| Lyse Agon AS | Construction | 2021 |
| Lyse AS | Information & communication | 1998 |
| Lyse Bio AS | Energy | 2023 |
| Lyse Dialog AS | Information & communication | 2023 |
| Lyse Eiendom Mariero AS | Real estate | 2016 |
| Lyse Eiendom Tronsholen AS | Real estate | 2023 |
| Lyse Eiendom Ullandhaug AS | | 2019 |
| Lyse Elkon AS | Construction | 2021 |
| Lyse Energi AS | Energy | 1998 |
| Lyse Energiservice AS | Professional & scientific | 2023 |
| Lyse Fiber AS | Information & communication | 2009 |
| Lyse Fiberinvest AS | Information & communication | 2009 |
| Lyse Kraft AS | Information & communication | 2011 |
| Lyse Kraft Da | Energy | 2020 |
| Lyse Lading AS | Energy | 2022 |
| Lyse Lux AS | Construction | 2019 |
| Lyse Marked AS | Information & communication | 1998 |
| Lyse Neo AS | Energy | 2000 |
| Lyse Produksjon AS | Energy | 1998 |
| Lyse Strøm AS | Energy | 2022 |
| Lyse Tele AS | Information & communication | 2013 |
| Lyse Transport AS | Transport & logistics | 2000 |
| Lyse Vekst AS | Information & communication | 2021 |
| Lysebotn Discgolf AS | Arts & recreation | 2021 |
| Lysefjorden Adventure AS | Administrative & support | 2016 |
| Lysefjorden Skjell Og Kråkeboller AS | Agriculture & fishing | 2013 |
| Lyseggen Asset AS | Real estate | 2022 |
| LYSSTART07 AS | | 2023 |
| LYSSTART17 AS | | 2024 |
| LYSSTART18 AS | | 2024 |
| LYSSTART20 AS | | 2018 |
| LYSSTART21 AS | Information & communication | 2025 |
| LYSSTART22 AS | | 2025 |
| LYSSTART23 AS | | 2025 |
| LYSSTART24 AS | | 2025 |
| Lyton Invest AS | | 2025 |
| Leirvik Sveis A/S | Real estate | 1972 |
| Låb Holding AS | | 2020 |
| Læks Capital AS | | 2019 |
| Lærdal Holding AS | Real estate | 2010 |
| Léva Urban Design AS | Professional & scientific | 2009 |
| Lø Bygg AS | Real estate | 2026 |
| Løge Consulting AS | Information & communication | 2018 |
| Løkkehund AS | Other services | 2025 |
| Løkkeveien 103 AS | Real estate | 2005 |
| Løkkeveien 14 AS | Real estate | 2004 |
| Løkkeveien 44 Da | Real estate | 2007 |
| Løkkeveien 56 AS | Real estate | 1987 |
| Løkkeveien 87 AS | Real estate | 2001 |
| Løkkeveien 9 AS | Real estate | 2023 |
| Løkkeveien 97-99 AS | Real estate | 2016 |
| Løland Holding AS | Financial services | 2005 |
| Løvdahlsgate 20 AS | Real estate | 2020 |
| Løvdahlsparken AS | Real estate | 2024 |
| Løvetann Invest AS | | 2015 |
| Løvik Holding AS | | 2023 |
| Løå Invest AS | Administrative & support | 2016 |
| M & I HH AS | Other services | 2023 |
| M & K Kantine Nuf | Hospitality | 2018 |
| M Amdal Holding AS | Real estate | 2005 |
| M Atelier AS | Wholesale & retail | 2024 |
| M C Albretsen AS | Professional & scientific | 2021 |
| M Og T Holding AS | Real estate | 2012 |
| M Skulevold AS | Real estate | 1963 |
| M&L Invest AS | | 2023 |
| M-F Holding AS | Hospitality | 2005 |
| M. Holding AS | Professional & scientific | 2018 |
| M. R. Simensen AS | Wholesale & retail | 2006 |
| M.A.G Investments AS | Hospitality | 2024 |
| M.B. Holding AS | | 2021 |
| M.I.M.I AS | Wholesale & retail | 2022 |
| M.Konsult AS | Professional & scientific | 2018 |
| M.P. Transport AS | Transport & logistics | 2025 |
| M.S. Lothe AS | Professional & scientific | 2016 |
| M12 Stavanger AS | Hospitality | 2019 |
| M1KK Invest AS | | 2025 |
| M2 Tomteutvikling AS | Real estate | 2013 |
| M2COM AS | Professional & scientific | 2024 |
| M3 Kraft AS | | 2016 |
| Ma Ma AS | Other services | 2020 |
| Ma-Ve AS | Financial services | 2011 |
| Maaago Ventures AS | | 2022 |
| Maabe Invest AS | | 2017 |
| Mabi Mobility AS | Administrative & support | 2024 |
| Mablisfest AS | Arts & recreation | 2015 |
| Mabor AS | Financial services | 2005 |
| Mac Anthony Dystrybusjon AS | Transport & logistics | 2021 |
| Macartney A/S | Mining & quarrying | 1999 |
| Macartney Eiendomsselskap AS | Wholesale & retail | 2010 |
| Macartney Norge AS | Wholesale & retail | 1994 |
| Macivi Design AS | Manufacturing | 1991 |
| Macivi Media AS | Information & communication | 2023 |
| Mad Investing AS | | 2022 |
| Madan Energy Consultants AS | Professional & scientific | 2022 |
| Made With Hart AS | Wholesale & retail | 2017 |
| Made With Hart Holding AS | Wholesale & retail | 2009 |
| Madla Bilpleie & Bilvask AS | Other services | 2015 |
| Madla Byutvikling AS | Real estate | 2007 |
| Madla Eiendom AS | Real estate | 1999 |
| Madla Pizza AS | Hospitality | 2004 |