| Kabal Employee Invest AS | | 2023 |
| Kabra AS | Professional & scientific | 2016 |
| Kabra Design AS | Professional & scientific | 2021 |
| Kabros AS | Financial services | 2013 |
| Kadme AS | Information & communication | 2002 |
| Kaefer Construction AS | Construction | 2002 |
| Kaefer Energy AS | Mining & quarrying | 1977 |
| Kaffehuset AS | Wholesale & retail | 1971 |
| Kaffelade Stavanger AS | Hospitality | 2018 |
| Kah Invest AS | Financial services | 2005 |
| Kaheth AS | Real estate | 2014 |
| Kai Hansen AS | Manufacturing | 1986 |
| Kaikontoret AS | Real estate | 2015 |
| Kairos Technology AS | Professional & scientific | 2014 |
| Kal-El AS | Arts & recreation | 2021 |
| Kalanda AS | | 2026 |
| Kaldestad Consulting Da | Professional & scientific | 2006 |
| Kaldras Invest AS | | 2016 |
| Kalhammarveien 53 AS | Real estate | 2002 |
| Kalhammeren Boligutvikling AS | Real estate | 2010 |
| Kalleberg Gruppen AS | | 2025 |
| Kalsheim Harstad Holding AS | | 2020 |
| Kalstø AS | Professional & scientific | 2022 |
| Kalvøy Maritime Park AS | Administrative & support | 2010 |
| Kalyx AS | Information & communication | 2026 |
| Kama Consulting AS | Mining & quarrying | 2005 |
| Kamato Invest AS | Financial services | 2013 |
| Kambo AS | Professional & scientific | 2020 |
| Kameloso AS | Administrative & support | 2021 |
| Kami Collection AS | Manufacturing | 2019 |
| Kamigu Holding AS | Professional & scientific | 2023 |
| Kanal Eiendom AS | Real estate | 2007 |
| Kanalarmen 15 AS | Real estate | 2017 |
| Kanalarmen 15 Holding AS | Real estate | 2024 |
| Kanalarmen 17 AS | Real estate | 2017 |
| Kanalpiren AS | Real estate | 2002 |
| Kanalsletta 1 AS | Real estate | 2008 |
| Kanalsletta 14 AS | Real estate | 2011 |
| Kanalsletta 2 AS | Real estate | 2008 |
| Kanalsletta Utvikling AS | Real estate | 2010 |
| Kanalveien 1 AS | Real estate | 2002 |
| Kancha Jar AS | Real estate | 2011 |
| Kancha Jar Global AS | Professional & scientific | 2014 |
| Kandona AS | Professional & scientific | 2009 |
| Kanelsnurren Holding AS | Professional & scientific | 2020 |
| Kani Bygg Limited Nuf | Real estate | 2025 |
| Kannik Eiendom AS | Real estate | 2001 |
| Kannik Fysikalske Institutt AS | Health & social care | 2012 |
| Kannik Invest AS | Professional & scientific | 2019 |
| Kannik Park Hotellbygg Da | Real estate | 1996 |
| Kannikgaten 17 AS | Real estate | 2003 |
| Kannikgaten 17 Seksjon 12 AS | Real estate | 2024 |
| Kanonball AS | Financial services | 2005 |
| Kansui AS | Hospitality | 2023 |
| Kantarell AS | Real estate | 2019 |
| Kantinegodt AS | Hospitality | 2019 |
| Kaos AS | | 2021 |
| Kaos Frisør AS | Other services | 2020 |
| Kapecc Invest AS | Professional & scientific | 2019 |
| Kaper Konsult AS | Professional & scientific | 2017 |
| Kaph Entreprenør AS | Construction | 2015 |
| Kaph Næringsmegling AS | Real estate | 2005 |
| Kapir Investering AS | | 2022 |
| Kapita AS | Real estate | 1987 |
| Kar Kam Kat AS | Financial services | 2005 |
| Karbid AS | Professional & scientific | 2022 |
| Kari E. Bjelland AS | Health & social care | 2012 |
| Kari Halvorsen Sivilarkitekt Mnal AS | Professional & scientific | 2001 |
| Karianne Invest AS | Financial services | 2015 |
| Kark AS | Real estate | 1994 |
| Karlson Eiendom AS | Real estate | 2018 |
| Karlson Psykologene AS | Health & social care | 2016 |
| Karoline Gryte AS | Wholesale & retail | 2022 |
| Karosseri Magi AS | Other services | 2014 |
| Karrierelaboratoriet AS | Education | 2018 |
| Karro Design AS | Professional & scientific | 2024 |
| Karsten Ellingsen AS | | 2008 |
| Kasa AS | Professional & scientific | 2026 |
| Kaskade Holding AS | Professional & scientific | 2021 |
| Kate's Invest AS | Financial services | 2005 |
| Kathrine Maaseide AS | | 2017 |
| Katima AS | Financial services | 2010 |
| Katle - Holding AS | Health & social care | 2021 |
| Katle Øre-Nese-Hals AS | Health & social care | 2021 |
| Katoma Invest AS | Real estate | 2013 |
| Katth Invest AS | Financial services | 2002 |
| Kattro Invest AS | | 2026 |
| Kaupang Karbonlager Ans | Water & waste | 2025 |
| Kawi AS | Financial services | 2005 |
| Kay AS | Professional & scientific | 1994 |
| Kaya Holding AS | Hospitality | 2025 |
| Kaymide Group AS | Professional & scientific | 2026 |
| Kazana Frisør Ans | Other services | 1993 |
| Kbe Holding AS | Other services | 2018 |
| KBM AS | | 2025 |
| KBR Invest AS | Financial services | 2010 |
| KCL Invest AS | | 2026 |
| Kdi AS | Real estate | 2005 |
| KDJ Invest AS | Real estate | 2008 |
| Kdkristensen AS | Health & social care | 2020 |