| Laboratoriebygg AS | Real estate | 1982 |
| Laboratorio AS | Other services | 2021 |
| Laboremus Group AS | Professional & scientific | 1989 |
| Laboremus Industrier AS | Wholesale & retail | 2001 |
| Laboremus Prospera AS | Professional & scientific | 2005 |
| Laboro AS | Transport & logistics | 2021 |
| Labrador CMS AS | Information & communication | 2007 |
| Labrador Invest AS | Financial services | 2024 |
| Labrida AS | Professional & scientific | 2012 |
| Labs AS | Construction | 2016 |
| Labs by Oxx AS | Information & communication | 2022 |
| Labsoft AS | Information & communication | 2021 |
| Labtrans AS | Transport & logistics | 2016 |
| Labyrint Consulting Ans | Education | 2010 |
| Labyrinth AS | Hospitality | 2026 |
| Lac AS | Professional & scientific | 2015 |
| Laca Eiendom AS | Real estate | 2012 |
| Lacave AS | Wholesale & retail | 2005 |
| Lacerta AS | Hospitality | 2026 |
| Lacertidae AS | Wholesale & retail | 2015 |
| Lackgren Holding AS | | 2025 |
| Lactalis Norge AS | Wholesale & retail | 2008 |
| Lactosa AS | Financial services | 1990 |
| Lacy's Choice Ans | Wholesale & retail | 2013 |
| Ladan AS | Wholesale & retail | 2026 |
| Ladderick AS | Professional & scientific | 2021 |
| Ladderudåsen Vest AS | Real estate | 2015 |
| Lade Alle 67-69 Holding AS | Real estate | 2010 |
| Lade Arena Bolig 1 AS | Real estate | 2025 |
| Lade Arena Bolig 2 AS | Real estate | 2025 |
| Lade Arena Holding AS | Real estate | 2021 |
| Lade Arena Prosjekt AS | Real estate | 2025 |
| Lade Capital AS | | 2023 |
| Lade Eiendomsinvest AS | Real estate | 2021 |
| Lade Kapital AS | Real estate | 2022 |
| Ladebekken 30 AS | Real estate | 2023 |
| Ladebyrået AS | Professional & scientific | 2025 |
| Ladee AS | Wholesale & retail | 2019 |
| Ladel Ladel AS | | 2022 |
| Laden AS | Professional & scientific | 2026 |
| Ladessa AS | Financial services | 1993 |
| Ladicah AS | Wholesale & retail | 2024 |
| Ladma Holding AS | Real estate | 2021 |
| Ladyandthetramp AS | | 2025 |
| Ladybug AS | | 2022 |
| Ladyburk AS | Wholesale & retail | 2014 |
| Lae Invest AS | Real estate | 2021 |
| Laeng AS | Real estate | 1997 |
| Laeng Bedriftservice AS | Professional & scientific | 1997 |
| Laer & Co AS | Real estate | 2022 |
| Laetari AS | Professional & scientific | 2005 |
| Laetificus Media AS | Information & communication | 2022 |
| Lafa Holding AS | | 2023 |
| Lafacil AS | Information & communication | 2017 |
| Laffens Drift Og Vedlikehold AS | Administrative & support | 2012 |
| Laficco AS | Hospitality | 2023 |
| Lafinto Drammen AS | Manufacturing | 2023 |
| Laft Software AS | Information & communication | 2006 |
| Laga Co AS | Wholesale & retail | 2026 |
| Lagarto AS | Real estate | 2022 |
| Lagdinorge AS | Professional & scientific | 2025 |
| Lage Eiendom AS | Real estate | 2016 |
| Lage Holding AS | | 2021 |
| Lager & Salg AS | Wholesale & retail | 1993 |
| Lager 14 AS | Real estate | 2024 |
| Lager 157 AS | Wholesale & retail | 2018 |
| Lager Invest AS | Financial services | 2021 |
| Lagerboks AS | Real estate | 2006 |
| Lagerboks Transport AS | Transport & logistics | 2017 |
| Lagercrantz Group AB | Wholesale & retail | 2009 |
| Lagerdrift Invest AS | Real estate | 2014 |
| Lagerflex AS | Real estate | 2026 |
| Lagerflex Moskog AS | Construction | 2026 |
| Lagerhaus AS | Wholesale & retail | 2014 |
| Lageroslo.No AS | Real estate | 2019 |
| Lagerseksjoner Heia AS | Real estate | 1969 |
| Lagerseksjoner Kongsvinger AS | Real estate | 2021 |
| Lagerseksjoner Øst AS | Real estate | 2020 |
| Lagerselskapet 100 AS | Professional & scientific | 2008 |
| Lagerselskapet 107 AS | | 2017 |
| Lagerselskapet 108 AS | | 2017 |
| Lagerselskapet 109 AS | | 2017 |
| Lagerselskapet 110 AS | | 2017 |
| Lagerselskapet 97 AS | | 2008 |
| Lagerselskapet Holding AS | | 2003 |
| Lagersjefen Container AS | Real estate | 2026 |
| Lagerutleie Vestby Da | Real estate | 2025 |
| Lagesen & Haavik A/S | Financial services | 1988 |
| Laget Eiendom AS | Real estate | 2023 |
| Lago Eiendom AS | Real estate | 2005 |
| Lagole Limited | Real estate | 2020 |
| Lagom AS | | 2021 |
| Lagopus AS | Real estate | 1998 |
| Lagopus AS | Financial services | 1993 |
| Lagopus Helse AS | Health & social care | 2012 |
| Lagopus Invest AS | | 1999 |
| Lagopus Mutus AS | Financial services | 1992 |
| Lagro Holding AS | | 2021 |
| Lagu AS | Real estate | 2019 |
| Lagun Holding AS | Construction | 2005 |