| Kåvi AS | | 2020 |
| Kø Investeringsselskap AS | | 2021 |
| L Estetisk Klinikk AS | Health & social care | 2025 |
| L S Bygg AS | Construction | 2025 |
| L S Invest AS | | 2025 |
| L.A.B. Holding AS | Real estate | 2015 |
| L.K. Haaland AS | Wholesale & retail | 1996 |
| L.K. Haaland Holding AS | Wholesale & retail | 2005 |
| L.Mæle Invest AS | | 2024 |
| La Punta 27 AS | Real estate | 2014 |
| Lager 1 AS | Real estate | 2021 |
| Lager 1000 AS | Real estate | 2024 |
| Lagre Enkelt AS | Administrative & support | 2017 |
| Laland Eiendom AS | Real estate | 1987 |
| Laland Holding AS | Wholesale & retail | 2017 |
| Lambda-Invest AS | | 2025 |
| Lan- X AS | Information & communication | 1998 |
| Landa Investering AS | Wholesale & retail | 2021 |
| Landex AS | Information & communication | 2025 |
| Lanesra 14 AS | Real estate | 2004 |
| Lanesra 34 AS | Real estate | 2016 |
| LANG87 AS | Real estate | 2023 |
| Lange-Byggservice AS | Construction | 2025 |
| Langg 47 AS | Real estate | 1991 |
| Langgata 14 - 18 AS | Real estate | 2005 |
| Langgata 28 AS | Real estate | 2016 |
| Langgata 96 AS | Real estate | 2021 |
| Langgata 96B AS | Real estate | 2021 |
| Langgata Hotel Holding AS | Real estate | 2025 |
| Langgaten 1 a AS | Real estate | 2008 |
| Langgaten 10 AS | Real estate | 2005 |
| Langgaten 17 AS | Real estate | 2000 |
| Langgaten 38 AS | Real estate | 2024 |
| Langgaten 70 AS | Real estate | 1974 |
| Langgaten 8 AS | Real estate | 1985 |
| Langgaten 9-11 AS | Real estate | 1998 |
| Langgaten 94 AS | Real estate | 2002 |
| Langgt. 30 AS | Real estate | 2012 |
| Langgt. 41 AS | Real estate | 2006 |
| Langgt. 51 Invest AS | Real estate | 2006 |
| Langgt. 59 AS | Real estate | 2006 |
| Langgt. 91 AS | Real estate | 2018 |
| Lapageria AS | | 2022 |
| Lapto AS | Wholesale & retail | 2010 |
| Lars Berland Eiendom AS | Real estate | 2022 |
| Lars Berland Holding AS | Manufacturing | 2007 |
| Lars Nordbø Holding AS | Financial services | 2013 |
| Larsamyra 16 AS | Real estate | 2009 |
| Larsamyrå 10 AS | Transport & logistics | 2008 |
| Larsamyrå 2 AS | Real estate | 2008 |
| Larsamyrå Sandnes AS | Real estate | 2017 |
| Larsen Events Da | Administrative & support | 2017 |
| Las Vegas Pub AS | Hospitality | 2025 |
| Lashes by Marta AS | Other services | 2021 |
| Lasolinv AS | | 2023 |
| Lasse Bjørnsen AS | | 2021 |
| Lastebilsentralen SA | Transport & logistics | 2014 |
| Laugmannsgata 8 Da | Real estate | 2005 |
| Lauvik Marina Ba | Arts & recreation | 1977 |
| Lavest Holding AS | | 2025 |
| Law Invest AS | Financial services | 2016 |
| Layer One AS | Information & communication | 2018 |
| LBF Transport SA | Transport & logistics | 1986 |
| LBS Holding AS | Real estate | 2017 |
| LC Consulting AS | Professional & scientific | 2020 |
| LC Pulverlakk AS | Manufacturing | 2026 |
| LCC Norge AS | Professional & scientific | 2026 |
| LD Kapital AS | Real estate | 2026 |
| Le Trading AS | Wholesale & retail | 2020 |
| Le' Phirme Limited Nuf | | 2026 |
| Lea Trading AS | Real estate | 2010 |
| Leak Detector AS | Water & waste | 2019 |
| Lean Holding AS | | 2020 |
| Leanback AS | Information & communication | 2019 |
| Legalease AS | Professional & scientific | 2026 |
| Lege Hosea Binyam AS | Health & social care | 2015 |
| Lei Enkelt AS | Administrative & support | 2021 |
| Leif Kielsen AS | Professional & scientific | 2014 |
| Leif Kielsen Holding AS | Professional & scientific | 1988 |
| Leif Kielsen Regnskapskontor AS | Professional & scientific | 2012 |
| Leilighetspartneren AS | Real estate | 2023 |
| Leirfivel AS | | 2018 |
| Leithe Investments AS | | 2023 |
| Leiv Kyllingstad AS | | 1993 |
| Leiva Holding AS | Wholesale & retail | 2012 |
| Lemmus Lemmus AS | | 2022 |
| Lende Holding AS | | 2021 |
| Lene Byberg AS | Real estate | 2010 |
| Leo Networks Nordic AS | Wholesale & retail | 2023 |
| Leoh Invest AS | Financial services | 2011 |
| Lervigkvartalet Butikkeiendom AS | Real estate | 2021 |
| LES2 AS | Education | 2026 |
| Letech AS | Professional & scientific | 2026 |
| Leval AS | Professional & scientific | 2025 |
| LH Mekaniske AS | Manufacturing | 2023 |
| LHS Eiendom AS | Real estate | 2007 |
| Libmed AS | Health & social care | 2005 |
| Libor AS | Professional & scientific | 2005 |
| Lico's Hårdrøm AS | Other services | 2023 |
| Lie & Gustafsson AS | Construction | 2005 |