| Kaivegen 20 AS | Real estate | 2024 |
| Kamasi Invest AS | Real estate | 2021 |
| Kapp Norway AS | Wholesale & retail | 2025 |
| Karma Utleige AS | Real estate | 2013 |
| Kef- AS | Real estate | 2024 |
| Kern Profilering AS | Manufacturing | 2003 |
| Ketok AS | Real estate | 2023 |
| Kieffer AS | Professional & scientific | 2012 |
| Kijani AS | Professional & scientific | 2019 |
| Kikk Ut AS | Real estate | 2017 |
| Kilana AS | Professional & scientific | 2017 |
| Kilana Consulting AS | Professional & scientific | 2021 |
| Kims Holding AS | Real estate | 2011 |
| Kingdom Finance AS | | 2025 |
| Kiropraktikk Og Helse for Alle AS | Health & social care | 2012 |
| Klar Media AS | Wholesale & retail | 2021 |
| Kleppe Fisk AS | Agriculture & fishing | 2017 |
| Kleven & Co AS | Information & communication | 1997 |
| Kleven & Co Invest AS | | 2022 |
| Kleven Godø AS | | 2021 |
| Kleven Maritime Contracting AS | Administrative & support | 2008 |
| Kleven Maritime Technology AS | Professional & scientific | 1999 |
| Kleven Verft AS | Manufacturing | 2019 |
| Kniven Invest AS | | 2021 |
| Kodet AS | Information & communication | 2012 |
| Kontira AS | Information & communication | 2024 |
| Kopperstad Consultancy AS | Professional & scientific | 2023 |
| Kopperstad Group AS | Professional & scientific | 2023 |
| Kosdesign Holding AS | Wholesale & retail | 2020 |
| Kreativiteten AS | Wholesale & retail | 2019 |
| Ksi Investment AS | Real estate | 2023 |
| Kulen AS | Real estate | 2024 |
| Kvalitetbygg AS | Construction | 2025 |
| Kvistlaus AS | Administrative & support | 2026 |
| Kyrkjegata 19 AS | Real estate | 2025 |
| La-Te Eigedom Da | Real estate | 2011 |
| LAB7 AS | Information & communication | 2009 |
| Leinad AS | | 2023 |
| Lema Invest AS | | 2024 |
| Lerstadveien 506 AS | Real estate | 1972 |
| Lerstadveien 539 AS | Real estate | 1998 |
| Lerstadveien 545 AS | Real estate | 2005 |
| Lille Jamas AS | Hospitality | 2022 |
| Lilles Dame - Og Herrefrisør AS | Other services | 2014 |
| Link AS | Health & social care | 1998 |
| Link Eiendom AS | Health & social care | 2001 |
| Link Holding AS | Health & social care | 2001 |
| LK Rud Holding AS | | 2026 |
| Lokal Til Global AS | Information & communication | 2012 |
| Luggen Frisør Da | Other services | 1997 |
| Lux Audio AS | Wholesale & retail | 2022 |
| Løset Grunneigarlag SA | Real estate | 2020 |
| Mae Kanya's Thai Food AS | Hospitality | 2017 |
| Mahesi Holding AS | Wholesale & retail | 2023 |
| Maluns AS | Hospitality | 2017 |
| Marber Invest AS | | 2025 |
| Marco Estate AS | Real estate | 2013 |
| Mare Safety AS | Wholesale & retail | 2014 |
| Mare Safety Holding AS | Professional & scientific | 2012 |
| Marine Solutions Norway AS | Professional & scientific | 2023 |
| Mario AS | Real estate | 2019 |
| Maris Fiducia Norway AS | Transport & logistics | 2023 |
| Maritime Corporate AS | Professional & scientific | 2014 |
| Maritime Group International AS | Wholesale & retail | 1998 |
| Maritime Operation AS | Transport & logistics | 2025 |
| Marjul AS | Real estate | 2009 |
| Marmar Invest AS | | 2024 |
| Martin AS | | 1998 |
| Martinus Ulstein AS | Financial services | 2015 |
| Mathias & Peter Construction Da | Construction | 1999 |
| Me, Myself & I AS | Information & communication | 2022 |
| Medisinsk Diagnostikk AS | Health & social care | 2014 |
| Memori AS | Professional & scientific | 2014 |
| Meson AS | Wholesale & retail | 2002 |
| Miljøtun AS | Real estate | 2002 |
| Milstead Ltd | | 2008 |
| Mimar AS | Real estate | 1998 |
| Mimar Borgstein AS | | 2021 |
| Mini Market AS | Wholesale & retail | 2017 |
| Mo Utvikling AS | | 2026 |
| Mogul Invest AS | | 2015 |
| Mogul Kapital AS | Financial services | 2015 |
| Mona Kleven AS | Manufacturing | 2019 |
| Montasjesupport AS | Construction | 2013 |
| Mork Agentur AS | Wholesale & retail | 2008 |
| Mork Marine & Industriservice AS | Other services | 2026 |
| Motorhuset Ans | Other services | 1996 |
| Mpo Id AS | Manufacturing | 2005 |
| Mr.K Holding AS | | 2024 |
| MTR Holding AS | | 2021 |
| Møre Helse AS | Health & social care | 2020 |
| Møre Media AS | Professional & scientific | 2013 |
| Møre Transport AS | Transport & logistics | 2025 |
| Napoli-Pizzeria AS | Hospitality | 2015 |
| Natural Silence AS | Wholesale & retail | 2019 |
| Navigera AS | | 2020 |
| Nesevegen Eigedom AS | Real estate | 2013 |
| Nesset Eiendom AS | Construction | 2005 |
| Nesset Og Eidem AS | Real estate | 2011 |
| Noa AS | Information & communication | 2018 |