| Lan Plus AS | Real estate | 2019 |
| Lana AS | Arts & recreation | 2012 |
| Lanab Group AB Nuf | Wholesale & retail | 2005 |
| Lancesoft Norway AS | Information & communication | 2021 |
| Lancing Capital AS | Financial services | 2022 |
| Lancing Hedge Fund AS | Financial services | 2025 |
| Lancke AS | | 2026 |
| Land Transport AS | Transport & logistics | 2025 |
| Landa Ecommerce AS | Professional & scientific | 2019 |
| Landa Invest AS | | 2022 |
| Landaas Drift AS | Wholesale & retail | 2023 |
| Landaasen Eiendom AS | Real estate | 1996 |
| Landberg Invest AS | | 2026 |
| Landbrukets Dataflyt SA | Information & communication | 1980 |
| Landbrukets Hus Oslo AS | Real estate | 2013 |
| Landbrukets Klimaselskap SA | Professional & scientific | 2017 |
| Landbrukskvartalet Utvikling AS | Real estate | 2015 |
| Lande Eiendom AS | Real estate | 2015 |
| Landekil AS | Construction | 2005 |
| Landerudsenter Bolig AS | Real estate | 2007 |
| Landes Helsetjenester AS | Education | 2023 |
| Landfalløya 109 AS | Real estate | 2010 |
| Landfalløya 26 AS | Real estate | 2023 |
| Landfalløya 7 Holding AS | Real estate | 2019 |
| Landgangen AS | Real estate | 1986 |
| Landgraff Holding AS | Professional & scientific | 2005 |
| Landinfra Energy Norway AS | Energy | 2023 |
| Landing AS | Arts & recreation | 2022 |
| Landinvest AS | Financial services | 2017 |
| Landkreditt Bank AS | Financial services | 1998 |
| Landkreditt Boligkreditt AS | Financial services | 2010 |
| Landkreditt Eiendom AS | Real estate | 2013 |
| Landkreditt Forsikring AS | Financial services | 2001 |
| Landkreditt Forvaltning AS | Financial services | 1999 |
| Landkreditt SA | Financial services | 1915 |
| Landmark Advisory AS | Professional & scientific | 2025 |
| Landmark Blue AS | Information & communication | 2013 |
| Landmark Capital AS | | 2026 |
| Landmark Invest AS | Real estate | 2022 |
| Landsbyferie AS | Hospitality | 2014 |
| Landsbygruppen AS | Real estate | 2023 |
| Landsdowne AS | Financial services | 2020 |
| Landsem AS | Education | 2019 |
| Landsem Holding AS | | 2021 |
| Landskap+ AS | Professional & scientific | 2018 |
| Landskaperiet AS | Professional & scientific | 2025 |
| Landskaperiet Holding AS | | 2025 |
| Landskapsmesteren AS | Administrative & support | 2020 |
| Landsmarka Holding AS | | 2025 |
| Landsskytterstevnet AS | Other services | 2015 |
| Landstad Invest AS | Financial services | 2017 |
| Landstads Gate 25 AS | Real estate | 2008 |
| Landstads Gate 27 AS | Arts & recreation | 2017 |
| Landøyveien 2 Invest AS | Real estate | 2013 |
| Lang & Stor AS | Real estate | 2014 |
| Lang Holding AS | Information & communication | 2018 |
| Lang Lunsj AS | | 2017 |
| Langaas Eiendom AS | Real estate | 2021 |
| Langaas Geotech Software Consulting AS | Information & communication | 2015 |
| Langarinden Eiendom AS | Real estate | 2008 |
| Langarinden Utvikling AS | Real estate | 2020 |
| Langbakken 16 AS | Real estate | 2018 |
| Langbakken AS | Real estate | 2020 |
| Langbakken Holding AS | Real estate | 2017 |
| Langbo AS | Professional & scientific | 2020 |
| Langbrecke AS | Wholesale & retail | 1981 |
| Langbryggen 15 AS | Real estate | 2023 |
| Langbråten Eiendom AS | Real estate | 1988 |
| Langbølgen 39 Næring AS | Real estate | 2016 |
| Langdent AS | Information & communication | 2025 |
| Lange Holdings AS | | 2021 |
| Lange Industries AS | | 2019 |
| Lange Investeringer AS | Real estate | 2008 |
| Lange Løp AS | | 2019 |
| Lange Riggpart AS | Mining & quarrying | 1997 |
| Langeberg AS | Real estate | 2019 |
| Langebru AS | Financial services | 2005 |
| Langebæk Consulting AS | Professional & scientific | 2021 |
| Langemann Holding AS | | 2025 |
| Langer Holding AS | Financial services | 2020 |
| Langeraks Consulting AS | Information & communication | 2024 |
| Langerud Eiendomsservice AS | Administrative & support | 2025 |
| Langerud Haugen Garasjelag SA | Transport & logistics | 1984 |
| Langes Gate 1 Bolig AS | Real estate | 2025 |
| Langes Gate 1 Næring AS | Real estate | 2025 |
| Langes Gate 1B AS | Real estate | 2025 |
| Langestrand AS | Manufacturing | 2005 |
| Langevatn Invest AS | | 2022 |
| Langeveien 1 AS | Real estate | 1991 |
| Langfjordkraft AS | Energy | 2011 |
| Langfonn AS | Real estate | 2003 |
| Langgata 7 AS | Real estate | 2004 |
| Langgata 87 AS | Real estate | 2022 |
| Langgaten 14 AS | Real estate | 2015 |
| Langgaten 21 AS | Real estate | 2015 |
| Langgaten 21A AS | Real estate | 2015 |
| Langholm Consulting Ltd Nuf | Professional & scientific | 2008 |
| Langholm Design AS | Professional & scientific | 2004 |
| Langhus Boligutvikling AS | Real estate | 2017 |
| Langhus Eiendom AS | Real estate | 2008 |