| Korea Holdco AS | | 2024 |
| Korea HOLDCO2 AS | | 2022 |
| KPB Holding AS | Real estate | 2011 |
| Kraft & Grutle AS | Administrative & support | 2021 |
| Kraft & Lothe Shipping AS | Transport & logistics | 1993 |
| Kraft Glass & Aluminium AS | Manufacturing | 2001 |
| Krasnashopp.Com AS | Wholesale & retail | 2020 |
| Krasniq Konsulent AS | Professional & scientific | 2020 |
| Krasniq Team AS | Transport & logistics | 2020 |
| Krey AS | Health & social care | 2018 |
| Kringlebotten Eiendom AS | Real estate | 2023 |
| Kringsjå Samdrift AS | Agriculture & fishing | 2011 |
| Krinos Holding AS | | 2020 |
| Krison AS | Professional & scientific | 2026 |
| Krison Holding AS | | 2026 |
| Kristiansen & Aksnes Eiendom AS | Real estate | 2023 |
| Kristoffer Apeland Invest AS | Construction | 2021 |
| Kriva II AS | Real estate | 2010 |
| KRL AS | Financial services | 2004 |
| Krokedal AS | | 2025 |
| Krug Holding AS | Construction | 2019 |
| Krumsvik Elektro AS | Construction | 2017 |
| Kråkebolleutvikling AS | Agriculture & fishing | 1985 |
| KS Holding AS | Financial services | 2006 |
| Ksol Holding AS | | 2024 |
| Ksu Investeringer AS | | 2026 |
| KSV AS | Health & social care | 2020 |
| KSV Eiendom AS | Real estate | 2020 |
| Kuleisen AS | Arts & recreation | 2016 |
| Kunnskapshuset AS | Real estate | 2006 |
| KV Rør AS | Construction | 2023 |
| Kvala Autosenter AS | Wholesale & retail | 2002 |
| Kvala Barnehage AS | Education | 1999 |
| Kvala Butikksenter AS | Real estate | 2005 |
| Kvala Eiendom AS | Wholesale & retail | 1989 |
| Kvala Frisørteam AS | Other services | 2016 |
| Kvala Industriservice AS | Manufacturing | 2015 |
| Kvalamarka 1 AS | Real estate | 2017 |
| Kvalamarka 17 AS | Real estate | 2006 |
| Kvalamarka 23 AS | Real estate | 2006 |
| Kvalamarka 27B AS | Real estate | 2000 |
| Kvalamarka 5 AS | Construction | 2016 |
| Kvalamarka Invest AS | Real estate | 2008 |
| KVALAMARKA3 AS | Real estate | 2020 |
| Kvale Bygg & Prosjektrådgivning AS | Construction | 2016 |
| Kvalen AS | Administrative & support | 2016 |
| Kvednatunet Allé AS | Real estate | 2020 |
| Kvednatunet Borettslag Holding AS | Real estate | 2022 |
| Kvednatunet Hageby Borettslag Holding AS | Households | 2022 |
| Kvednatunet Hageby Byggetrinn 2 AS | Real estate | 2025 |
| KVH Utleie AS | Real estate | 2023 |
| Kvik Haugesund AS | Wholesale & retail | 2006 |
| Kvitsøygata 9 AS | Real estate | 2013 |
| Kvitsøygt NR 4 AS | Real estate | 2008 |
| KWS AS | Professional & scientific | 2025 |
| Kyruco Investments AS | Real estate | 2007 |
| Kystby Eiendom AS | Real estate | 2022 |
| Kystgjerdet AS | Wholesale & retail | 2015 |
| Kyvik & Co AS | Real estate | 1917 |
| Kyvik Industrivarehuset AS | Wholesale & retail | 1990 |
| Kyvikdalen Barnehage SA | Education | 2004 |
| Kåre Ekrene Trafikkskole AS | Education | 2010 |
| L. Frøyland Holding AS | | 2021 |
| La Divina AS | Hospitality | 2024 |
| Laastad Eiendom AS | Real estate | 1947 |
| Lah Invest AS | Financial services | 2005 |
| Lailas Sjakkskole AS | Education | 2020 |
| Laksgard AS | Agriculture & fishing | 2026 |
| Lam Invest AS | Wholesale & retail | 2014 |
| Lamina AS | | 2026 |
| Langelandsvik Holding AS | Real estate | 2020 |
| Langgaten AS | Households | 1948 |
| Lars Kraft AS | Professional & scientific | 2005 |
| Larssen & Amaral AS | Professional & scientific | 2016 |
| Larssen & Amaral Holding AS | Professional & scientific | 2018 |
| Larssen & Lønning Eiendom AS | | 2000 |
| Larssen Holding AS | Wholesale & retail | 2006 |
| Larssen Sko AS | Wholesale & retail | 2006 |
| Lascala Haugesund Ans | Hospitality | 2002 |
| Lattløk AS | Real estate | 2006 |
| Laursen Tek AS | | 2025 |
| Lava Holding AS | Real estate | 2004 |
| Lava Invest AS | Real estate | 2018 |
| Lea Machine Services AS | Wholesale & retail | 2024 |
| Leas AS | | 2024 |
| Led Holding AS | | 2024 |
| Ledlysspesialisten AS | Real estate | 2014 |
| Lege Trond Valle AS | Health & social care | 2005 |
| Leifsen Handel AS | Wholesale & retail | 2016 |
| Leis AS | Construction | 2023 |
| Lekeplaneten Holding AS | Wholesale & retail | 2003 |
| Leknes Investering AS | Other services | 2012 |
| Leknes Marine AS | Professional & scientific | 2019 |
| Lemith Eiendom AS | Real estate | 2020 |
| Lendmann Eiendom BHG AS | Real estate | 2025 |
| Lene Tønnessen Studio AS | Professional & scientific | 2025 |
| Leno Holding AS | | 2023 |
| Lervik Eiendom Holding AS | Real estate | 2012 |
| Lervik Ur AS | Wholesale & retail | 1990 |
| Les Holding AS | | 2018 |