| Kalyke Holding AS | Professional & scientific | 2025 |
| Kamari Holding AS | | 2001 |
| Kanaldrift AS | Health & social care | 2013 |
| Kaos Holding AS | Professional & scientific | 2011 |
| Kapax AS | Professional & scientific | 2014 |
| Karlsen Diving AS | Agriculture & fishing | 2024 |
| Katapult AS | Professional & scientific | 2013 |
| Katem Byggtjenester AS | Construction | 2015 |
| Kato Interior Design AS | Construction | 2022 |
| Kattugletoppen Huseierlag SA | Other services | 2005 |
| KDV - Multi AS | Wholesale & retail | 2013 |
| Kein 2 AS | Wholesale & retail | 2026 |
| Kein AS | Wholesale & retail | 2018 |
| Kein Invest AS | Administrative & support | 2022 |
| Kerra AS | Wholesale & retail | 2024 |
| Kesi Holding AS | Real estate | 2005 |
| Kesi Invest AS | Real estate | 2004 |
| Kesst AS | Professional & scientific | 2014 |
| Key-Control AS | Wholesale & retail | 2025 |
| Keypex AS | Professional & scientific | 1997 |
| KFL Holding AS | | 2023 |
| Khaulander AS | | 2019 |
| Khi Holding AS | Professional & scientific | 2016 |
| KHM Magnus Holding AS | | 2023 |
| Khtw Invest AS | | 2021 |
| Kikka Holding AS | | 2022 |
| Kilden Hud Og Kroppspleie AS | Other services | 2001 |
| Kingpin Lagunen AS | Hospitality | 2016 |
| Kiropraktor Stine Hildenes AS | Health & social care | 2023 |
| Kirsten Rokstad AS | Health & social care | 2015 |
| Kleppe Invest AS | | 2026 |
| KML Holding AS | Administrative & support | 2005 |
| Knall Holding AS | | 2019 |
| Knatten Holding AS | | 2021 |
| Knatten Invest AS | Real estate | 2005 |
| Knerten Lekestue Ans | Health & social care | 1996 |
| Knut Hordnes AS | Health & social care | 2011 |
| Knutsen Holding Bergen AS | | 2019 |
| Knutus AS | Financial services | 2010 |
| Kofod AS | | 2023 |
| Kokstadv 46 AS | Professional & scientific | 1993 |
| Konfekten AS | Wholesale & retail | 2017 |
| Kopek AS | Information & communication | 2021 |
| KR Garviks Eftf AS | Wholesale & retail | 1976 |
| Kraft Blikk AS | Construction | 2013 |
| Kranz Tobi AS | Real estate | 2005 |
| KRG Group AS | Real estate | 2013 |
| Krilun AS | | 2025 |
| Kristar AS | Professional & scientific | 2005 |
| Kristian Rykkje Holding AS | Information & communication | 2023 |
| Krohnegården Byggservice AS | Construction | 2009 |
| Krohntræet AS | Real estate | 2022 |
| Krohnås Eiendom AS | Real estate | 2024 |
| Krohnås Holding AS | Real estate | 2024 |
| Krohnås Prosjekt AS | Real estate | 2018 |
| Krohnås Utvikling AS | Real estate | 2017 |
| Krohnåsveien 1 AS | Real estate | 1991 |
| KTH Holding AS | Real estate | 2005 |
| Kvarme & Reinertsen Kapitalforvaltning AS | Financial services | 2015 |
| Kystlandsbyen AS | Construction | 2004 |
| Kystlandsbyen Utleie AS | Real estate | 2008 |
| Kyte Holding AS | | 2012 |
| Kjell Norstrand AS | Wholesale & retail | 1974 |
| Köde AS | Information & communication | 2021 |
| L-A Holding AS | | 2022 |
| L. Høvik Holding AS | | 2025 |
| La Holding AS | | 2020 |
| Lagunen AS | Real estate | 1982 |
| Lagunen Auto Care AS | Other services | 2013 |
| Lagunen Da | Real estate | 2002 |
| Lagunen Eiendom AS | Real estate | 1995 |
| Lagunen Helsebutikk AS | Wholesale & retail | 1990 |
| Lagunen Kiropraktikk AS | Health & social care | 2024 |
| Lagunen Servicebakeri AS | Hospitality | 2015 |
| Lagunen Specsavers AS | Wholesale & retail | 2015 |
| Lagunen Tannlege Njøsen & Øren AS | Health & social care | 2021 |
| Laguneparken Fysioterapi AS | Health & social care | 2014 |
| Laguneveien 21 Da | Real estate | 2019 |
| Lahn Eiendom AS | Real estate | 2000 |
| Laks Eiendom AS | Professional & scientific | 2011 |
| Lambach Invest AS | Real estate | 2020 |
| Larsen-Invest AS | | 2017 |
| Lawley Holding AS | | 2022 |
| Lcss Holding AS | | 2023 |
| Leave Spildefilm AS | Information & communication | 2021 |
| Leet System AS | Information & communication | 2020 |
| Lege Asbjørnsen AS | Health & social care | 2019 |
| Legehuset Raa AS | Health & social care | 2020 |
| Legekontoret I Laguneparken Da | Health & social care | 2019 |
| Legio.No Da | Professional & scientific | 2005 |
| Lekven Nilsen AS | Other services | 2019 |
| Licon AS | | 2021 |
| Lie-Nilsen F. Invest AS | Real estate | 2025 |
| Lie-Nilsen F.I. Holding AS | Real estate | 2024 |
| Liind AS | Professional & scientific | 2018 |
| Lila Invest AS | | 2025 |
| Lilikoi AS | Professional & scientific | 2022 |
| Limeberry AS | Professional & scientific | 2025 |
| Limeberry Holding AS | Professional & scientific | 2025 |
| Lin Digital AS | Professional & scientific | 2025 |