| Next Level AS | Information & communication | 2017 |
| NF Martinsen AS | | 2022 |
| NFP AS | Wholesale & retail | 2017 |
| NG Eiendom Agder AS | Real estate | 1996 |
| Nhgaard AS | Professional & scientific | 1988 |
| Nias Holding AS | Information & communication | 1997 |
| Nibbler AS | Hospitality | 2021 |
| Nicasino AS | Education | 2024 |
| Nice Anest AS | Health & social care | 2024 |
| Nich Invest AS | | 2020 |
| Nick Holding AS | Wholesale & retail | 2023 |
| Nicki Studios AS | Wholesale & retail | 2017 |
| Nico Blikk & Tak AS | Construction | 2014 |
| Nieblok Invest AS | Real estate | 1998 |
| Nielsen Global Consult AS | Professional & scientific | 2018 |
| Nig AS | Construction | 2010 |
| Nig Holding AS | | 2011 |
| Nightpay Norge AS | Information & communication | 2020 |
| Nika Invest AS | Real estate | 2006 |
| Niknil AS | Professional & scientific | 2019 |
| Nilam Eiendom AS | Real estate | 2022 |
| Nilgard Holding AS | | 2024 |
| Nils Fidjelandsvei 5-7 AS | Real estate | 2020 |
| Nilsen Hodl AS | Administrative & support | 2025 |
| Nilsson Capital AS | | 2025 |
| Nimas Invest AS | Health & social care | 2021 |
| Nina G. H. AS | Real estate | 2018 |
| Nina G.H. Holding AS | Real estate | 2018 |
| Ninca Invest AS | | 2020 |
| Ninjana AS | Information & communication | 2023 |
| Ninjana Fiksjon AS | Information & communication | 2023 |
| Nisa Eiendom AS | Construction | 2022 |
| Niso AS | | 2026 |
| Nita Holding AS | Professional & scientific | 2016 |
| Nitram Holding AS | Financial services | 2005 |
| Nivello AS | Information & communication | 2026 |
| Nju Produksjoner AS | Information & communication | 2025 |
| NK Enterprises AS | Administrative & support | 2011 |
| NK Real Estate AS | Administrative & support | 2017 |
| NK Sande Holding AS | Financial services | 2015 |
| No 1 Gave Og Interiør Kristiansand AS | Wholesale & retail | 2000 |
| No 1 Holding AS | Wholesale & retail | 2020 |
| No Ideas Gaming AS | Information & communication | 2025 |
| NO1 Concept AS | Wholesale & retail | 2020 |
| Noatun Eiendom AS | Professional & scientific | 2005 |
| Nodeland Utvikling AS | Real estate | 2005 |
| Nodeviga Grafikk AS | Wholesale & retail | 2023 |
| Noelle Capital AS | | 2026 |
| Nofish AS | Information & communication | 2017 |
| Noha Holding AS | Construction | 2013 |
| Nolan Consulting AS | Professional & scientific | 2026 |
| Nolimits Holding AS | Administrative & support | 2019 |
| Nomades AS | Hospitality | 2022 |
| Nomeland Næringsbygg AS | Real estate | 2017 |
| Nondance AS | Arts & recreation | 2023 |
| Nor Lines Agder AS | Transport & logistics | 2025 |
| Nor Utvikling AS | Professional & scientific | 2008 |
| Nor Vekst AS | Professional & scientific | 2015 |
| Nor-Operation AS | Administrative & support | 2024 |
| Norarc AS | Information & communication | 2020 |
| Norask Distribusjon AS | Transport & logistics | 2021 |
| Norbreez Holding AS | Professional & scientific | 2007 |
| Nord Destination Management Company AS | Administrative & support | 2013 |
| Nord Software AS | Information & communication | 2025 |
| Nord Tolk AS | Professional & scientific | 2013 |
| Nordaroo AS | | 2026 |
| Norden Brands AS | Wholesale & retail | 2025 |
| Norden Venture Group AS | | 2019 |
| Nordevia AS | Wholesale & retail | 2026 |
| Nordhagens AS | | 2025 |
| Nordic Arena Sør AS | Professional & scientific | 2014 |
| Nordic Balance AS | Wholesale & retail | 2019 |
| Nordic Boxing Center AS | Arts & recreation | 2022 |
| Nordic Brands AS | Wholesale & retail | 2017 |
| Nordic Digital Alliance AS | Information & communication | 2006 |
| Nordic Green Capital AS | Information & communication | 2019 |
| Nordic Heatsystems AS | Construction | 2016 |
| Nordic July Holding AS | | 2026 |
| Nordic Nexus AS | Professional & scientific | 2026 |
| Nordic Partners AS | Real estate | 2021 |
| Nordic Partners Forvaltning AS | Administrative & support | 2017 |
| Nordic Power and Steel Solution AS | Professional & scientific | 2024 |
| Nordic Retail Property AS | Real estate | 2020 |
| Nordic Trademann AS | Real estate | 1986 |
| Nordic Travel AS | Real estate | 2025 |
| Nordic Uniform Group AS | Professional & scientific | 2024 |
| Nordic Waterways AS | Administrative & support | 2025 |
| Nordisk Betongteknikk AS | Construction | 2021 |
| Nordisk Boligstyling AS | Professional & scientific | 2023 |
| Nordisk Byggdistribusjon AS | Wholesale & retail | 2006 |
| Nordisk Epoksy- & Terrazzoteknikk AS | Construction | 2012 |
| Nordisk Epoxy Og Terrazzoteknikk AS | Information & communication | 2018 |
| Nordisk Inntakskontor AS | Education | 2020 |
| Nordisk Ståldistribusjon AS | Wholesale & retail | 2024 |
| Nordlys Kapital AS | | 2024 |
| Nordre Kullerød 15 AS | Real estate | 2013 |
| Nordrill AS | Wholesale & retail | 2003 |
| Nordstjerne Holding AS | | 2025 |
| Nordstråle AS | Real estate | 2020 |
| Nordvegen Business Partner AS | Professional & scientific | 2022 |