| Nis Kom 2020 AS | Professional & scientific | 2020 |
| Nistad & Aasen Bygg Ans | Construction | 2025 |
| Nistad Eiendom AS | Real estate | 2015 |
| Nistad Gruppen Gardermoen AS | Real estate | 2017 |
| Nistad Gruppen Holding AS | Real estate | 2018 |
| Nistad Gruppen Marken AS | Real estate | 2017 |
| Nistad Halodi AS | | 2023 |
| Nistad M3E AS | Real estate | 2019 |
| Nistad Maritime AS | Transport & logistics | 2005 |
| Nistad PD AS | | 2024 |
| Nistad Utbygging AS | Real estate | 2000 |
| Nistadgruppen AS | Real estate | 2018 |
| Nitcon AS | Information & communication | 2002 |
| Niteo Holding AS | Financial services | 2016 |
| Nivicon Utvikling AS | Professional & scientific | 2013 |
| NK Konsulent AS | Administrative & support | 2020 |
| NK12B AS | Hospitality | 2025 |
| NKA14 AS | Real estate | 2020 |
| NKT Holding AS | Information & communication | 2022 |
| Nla Eiendom AS | Real estate | 2020 |
| Nla Høgskolen AS | Education | 2009 |
| Nle Munchsgt 5B AS | Real estate | 1941 |
| NLM Eiendom Bergen AS | Real estate | 2006 |
| NMS Eiendom Bergen AS | Real estate | 2018 |
| NMS Group AS | Construction | 2012 |
| NMT Fremtid AS | | 2024 |
| NNL Management Invest AS | Financial services | 2020 |
| NNP Parsell 13 AS | Real estate | 2018 |
| NNP Parsell 14 AS | Real estate | 2019 |
| NNP Parsell 24 AS | Real estate | 2024 |
| NNP Parsell 25 AS | Real estate | 2025 |
| NNP Parsell 26 AS | Real estate | 2025 |
| NNP Parsell 27 AS | Real estate | 2025 |
| NNP Parsell 28 AS | Real estate | 2026 |
| NNP Parsell 7 AS | Real estate | 2016 |
| NNP Vann- Og Avløp AS | Construction | 2016 |
| No Escape AS | Arts & recreation | 2018 |
| No Stress AS | Hospitality | 2011 |
| No Worries Supreme Catering AS | Hospitality | 2014 |
| NO13 Drift AS | Hospitality | 2022 |
| Noa Advisors AS | Professional & scientific | 2023 |
| Noage Nordic Biotech AS | Wholesale & retail | 2024 |
| Nobel Lyd AS | Information & communication | 2023 |
| Nobel Media AS | Professional & scientific | 2023 |
| Node Create AS | Information & communication | 2016 |
| Node Holding AS | Professional & scientific | 2017 |
| Node One AS | Financial services | 2018 |
| Node Rådgivende Ingeniører AS | Professional & scientific | 2017 |
| Nogenlunde AS | | 2026 |
| Nogi AS | Real estate | 2005 |
| NOL1 AS | | 2020 |
| Nomadic Chartering AS | Transport & logistics | 2008 |
| Nomi Eiendom AS | Real estate | 2025 |
| Noomas AS | Professional & scientific | 2015 |
| Noram Holding AS | | 2025 |
| Norbreez Travel AS | Arts & recreation | 2025 |
| Norce Holding AS | Professional & scientific | 2023 |
| Norce Research AS | Professional & scientific | 2017 |
| Norce Risavika Eiendom AS | Professional & scientific | 2020 |
| Norchem Lwo Holding AS | Financial services | 2020 |
| Norchem Norge AS | Financial services | 2021 |
| Norchem Trading AS | Transport & logistics | 1999 |
| Norcon Bolig AS | Real estate | 2015 |
| Nordapp AS | Information & communication | 2025 |
| Nordberg Holding AS | | 2023 |
| Nordboe Holding AS | Information & communication | 2023 |
| Nordcap AS | Professional & scientific | 2005 |
| Nordcat Offshore AS | Wholesale & retail | 2026 |
| Nordcode AS | Information & communication | 2025 |
| Nordea Aktuartjenester Norge AS | Financial services | 1999 |
| Nordea Investment Management AB Nuf | Financial services | 2005 |
| Nordea Liv Eiendom AS | Real estate | 2012 |
| Nordea Liv Forsikring AS | Financial services | 1990 |
| Nordens AS | Wholesale & retail | 2024 |
| Nordfleet AS | Transport & logistics | 2026 |
| Nordgulen AS | | 2026 |
| Nordhagen Finans AS | Professional & scientific | 2008 |
| Nordhordland Maritime Næringspark AS | Real estate | 2011 |
| Nordhordland Næringspark AS | Real estate | 2013 |
| Nordic Additional Funding AS | Financial services | 2010 |
| Nordic Brand Retail Norge AS | Wholesale & retail | 2022 |
| Nordic Circles AS | Professional & scientific | 2020 |
| Nordic Cognac Import AS | Wholesale & retail | 2024 |
| Nordic Energy Holding AS | | 2026 |
| Nordic Energy Norway AS | Real estate | 2010 |
| Nordic Fashion House AS | Manufacturing | 2017 |
| Nordic Gateway AS | Administrative & support | 2014 |
| Nordic Group Holding AS | Real estate | 2005 |
| Nordic Hairclinics AS | Health & social care | 2024 |
| Nordic Investment Norway AS | Real estate | 2026 |
| Nordic Key AS | Real estate | 2022 |
| Nordic Marine Insurance Consultants AS | Professional & scientific | 2023 |
| Nordic Mind AS | Professional & scientific | 2006 |
| Nordic Mobility Services AS | Professional & scientific | 2023 |
| Nordic Response AS | Education | 2025 |
| Nordic Retail AS | Wholesale & retail | 2008 |
| Nordic Social Group AS | Information & communication | 2017 |
| Nordic System Engineering AS | Professional & scientific | 1982 |
| Nordic Tech Norway AS | Real estate | 2026 |
| Nordic Trading Company AS | Wholesale & retail | 2014 |