| Leuthen-Klinikken AS | Stjørdal | 2015 |
| Lev Mer Bpa AS | Skudeneshavn | 2024 |
| Leva-Fro AS | Levanger | 1992 |
| Leva-Fro Marked AS | Levanger | 2021 |
| Leva-Fro Service AS | Levanger | 2021 |
| Levajok Leirskole AS | Sirma | 2015 |
| Levanger Fotterapi AS | Levanger | 2020 |
| Level Helse Og Coaching Da | Jevnaker | 2014 |
| Level Playing Field AS | Tromsø | 2024 |
| Levida AS | Oslo | 2025 |
| Lexaklinikken AS | Ottestad | 2017 |
| Leyla Velvære Og Thai Massasje Salong Da | Oslo | 2015 |
| LG Kinne AS | Stord | 2021 |
| LGK Tannklinikk AS | Fetsund | 2026 |
| LGL Holding AS | Stord | 2021 |
| LGN Invest AS | Stavanger | 2021 |
| LH Fysioterapi AS | Bodø | 2014 |
| Lhgm AS | Tromsø | 2024 |
| Lian & Fjell Oslo AS | Oslo | 2025 |
| Lian Fysioterapi Og Trening AS | Etne | 2024 |
| Liane Holding AS | Harstad | 2020 |
| Liang Invest AS | Klæbu | 2008 |
| Lias AS | Svolvær | 1972 |
| Lias Kompetanse AS | Svolvær | 2021 |
| Libmed AS | Sandnes | 2005 |
| Liceo AS | Steinkjer | 2008 |
| Lico AS | Ski | 2024 |
| Lida AS | Kopervik | 2005 |
| Lie-Bjelland Invest AS | Ræge | 2015 |
| Lien Helse AS | Sande I Sunnfjord | 2013 |
| Lien Legetjenester AS | Larvik | 2025 |
| Liene Fysio AS | Førde | 2018 |
| Lienefysio AS | Naustdal | 2026 |
| Lier Asvo Holding AS | Lier | 1996 |
| Lier Asvo Kommuneleveranser AS | Lier | 2024 |
| Lier Asvo Vta/Aft AS | Lier | 2024 |
| Lier Naprapati AS | Tranby | 2013 |
| Lier Naprapatklinikk AS | Lier | 2010 |
| Lierbyen Legesenter AS | Lier | 2023 |
| Lierklinikken AS | Tranby | 2019 |
| Lierterapeutene Da | Lier | 2023 |
| Liertoppen Tannlegesenter AS | Lierskogen | 2013 |
| Liessem Microelectronics AS | Bergen | 2015 |
| Life Beat Norge AS | Bergen | 2012 |
| Life Dynamics AS | Fredrikstad | 2012 |
| Life Improvement AS | Skien | 2012 |
| Life Kiropraktikk AS | Rolvsøy | 2012 |
| Life Mastery Coaching AS | Lysaker | 2021 |
| Lifecoach AS | Oslo | 2019 |
| Lifehouse AS | Oslo | 2026 |
| Lifekeys AS | Bergen | 2017 |
| Lifeline AS | Hakadal | 1993 |
| Lifestar Holding AS | Nærbø | 2020 |
| Lifezenz MD AS | Grimstad | 2025 |
| Lifi Holding AS | Oslo | 2005 |
| Light Health AS | Rjukan | 2026 |
| Liham Medics AS | Kjeller | 2022 |
| Lilalife AS | Oslo | 2017 |
| Lilie Kiropraktikk & Massasje AS | Oslo | 2025 |
| Liljedal Tann AS | Bodø | 2024 |
| Liljen AS | Harstad | 2006 |
| Liljen Samvirke SA | Oslo | 2017 |
| Liljenroth & Norstad AS | Lier | 1927 |
| Lill-Ann Ruud AS | Leirsund | 2007 |
| Lille Budda AS | Finnsnes | 2012 |
| Lille Grensen Legesenter AS | Oslo | 2001 |
| Lille Grensen Tannklinikk AS | Oslo | 2015 |
| Lille Skaugum AS | Nodeland | 2018 |
| Lille Smil AS | Lillestrøm | 2025 |
| Lille Stjerne AS | Slependen | 2023 |
| Lille Stjerne Dagmamma AS | Sørumsand | 2021 |
| Lilleaker Spesialistlegesenter AS | Oslo | 2018 |
| Lilleaker Tannklinikk AS | Oslo | 2022 |
| Lilleborg Legekontor AS | Oslo | 2024 |
| Lilleeng Legesenter AS | Moss | 2015 |
| Lillegaard Tannklinikk AS | Bodø | 2004 |
| Lillegrims Knekk & Brekk AS | Oslo | 2021 |
| Lillehammer Fysioterapi AS | Lillehammer | 2025 |
| Lillehammer Laserklinikk AS | Lillehammer | 2017 |
| Lillehammer Legesenter Da | Lillehammer | 2007 |
| Lillehammer Nevropsykologi AS | Lillehammer | 2022 |
| Lillehammer Osteopati AS | Lillehammer | 2013 |
| Lillehammer Ung Og Aktiv AS | Lillehammer | 2012 |
| Lillehammer Øre-Nese-Hals AS | Lillehammer | 2009 |
| Lillekollen Legesenter Da | Hunndalen | 2001 |
| Lillemini AS | Saksvik | 2017 |
| Lillepew Tjenester Nuf | Lier | 2021 |
| Lillerud Gård AS | Eidsberg | 2022 |
| Lillesand Logopedi AS | Lillesand | 2024 |
| Lillesand Tannlegesenter AS | Lillesand | 2019 |
| Lillestrøm Gyn Klinikk AS | Lillestrøm | 1997 |
| Lillestrøm Hudlegesenter AS | Kjeller | 2024 |
| Lillestrøm Klinikken AS | Skjetten | 2022 |
| Lillestrøm Legesenter AS | Kjeller | 2018 |
| Lillestrøm Lungeklinikk AS | Lillestrøm | 2022 |
| Lillestrøm Muskel Og Leddklinikk AS | Lillestrøm | 2017 |
| Lillestrøm Oftalmologi AS | Lillestrøm | 2023 |
| Lillestrøm Tannklinikk & Tannlegevakt AS | Lillestrøm | 2014 |
| Lillestrøm Øyeklinikk AS | Lillestrøm | 2021 |
| Lillestrømgynekologene AS | Lillestrøm | 2011 |