| Lykketrollet Familiebarnehage Avdeling Anna Rogstads Vei AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Bentsegata AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Bogerudveien 25 AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Bogerudveien 27 AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Dalbakkveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Eltonveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Frydens Gate AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Kildeveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Krokliveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Stordamveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Sverdrupsgate AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Ulsrudveien AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Vogts Gate 32A AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Vogts Gate 32B AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Vogts Gate 32C AS | Education | 2023 |
| Lykketrollet Familiebarnehage Avdeling Åkerøveien AS | Education | 2023 |
| Lykki Sweets AS | Wholesale & retail | 2021 |
| Lykkjebo AS | | 2020 |
| Lyko AS | Wholesale & retail | 2010 |
| Lylela AS | Real estate | 2023 |
| Lyma Kemiteknik Norge Nuf | Wholesale & retail | 2010 |
| Lyn 1896 AS | | 2021 |
| Lyn Bane AS | Professional & scientific | 2024 |
| Lyn Bygg AS | Construction | 2025 |
| Lyn Marked AS | Arts & recreation | 2023 |
| Lyn Parkering AS | Real estate | 2010 |
| Lynes Technologies Norway AS | Information & communication | 2021 |
| Lynet AS | Financial services | 2023 |
| Lynet Invest AS | | 2025 |
| Lynet Shipmanagement Co | | 2004 |
| Lyng AI AS | | 2025 |
| Lyng Andersen Ventures AS | Information & communication | 2023 |
| Lyng Film AS | Information & communication | 2023 |
| Lyng-Olsen Consult AS | Professional & scientific | 2015 |
| Lyngbakken Eiendom AS | Real estate | 2006 |
| Lyngbakkvegen 1 AS | Real estate | 2012 |
| Lyngby Consulting AS | Professional & scientific | 2025 |
| Lyngbø Holding AS | Financial services | 2018 |
| Lyngcap AS | | 2024 |
| Lyngkampen AS | | 2022 |
| Lyngli AS | | 2026 |
| Lyngmo and Co. AS | Wholesale & retail | 2023 |
| Lyngsmyr AS | Financial services | 2014 |
| Lyngstad & Øvstehage AS | Arts & recreation | 2025 |
| Lyngstad Invest | Financial services | 2011 |
| Lyngstad Rettspsykiatri AS | Health & social care | 2024 |
| Lyngve Eiendom AS | Real estate | 2006 |
| Lyngveien 35 Invest AS | | 2025 |
| Lyngørfjorden Eiendom AS | Real estate | 2008 |
| Lynhjem AS | Real estate | 2022 |
| Lyno AS | Information & communication | 2025 |
| Lynova Labs AS | Information & communication | 2025 |
| Lynra AS | Hospitality | 1997 |
| Lynrask Vask AS | Administrative & support | 2024 |
| Lynvingen Forlag Da | Information & communication | 2006 |
| Lynx Communications AS | Professional & scientific | 1988 |
| Lynx Eiendom AS | Real estate | 2006 |
| Lynx Hill Consulting AS | Real estate | 2023 |
| Lynx Invest AS | Administrative & support | 2023 |
| Lynx Investments AS | | 2014 |
| Lynx Management Da | Professional & scientific | 2009 |
| Lynx Offshore AS | Mining & quarrying | 2018 |
| Lynxit AS | Professional & scientific | 2018 |
| Lyphia AS | Professional & scientific | 2008 |
| Lyra AS | Professional & scientific | 2024 |
| Lyra Invest AS | Professional & scientific | 2020 |
| Lyrell AS | Information & communication | 2020 |
| Lyren Investering Nuf | Professional & scientific | 2020 |
| Lyria AS | | 2019 |
| Lyrosep AS | Wholesale & retail | 1985 |
| Lys & Bobler AS | Hospitality | 2024 |
| Lys Og Varme AS | Construction | 1997 |
| Lys Til Ditt Hus AS | Professional & scientific | 2016 |
| Lysaker Badstue AS | Other services | 2025 |
| Lysaker Bygg AS | Real estate | 2004 |
| Lysaker Consulting Invest AS | | 2019 |
| Lysaker Elektriske AS | Construction | 2017 |
| Lysaker Gård AS | Real estate | 1981 |
| Lysaker Invest AS | | 1996 |
| Lysaker PP11 AS | Real estate | 2017 |
| Lysaker Sirius AS | Real estate | 2013 |
| Lysandra AS | Wholesale & retail | 2025 |
| Lysbalanse AS | | 2025 |
| Lysblikk AS | Professional & scientific | 2026 |
| Lysbordet AS | Information & communication | 2007 |
| Lysch AS | Hospitality | 2024 |
| Lyscott AS | Transport & logistics | 2007 |
| Lysdahl Engineering AS | Financial services | 2016 |
| Lysdekor AS | Wholesale & retail | 2017 |
| Lyse Ideer Oslo AS | Wholesale & retail | 2005 |
| Lysebo Invest AS | | 2024 |
| Lysebotn AS | | 2026 |
| Lyseggen AS | Wholesale & retail | 2005 |
| Lysehagan 46 Eiendom AS | Real estate | 2017 |
| Lysejordet Utvikling AS | Real estate | 2025 |
| Lyseren Strandpark AS | Real estate | 2011 |
| Lyset Elsa Jonsdottir & Sønner Ans | Arts & recreation | 1999 |
| Lysetind AS | Education | 2005 |
| Lysgrønn AS | Professional & scientific | 2026 |
| Lyshaug AS | Wholesale & retail | 2005 |