| Lexmohr AS | Professional & scientific | 2025 |
| Lexolve AS | Information & communication | 2017 |
| Lexor AS | Professional & scientific | 2019 |
| Lexoslo Advokatfirma AS | Professional & scientific | 2024 |
| Lexow Holding AS | Financial services | 1997 |
| Lexplore AS | Information & communication | 2012 |
| Lexx Advokat AS | Professional & scientific | 2025 |
| Leyla Velvære Og Thai Massasje Salong Da | Health & social care | 2015 |
| Leyna AS | Professional & scientific | 2023 |
| LF Holding AS | | 2020 |
| Lfcm AS | | 2017 |
| Lfe Holding AS | | 2026 |
| LFG AS | | 2022 |
| LFG FTL AS | | 2025 |
| LFG Holding AS | | 2023 |
| LFM Eiendom AS | Real estate | 2021 |
| LFM Eiendomsinvest AS | | 2022 |
| LFM Holding AS | Real estate | 2021 |
| Lfmb AS | | 2024 |
| Lfo Maternelle AS | Education | 2023 |
| LFS Holding AS | Education | 2013 |
| LFS Invest AS | | 2025 |
| LG & Co AS | | 2024 |
| LG & SP Rådgivning AS | Financial services | 2022 |
| LG 5 Sub-Holding AS | Real estate | 2017 |
| LG Bidco AS | Real estate | 2024 |
| LG Capital AS | | 2021 |
| LG Eiendom Aalesund AS | Real estate | 2024 |
| LG Electronics Nordic AB | Construction | 2008 |
| LG Finans AS | Real estate | 2006 |
| LG Goldkey Holding Limited | | 2021 |
| LG Holding AS | Professional & scientific | 2005 |
| LG Invest Holding AS | Real estate | 2024 |
| LG Nordic AS | Real estate | 2022 |
| Lg-A AS | Professional & scientific | 2025 |
| LG1 Eiendomsinvest AS | Real estate | 2021 |
| LG5 Consulting AS | Professional & scientific | 2019 |
| LG5 Holding AS | Real estate | 2020 |
| LG5 Invest AS | Financial services | 2020 |
| LG9 Drift Og Eiendom AS | Real estate | 1954 |
| LGJ Invest AS | Financial services | 2008 |
| LGM Invest AS | | 2025 |
| LGR Consulting AS | Professional & scientific | 2004 |
| Lgret AS | Real estate | 2023 |
| Lgtm AS | | 2026 |
| LH Capital AS | Transport & logistics | 2014 |
| LH Graveteknikk AS | Construction | 2024 |
| LH IT AS | Information & communication | 2015 |
| Lh-Tækni Ehf | Information & communication | 2013 |
| Lha Holding AS | | 2022 |
| Lha Norway AS | Wholesale & retail | 2022 |
| Lhe Eiendom AS | Real estate | 2024 |
| LHF Holding AS | Professional & scientific | 2013 |
| LHG Holding AS | | 2023 |
| Lhi Solarwind Hydro Grønlielva 2641 AS | Energy | 2007 |
| Lhi Solarwind Hydro Kulu 2642 AS | Energy | 2007 |
| Lhi Solarwind Hydro Ryddøla 2643 AS | Energy | 2007 |
| Lhi Solarwind Hydro Tikraft Holding 2639 AS | Energy | 2006 |
| Lhi Solarwind Hydro Vikaåne 2644 AS | Energy | 2007 |
| Lhi Solarwind Hydro Voldsetelva 2645 AS | Energy | 2007 |
| Lhmb Holding AS | | 2023 |
| Lhmw AS | Hospitality | 2023 |
| Lhotse Invest AS | Real estate | 2005 |
| LHS Invest AS | | 2026 |
| Lhstg AS | | 2024 |
| LHV Holding AS | Information & communication | 2025 |
| Li Agency AS | Wholesale & retail | 2023 |
| Li Av Typen Bjørk AS | | 2025 |
| Li Wu AS | | 2026 |
| Li&Fjell AS | Wholesale & retail | 2024 |
| Li-Tech AS | Information & communication | 2021 |
| Lia Eigendom AS | Real estate | 2017 |
| Lia Finans AS | Financial services | 2005 |
| Lia Trening AS | Arts & recreation | 2015 |
| Lia-Intl AS | Wholesale & retail | 2025 |
| Liahagen Holding AS | | 2026 |
| Liamyrane 18-20 AS | | 2022 |
| Lian & Fjell Holding 2 AS | | 2026 |
| Lian & Fjell Holding AS | | 2025 |
| Lian & Fjell Oslo AS | Health & social care | 2025 |
| Lian Heis AS | Construction | 2018 |
| Lian Holding AS | Real estate | 2005 |
| Liana Laser AS | Other services | 2024 |
| Lianis Consulting AS | Education | 2011 |
| Liastredet Holding AS | | 2023 |
| Liavaag Capital AS | | 2024 |
| Libakkløkka AS | Real estate | 2022 |
| Libalu AS | Professional & scientific | 2023 |
| Liban Elegant Frisør AS | Other services | 2013 |
| Liban Fønikern AS | Hospitality | 2016 |
| Libekk Holding AS | | 2020 |
| Libelula Studio AS | Wholesale & retail | 2018 |
| Liber Invest AS | Wholesale & retail | 2021 |
| Libera AS | Professional & scientific | 2001 |
| Liberation AS | | 2025 |
| Liberge Invest AS | | 2019 |
| Liberi AS | Real estate | 2011 |
| Liberis Norway AS | | 2024 |
| Libero Capital AS | | 2026 |
| Libert AS | Financial services | 2006 |