| Laasken Elconsult AS | Professional & scientific | 2021 |
| Lachmannsvei Eiendom AS | Real estate | 2002 |
| Lachmannsvei Eiendom II AS | | 2005 |
| Landlord Eiendom AS | Real estate | 2004 |
| Langbakken Eiendom AS | Real estate | 2003 |
| Last Link AS | Wholesale & retail | 2026 |
| LBL Holding AS | Administrative & support | 2022 |
| Lcan Holding AS | Real estate | 2005 |
| Le Creuset Scandinavia Nuf | Wholesale & retail | 2003 |
| Le Holding 1 AS | Real estate | 2020 |
| Le Utvikling AS | Real estate | 2021 |
| Legechat AS | Health & social care | 2025 |
| Legene Garshol Og Bjørdal AS | Health & social care | 2009 |
| Lekang Filter AS | Wholesale & retail | 1970 |
| Lekehuset Vestby AS | Wholesale & retail | 2021 |
| Leman AS | Transport & logistics | 2001 |
| Lesteberg Landbruk Da | Agriculture & fishing | 2019 |
| Lettstillas Grøstad AS | Administrative & support | 2016 |
| Lev Livet AS | Administrative & support | 2011 |
| Levanger Traktor Og Eiendom AS | Real estate | 2015 |
| Linstin Invest AS | | 2019 |
| Logic Holding AS | | 2022 |
| Logistikk Compagniet AS | Real estate | 2005 |
| Logotrykk AS | Manufacturing | 2002 |
| Lokalbrygg AS | Wholesale & retail | 2020 |
| Lukas Moser AS | Health & social care | 2019 |
| Lur Holding AS | Financial services | 2017 |
| Luxiou Aesthetics AS | Other services | 2023 |
| Læ Holding AS | | 2026 |
| M Security AS | Administrative & support | 2025 |
| Malermester Elvegård & Nilssen AS | Construction | 2020 |
| MD Invest AS | | 2023 |
| Meaning Green AS | Real estate | 2015 |
| Mediasenteret AS | Information & communication | 1993 |
| Megalink AS | Manufacturing | 1991 |
| Meir Distillery AS | Wholesale & retail | 2019 |
| Melandsø AS | Health & social care | 2022 |
| Mercurium AS | Construction | 1998 |
| Messeforum AS | Administrative & support | 2025 |
| Mester a. Larsen AS | Education | 2023 |
| Mesterinteriør AS | Wholesale & retail | 2021 |
| Midgard Eiendom AS | Real estate | 2010 |
| Midttunveien 7 B AS | Real estate | 2004 |
| Mime Invest AS | Wholesale & retail | 2005 |
| MKS Holding AS | Construction | 2007 |
| MM Byggservice AS | Construction | 2020 |
| Modem AS | | 2025 |
| Moen Engros AS | Wholesale & retail | 2007 |
| Moen Engros Eiendom AS | Real estate | 2016 |
| Moltzau Regnskap AS | Professional & scientific | 2012 |
| Moltzau Revisjon AS | Professional & scientific | 2002 |
| Moltzau Øko Consult AS | Professional & scientific | 2005 |
| Morticii AS | Information & communication | 2021 |
| Morx AS | Education | 2020 |
| Mosoa AS | Wholesale & retail | 2020 |
| Moss Og Våler Fjernvarme AS | Real estate | 2015 |
| Mozaik AS | Administrative & support | 2026 |
| MR Rallycrossdottir Sport & Invest AS | | 2023 |
| MT Byggtjeneste AS | Construction | 2024 |
| MTM Norge AS | Construction | 2017 |
| Muehlhan Cyprus Ltd Nuf | Construction | 2019 |
| Munch Holding AS | Construction | 2005 |
| Muno AS | Financial services | 2005 |
| Måltrost Holding AS | Wholesale & retail | 1966 |
| Møblia AS | Wholesale & retail | 2013 |
| Mølla Pizza Og Grill AS | Hospitality | 2026 |
| Mølleveien 3 AS | Real estate | 1992 |
| N - 2 Eiendom AS | Real estate | 2007 |
| Natalia Service AS | Administrative & support | 2019 |
| NBS Logistics AS | Transport & logistics | 2021 |
| NBS Property AS | Real estate | 2022 |
| NBS Tech AS | Information & communication | 2022 |
| NBS3 AS | Wholesale & retail | 2022 |
| Ndi Norge AS | Wholesale & retail | 1988 |
| Nedre Linnestad Gård Da | Real estate | 2025 |
| Nes Bygg Og Prosjektering AS | Professional & scientific | 2021 |
| Nes Capital AS | Real estate | 2011 |
| Nesveien 44 AS | Real estate | 2024 |
| Newold Company AS | Wholesale & retail | 2018 |
| NK Flis AS | Construction | 2013 |
| NLV1 AS | Real estate | 2022 |
| Nor-Mak Frakt AS | Transport & logistics | 2024 |
| Noracon AS | Manufacturing | 2012 |
| Nordic Beverage Solutions AS | Wholesale & retail | 2018 |
| Nordic Consortio AS | Transport & logistics | 2007 |
| Nordic Furniture & Decor AS | Wholesale & retail | 1995 |
| Nordic NPH Group AS | | 2026 |
| Nordiq Auto AS | Wholesale & retail | 2025 |
| Nordiq Truck AS | Wholesale & retail | 2015 |
| Nordix Digital AS | Professional & scientific | 2026 |
| Nordør AS | Wholesale & retail | 2023 |
| Norgoat AS | Wholesale & retail | 2026 |
| Norlys Engros AS | Wholesale & retail | 2024 |
| Normann Copenhagen Aps | Manufacturing | 2013 |
| Norsk Kapitalinvest AS | Financial services | 2016 |
| Norsk Skolefoto AS | Professional & scientific | 2011 |
| Norsk Storkjøkken AS | Professional & scientific | 1997 |
| Northshield Group AS | | 2025 |
| Norx AS | Real estate | 2011 |
| Novavital AS | Other services | 2024 |