| Kjenndalen AS | Financial services | 2005 |
| KJS Eiendom 1 AS | Real estate | 2014 |
| KJS Eiendom 2 AS | Real estate | 2014 |
| KJS Eiendom 3 AS | Real estate | 2014 |
| KJS Eiendom 7 AS | Real estate | 2015 |
| Kjøss AS | Real estate | 2011 |
| Kjøss Invest AS | Real estate | 2016 |
| Klever Bygg AS | Construction | 2025 |
| Klikk Panikk Da | Arts & recreation | 2024 |
| Klima Facility AS | Construction | 2009 |
| Klkj Invest AS | | 2021 |
| KLM Gården Invest AS | Real estate | 2001 |
| Klokkerfjellet AS | Professional & scientific | 2020 |
| Klovning Capital AS | Professional & scientific | 2023 |
| Knappen Eiendom AS | Real estate | 2023 |
| Knut Farestvedt Invest Limited Nuf | Real estate | 2009 |
| Koke Profilering AS | Wholesale & retail | 2024 |
| Kokken Bom AS | Other services | 2015 |
| Kokstad 175 AS | Real estate | 2017 |
| Kokstad 176 AS | Real estate | 2017 |
| Kokstaddalen 45 AS | Real estate | 2009 |
| Koldal Utleie AS | Administrative & support | 2025 |
| Kombo AS | Real estate | 2004 |
| Kompis Hundesalong AS | Other services | 2025 |
| Konditormester Kate Kippersund AS | Manufacturing | 2017 |
| Kongen Terrasse AS | Real estate | 2004 |
| Kontorvarehuset Bergen AS | Wholesale & retail | 2000 |
| Konvekst Invest AS | Financial services | 2016 |
| Kopesteinen Holding AS | Wholesale & retail | 2011 |
| Kort Sagt AS | Wholesale & retail | 2026 |
| Krah Holding AS | | 2018 |
| Krav Maga Selvforsvar AS | Education | 2026 |
| Kreativflow AS | Information & communication | 2025 |
| Krfh AS | | 2022 |
| Kribring Holding AS | | 2025 |
| Krifje Invest AS | | 2021 |
| Kristian Fjeld Holding AS | | 2021 |
| Krohn Health & Fitness AS | Education | 2026 |
| Krohnstad Boligeiendom AS | Real estate | 2004 |
| Krohnstad Holding AS | | 2025 |
| Kronstad Invest AS | Real estate | 2013 |
| Kronstad X AS | Real estate | 1918 |
| Krudacos Eiendom AS | Real estate | 2007 |
| Kryptograf Da | Arts & recreation | 2024 |
| Krystof Bygg AS | Construction | 2011 |
| Krystof Eiendom AS | Construction | 2013 |
| Krystof Holding AS | Construction | 2017 |
| KS Vaskerelven | Real estate | 1986 |
| Ktek AS | | 2020 |
| Kulla Productions AS | Information & communication | 2017 |
| Kultur Eiendom AS | | 2026 |
| Kulturhusvegen 19 AS | Real estate | 2024 |
| Kunnskapskilden AS | Transport & logistics | 2024 |
| Kurs 74 AS | Education | 2022 |
| Kvalitets Bygg AS | Construction | 2026 |
| Kvalvåg Havn AS | Real estate | 2021 |
| Kvernslåttet II AS | Real estate | 2014 |
| Kvikki Media AS | Information & communication | 2025 |
| Karosserifabrikken AS | Other services | 1936 |
| Lagersentralen Kjøkkelvik AS | Real estate | 2025 |
| Lagersentralen Nesttun AS | Real estate | 2023 |
| Lagersentralen Sandviken AS | Transport & logistics | 2025 |
| Lakkgruppen AS | Wholesale & retail | 2017 |
| Landaas Teige Invest AS | | 2022 |
| Landmark Blomster AS | Wholesale & retail | 2026 |
| Landås Begravelseshjelp AS | Other services | 1972 |
| Landås Invest AS | Financial services | 2007 |
| Langemyrskogen Huseierlag SA | Other services | 2001 |
| Lanth AS | Real estate | 2005 |
| Lars Åge Berge AS | | 2010 |
| Larvik Brannstasjon AS | Real estate | 1999 |
| Lasse Midtrød AS | Administrative & support | 2011 |
| Laude AS | | 2021 |
| Le Chef Cateringservice AS | Hospitality | 1990 |
| Lege Bent Folkvord AS | Health & social care | 2006 |
| Lege Sindre Grindheim AS | Health & social care | 2022 |
| Legenzi AS | Wholesale & retail | 2024 |
| Leigh Claire AS | | 2026 |
| Leikvoll Holding AS | Financial services | 2005 |
| Lepsøy Holding AS | Financial services | 2005 |
| Lerheim Consulting AS | Information & communication | 2016 |
| Lerum Eiendom AS | Real estate | 2021 |
| Lerum Holding AS | Health & social care | 2010 |
| Leyline AS | Financial services | 2006 |
| Libeco Consulting AS | Professional & scientific | 2021 |
| Lille Skjold AS | | 2023 |
| Lillehatten Holding AS | | 2026 |
| Limco AS | Real estate | 1988 |
| Limco Regnskap AS | Professional & scientific | 2008 |
| Limco Services AS | Administrative & support | 2013 |
| Limco Økonomi AS | Professional & scientific | 1988 |
| Lind Holding AS | Health & social care | 2005 |
| Lindfors Foundry AS | Information & communication | 2016 |
| Lindås Eiendom AS | Real estate | 1997 |
| Liseth Eiendom AS | Real estate | 1995 |
| Litleré Mat AS | Wholesale & retail | 2016 |
| Liv Osland Og Jørn Joachimsen Ans | Transport & logistics | 1989 |
| Livarden AS | Administrative & support | 2013 |
| Livarden TDC AS | Professional & scientific | 2018 |
| Living Invest AS | | 2009 |