| LAMBDA2 AS | Information & communication | 2021 |
| Lambersøy AS | | 2022 |
| Lampefeber AS | Arts & recreation | 2021 |
| Lampeknusekontoret Da | Arts & recreation | 2023 |
| Landa Handel AS | Wholesale & retail | 2024 |
| Landrock AS | Financial services | 2015 |
| Landsbysmak AS | Hospitality | 2025 |
| Lang Lugg AS | Other services | 2020 |
| Lange Kvelder AS | Real estate | 2008 |
| Langeland Eiendom AS | | 2023 |
| Langeland Holding AS | Professional & scientific | 2005 |
| Langesi AS | | 2023 |
| Langfeldt Gruppen AS | Real estate | 2024 |
| Langflåtveien 29 AS | Real estate | 2013 |
| Langflåtveien 31-33 AS | Real estate | 2020 |
| Langflåtveien 5 AS | Real estate | 2007 |
| Langflåtveien 7 AS | Real estate | 2005 |
| Langgata 15 AS | Real estate | 2025 |
| Langgata 6 AS | Real estate | 2025 |
| Langgata 64 AS | Real estate | 2020 |
| Langgata Eiendom AS | Real estate | 2021 |
| Langgata Invest AS | Real estate | 2020 |
| Langgaten 1 B AS | Real estate | 1973 |
| Langgaten 64 AS | Real estate | 2004 |
| Langgård AS | Mining & quarrying | 2005 |
| Langholm Engen Holding AS | | 2025 |
| Langmyra 1 AS | Real estate | 2000 |
| Langseth Capital AS | | 2022 |
| Langskip AS | Professional & scientific | 2026 |
| Lanne Elektriske Verksted AS | Manufacturing | 1978 |
| Larikka AS | Wholesale & retail | 2005 |
| Larmar Invest AS | Real estate | 2025 |
| Lars Helle AS | Arts & recreation | 2020 |
| Lars Selsas Holding AS | Financial services | 2016 |
| Lars Tornøe AS | Professional & scientific | 2014 |
| Lars Vaages Gate 21 AS | Real estate | 2025 |
| Lars-Lennart Nielsen AS | Health & social care | 2012 |
| Larsbet AS | | 2020 |
| Larsen Exploration AS | Professional & scientific | 2012 |
| Larsen Investering AS | Financial services | 2012 |
| Larstad AS | | 2005 |
| Laserdrome Ans | Wholesale & retail | 1993 |
| Lashes by Kasja Stavanger AS | Other services | 2020 |
| Lassa Living AS | Real estate | 2021 |
| Lassehen AS | | 2026 |
| Lassi Invest AS | Real estate | 2005 |
| Last Chance Da | Wholesale & retail | 1998 |
| Last Friday AS | Information & communication | 2011 |
| Last Friday Invest AS | Information & communication | 2018 |
| Lastad Kraft AS | Energy | 2025 |
| Latv AS | Real estate | 2020 |
| Laubuk Invest AS | | 2023 |
| Laugmannsgaten 4 Da | Real estate | 2006 |
| Laugmannsgaten 6 Da | Real estate | 2005 |
| Lauvika Va SA | Water & waste | 2019 |
| Lauvvik AS | Real estate | 2026 |
| Lauvvik Holding AS | | 2026 |
| Lavmelt AS | Financial services | 2015 |
| Lavterskel.Run AS | Professional & scientific | 2025 |
| Lazar Holding AS | Hospitality | 2021 |
| Lazy Llama AS | Real estate | 2021 |
| LBL No SVG AS | Hospitality | 2018 |
| LCK Holding AS | Financial services | 2005 |
| Le Invest AS | Real estate | 2022 |
| Lea-Invest AS | | 2024 |
| Leadership Symphony AS | Professional & scientific | 2021 |
| Leadify AS | Professional & scientific | 2016 |
| Leading Advice AS | Professional & scientific | 2020 |
| Leading Web Solutions AS | Information & communication | 2011 |
| Lean Group AS | Professional & scientific | 2021 |
| LEAN2LEAN AS | Professional & scientific | 2021 |
| Leap Eiendom AS | Real estate | 2022 |
| Leap Ink & Piercing AS | Other services | 2017 |
| Learnbuddy Invest AS | Real estate | 2007 |
| Learninghotels AS | Hospitality | 2017 |
| Led Design AS | Manufacturing | 2014 |
| Ledaal Arkitektur AS | Professional & scientific | 2024 |
| Ledaal Park Energi AS | Energy | 2018 |
| Ledaal Teppeveveri Ans | Manufacturing | 2008 |
| Lefdal Well Consultants AS | Mining & quarrying | 2004 |
| Legacy Advokatfirma AS | Professional & scientific | 2024 |
| Legacy Ventures AS | | 2026 |
| Lege Kåre Reiten AS | Health & social care | 2018 |
| Lege Martine Skudem AS | Health & social care | 2018 |
| Lege Trond Høibø AS | Health & social care | 2022 |
| Legekontorene Skagen AS | Health & social care | 2022 |
| Legekontorene Tastasenter Da | Health & social care | 2012 |
| Legesenteret Mariero AS | Health & social care | 2015 |
| Legu Invest AS | Real estate | 2007 |
| Leibo AS | | 2025 |
| Leibo Treasury AS | | 2026 |
| Leibo Yield AS | Real estate | 2021 |
| Leidang Industripartner AS | Professional & scientific | 2020 |
| Leie Til Eie AS | Real estate | 2021 |
| Leif Hansen Prosjekt AS | | 2002 |
| Leikvoll AS | Transport & logistics | 1984 |
| Leily AS | Real estate | 2025 |
| Leirvoll Holding AS | | 2025 |
| Leitao AS | Health & social care | 2019 |
| Leitao Invest AS | | 2019 |