | 2013 |
| Ntnu Samfunnsforskning AS | Professional & scientific | 2003 |
| Ntnu Technology Transfer AS | Administrative & support | 2003 |
| Nu Art AS | Arts & recreation | 2013 |
| Nubbis AS | Manufacturing | 2016 |
| Nucleo AS | Wholesale & retail | 2020 |
| Nuculus AS | Professional & scientific | 2017 |
| Nuet Marketing AS | Professional & scientific | 2022 |
| Nukleus AS | Professional & scientific | 2000 |
| Nullum Tributum AS | Professional & scientific | 2021 |
| Numeria AS | Professional & scientific | 2022 |
| Numi Scandinavia AS | Wholesale & retail | 2019 |
| Nummebo Holding AS | | 2024 |
| Numra AS | Information & communication | 2016 |
| Nunelva AS | Water & waste | 2024 |
| Nuria Espallargas AS | Financial services | 2014 |
| Nursing Norway AS | Education | 2023 |
| Nutools AS | Information & communication | 2014 |
| Nutriaq AS | Water & waste | 2019 |
| Nutrimar Holding AS | Agriculture & fishing | 2006 |
| Nutrishell Holding AS | Manufacturing | 2024 |
| Nuvia AS | Information & communication | 2023 |
| NW Utvikling AS | Real estate | 2016 |
| Nxtmedia Lab AS | Professional & scientific | 2016 |
| Ny Giv Person- Og Organisasjonsutvikling AS | Education | 2002 |
| Ny Livsstil AS | Wholesale & retail | 2016 |
| Ny Media Holding AS | | 2022 |
| Ny-Bo AS | Real estate | 2007 |
| Nyb Partner Da | Professional & scientific | 2023 |
| Nyborg Handelspark AS | Real estate | 2003 |
| Nyborg Handelspark Holding AS | Real estate | 2008 |
| Nybrot Consulting AS | Professional & scientific | 2026 |
| Nye Benilla AS | Professional & scientific | 2025 |
| Nye Drumshop AS | Wholesale & retail | 2022 |
| Nye Ginntech Holding AS | | 2025 |
| Nye Gitte & Thomas AS | Health & social care | 2026 |
| Nye Hjorten Teater AS | Arts & recreation | 2020 |
| Nye Høyder AS | Professional & scientific | 2005 |
| Nye Høyder Holding AS | Administrative & support | 2001 |
| Nye Invest AS | | 2021 |
| Nye Jacobsen Og Svart AS | Hospitality | 2021 |
| Nye Nidaros Holding AS | Real estate | 2022 |
| Nye Replab AS | Other services | 2022 |
| Nye Røroshytta AS | Construction | 2026 |
| Nye Selsbakkhøgda AS | Real estate | 2023 |
| Nye Støren Industrieiendom AS | Real estate | 2015 |
| Nye Ursus Holding AS | | 2024 |
| Nye Valentinlyst AS | Real estate | 2018 |
| Nye Øya AS | Real estate | 2022 |
| Nygata 100 AS | Real estate | 2016 |
| Nygata 10C Bolig AS | Real estate | 2019 |
| Nygata 19 AS | Real estate | 2013 |
| Nygata 2 II AS | Real estate | 2014 |
| Nygata 26 AS | Real estate | 2025 |
| Nygata 26 B AS | Real estate | 2025 |
| Nygata 28C AS | Real estate | 2025 |