| Morten MS Holding AS | | 2017 |
| Morten Øyen AS | Financial services | 2017 |
| Mosa Designlab AS | Professional & scientific | 2007 |
| Moskenesstraumen Ltd Nuf | Professional & scientific | 2006 |
| Mosodden Eiendom Da | Real estate | 2011 |
| Mosveen Huseierlag SA | Real estate | 1978 |
| Motorspeed AS | Wholesale & retail | 1988 |
| MPD Technology AS | Professional & scientific | 2015 |
| Murer Bergehagen AS | Construction | 2018 |
| Murer'N & Snekker'N AS | Construction | 2007 |
| Murmester Stakston AS | Construction | 2022 |
| Murmestre Delphin Og Klashaugen AS | Construction | 1997 |
| Musdalslien & Kolrud AS | Construction | 2012 |
| Musdalssetra Holding AS | Professional & scientific | 2005 |
| Musdalssætra Eiendom AS | Real estate | 2023 |
| Musdalssætra Invest AS | Real estate | 2023 |
| Mvse AS | Information & communication | 2021 |
| Myhre Invest AS | Professional & scientific | 1990 |
| Mythen Holding AS | Real estate | 2020 |
| Mythen Mek Verksted AS | Manufacturing | 2012 |
| Mølla Drift AS | Hospitality | 2021 |
| Møllefabrikken AS | Wholesale & retail | 2022 |
| Møllevegen 4 AS | Real estate | 2012 |
| Namuda AS | Information & communication | 2023 |
| Naprapat Andreassen AS | Health & social care | 2023 |
| Naprapat-En AS | Health & social care | 2012 |
| Narve Djupvik AS | Wholesale & retail | 1992 |
| Naturkompaniet AS | Wholesale & retail | 2013 |
| Naturlig Holding AS | Administrative & support | 2024 |
| NB Business Partner AS | Professional & scientific | 2020 |
| Nedre Myhren Da | Agriculture & fishing | 2019 |
| Nerwo AS | Real estate | 2009 |
| Nestra AS | Real estate | 1998 |
| Nichol AS | | 2017 |
| Nikkers AS | Hospitality | 2008 |
| Nils Fauske AS | Construction | 2016 |
| Nilsonn AS | | 2023 |
| Nilsson Cinematics AS | Information & communication | 2026 |
| Ninova Restaurant AS | Hospitality | 2023 |
| Nitidus Invest AS | Financial services | 2006 |
| NMS Estate AS | Real estate | 2021 |
| NMS Invest AS | Real estate | 2020 |
| NMS Utleie I AS | Real estate | 2022 |
| NMS Utleie II AS | Real estate | 2023 |
| NO9 Kafé AS | Hospitality | 2019 |
| Nodex Data AS | Information & communication | 2016 |
| Noisy Ninja Software AS | Information & communication | 2016 |
| Nokof Eiendom AS | Real estate | 2021 |
| Nometjenester AS | Transport & logistics | 2024 |
| Nopalope Garn AS | Wholesale & retail | 2023 |
| Nord Export AS | | 2022 |
| Nordby Holding AS | Other services | 2019 |
| Nordent AS | Manufacturing | 2007 |
| Nordic Online Retail AS | Wholesale & retail | 2023 |
| Nordic Sports AS | Wholesale & retail | 2025 |
| Nordic Thrill AS | Wholesale & retail | 2024 |
| Nordlunde Holding AS | | 2026 |
| Nordre Hov Invest AS | Real estate | 2021 |
| Nordseter Drift AS | Hospitality | 2003 |
| Nordseter Hyttegrend AS | Real estate | 1986 |
| Nordseter Invest AS | Hospitality | 2005 |
| Nordseter View AS | Real estate | 2026 |
| Nordås Bilder | Professional & scientific | 2013 |
| Norges Toppidrettsgymnas Lillehammer AS | Education | 2006 |
| Norges Toppidrettsgymnas Ungdomsskole Lillehammer AS | Education | 2015 |
| Norlom AS | Wholesale & retail | 2005 |
| Norse Camp AS | Wholesale & retail | 2019 |
| Norsk Biovarme AS | Wholesale & retail | 2019 |
| Norsk Camping SA | Professional & scientific | 2024 |
| Norsk Flid Husfliden AS | Manufacturing | 2001 |
| Norsk Flid Nettbutikk AS | Wholesale & retail | 2013 |
| Norsk Kjøtt AS | Wholesale & retail | 2022 |
| Norsk Plan Og Beredskap AS | Professional & scientific | 2004 |
| Norsk Varme AS | Construction | 2026 |
| Norske Fjellstuer Og Fjellhotell SA | Other services | 2021 |
| Norske Vandrehoteller AS | Administrative & support | 2012 |
| Norskilt Traffic Safety AS | Manufacturing | 2006 |
| Norutleie Eiendom AS | Real estate | 1999 |
| Novitas Consulting AS | Information & communication | 2015 |
| NR. 1 Trafikkskole AS | Education | 2009 |
| NRN AS | Administrative & support | 2024 |
| NT Kristiansen Holding AS | Wholesale & retail | 2005 |
| NTK Eiendom AS | Real estate | 2006 |
| Nuka Da | Administrative & support | 2016 |
| Nustad Holding AS | | 2025 |
| Nuyou AS | Wholesale & retail | 2014 |
| Ny Strek AS | Professional & scientific | 2017 |
| Nye Hudlegeklinikken Innlandet AS | Health & social care | 2024 |
| Nye Leger AS | Administrative & support | 2022 |
| Nye Paddys AS | Hospitality | 2011 |
| Nye Sagbakken Glasservice AS | Construction | 2025 |
| Nye Skog Og Hage AS | Wholesale & retail | 2009 |
| Nyhus Holding AS | Financial services | 2017 |
| Nymosvingen AS | Real estate | 2019 |
| Nymosvingen Legesenter AS | Health & social care | 2024 |
| Nordby Elektriske AS | Construction | 1985 |
| Norsk Turistutvikling AS | Professional & scientific | 1987 |
| Næringsavisen Da | Information & communication | 2024 |
| Nøss AS | Real estate | 1998 |
| O Borgen Eiendom AS | Real estate | 1999 |