| MKD Drift AS | Health & social care | 2022 |
| MKD Holding AS | Health & social care | 2017 |
| MLC Invest AS | Financial services | 2013 |
| MLM Utvikling AS | Professional & scientific | 2016 |
| Modus Kvadraten AS | Arts & recreation | 2015 |
| Mola Anleggsservice AS | Manufacturing | 2015 |
| Mola Holding AS | Manufacturing | 2015 |
| Molander Grund Och Bygg AB | Construction | 2020 |
| Momspartner Holding AS | Professional & scientific | 2024 |
| Momspartner Norway AS | Professional & scientific | 2012 |
| Mondelez World Travel Retail Ltd | Wholesale & retail | 2022 |
| Monte Olivo Holding AS | Professional & scientific | 2025 |
| Motonor AS | Wholesale & retail | 2021 |
| Motor Og Industriservice AS | Construction | 2024 |
| MP Byggkonsult AS | Professional & scientific | 2025 |
| MP Mobility AS | Professional & scientific | 2023 |
| Mulstad Bygg & Eiendom AS | Construction | 2023 |
| Multibetong AS | Construction | 2015 |
| Multicast Solutions AS | Information & communication | 2005 |
| Mva AS | Financial services | 2014 |
| Mxi Corp Nuf | Manufacturing | 2010 |
| Mygland Kraft AS | Energy | 2012 |
| Myklevold AS | Wholesale & retail | 2010 |
| Na Sykehusveien 8 AS | Real estate | 2026 |
| Nait AS | Information & communication | 2022 |
| Namek AS | Manufacturing | 1993 |
| Nanize AS | Professional & scientific | 2019 |
| Nano Transport AS | Transport & logistics | 2023 |
| Naprapatsenteret I Nord AS | Health & social care | 2007 |
| Narnor AS | Hospitality | 2025 |
| Narvik 1 Dagligvare AS | Wholesale & retail | 2023 |
| Narvik Akson AS | Health & social care | 2023 |
| Narvik Anlegg AS | Construction | 2021 |
| Narvik Apartments AS | Real estate | 2021 |
| Narvik Batteri AS | Professional & scientific | 2021 |
| Narvik Bedriftshelsetjeneste SA | Health & social care | 1982 |
| Narvik Bilutleie AS | Administrative & support | 2026 |
| Narvik Blikk CHR Føre AS | Construction | 1969 |
| Narvik Boligutvikling AS | Real estate | 2000 |
| Narvik Bowling Og Lekeland AS | Arts & recreation | 2006 |
| Narvik Bringeservice Da | Transport & logistics | 2003 |
| Narvik Bulkterminal AS | Transport & logistics | 2017 |
| Narvik Bygg AS | Construction | 2017 |
| Narvik Bygg Prosjekt AS | Real estate | 2018 |
| Narvik Car Rental AS | Administrative & support | 2026 |
| Narvik Dagligvarer AS | Wholesale & retail | 2021 |
| Narvik Dekkservice AS | Wholesale & retail | 2021 |
| Narvik Eiendom AS | Real estate | 2009 |
| Narvik Eiendomskompleks AS | Real estate | 2006 |
| Narvik Eiendomsmegling AS | Real estate | 2026 |
| Narvik Eiendomsservice AS | Real estate | 2020 |
| Narvik El AS | Construction | 2018 |
| Narvik Event AS | Administrative & support | 2012 |
| Narvik Flis Og Ovnsmontasje AS | Construction | 2013 |
| Narvik Flyklubb Ba | Other services | 2003 |
| Narvik Foreldrelagsbarnehage SA | Education | 1993 |
| Narvik Fotklinikk AS | Health & social care | 2012 |
| Narvik Frisør AS | Other services | 2022 |
| Narvik Fysioterapi Og Fotklinikk AS | Real estate | 2012 |
| Narvik Helseform AS | Health & social care | 2019 |
| Narvik Helseklinikk Da | Health & social care | 2016 |
| Narvik Hobby AS | Wholesale & retail | 2016 |
| Narvik Holding AS | Real estate | 2014 |
| Narvik Hotel Wivel AS | Hospitality | 2019 |
| Narvik Hotelldrift AS | Hospitality | 1995 |
| Narvik Kapital AS | Financial services | 2004 |
| Narvik Kjernekraft AS | Energy | 2025 |
| Narvik Kontorsenter AS | Wholesale & retail | 2016 |
| Narvik Kulturhus AS | Arts & recreation | 2005 |
| Narvik Laserklinikk AS | Health & social care | 2022 |
| Narvik Leker & Kreativitet AS | Wholesale & retail | 2017 |
| Narvik Logopedi AS | Health & social care | 2025 |
| Narvik Lys AS | Education | 2007 |
| Narvik Marina AS | Wholesale & retail | 2011 |
| Narvik Maskin Og Liftutleie AS | Administrative & support | 2013 |
| Narvik Multimedia AS | Professional & scientific | 2008 |
| Narvik Multiservice AS | Administrative & support | 2019 |
| Narvik Næringspark AS | Transport & logistics | 1997 |
| Narvik Spa AS | Other services | 2010 |
| Narvik Spektrum AS | Real estate | 2005 |
| Narvik Spektrum Drift AS | Real estate | 2008 |
| Narvik Stadiondrift AS | Arts & recreation | 2010 |
| Narvik Sustainable Technologies AS | Professional & scientific | 2015 |
| Narvik Taxisentral SA | Transport & logistics | 1965 |
| Narvik Test & Innovation Center AS | Professional & scientific | 2022 |
| Narvik Thai & Sushi AS | Hospitality | 2012 |
| Narvik Utleie AS | Real estate | 2021 |
| Narvik Utvikling AS | Real estate | 2017 |
| Narvik Velværesenter Ans | Health & social care | 2004 |
| Narvik VM 2029 AS | Arts & recreation | 2016 |
| Narvik Yoga AS | Arts & recreation | 2014 |
| Narvikeiendommen AS | Real estate | 2021 |
| Narvikfjellet Allmenn AS | Hospitality | 2014 |
| Narvikfjellet AS | Hospitality | 2019 |
| Narvikfjellet Eiendom AS | Real estate | 2025 |
| Narvikfjellet Feriepark AS | Hospitality | 2018 |
| Narvikfjord AS | Arts & recreation | 2025 |
| Narvikgården AS | Real estate | 2001 |
| Narvikgården Utleiebygg AS | Real estate | 2008 |
| Narvikhallen AS | Real estate | 1993 |