| Javier AS | Information & communication | 2019 |
| JDM Eiendom AS | Real estate | 2022 |
| JDM Holding AS | Construction | 2018 |
| Jea Trading AS | | 2019 |
| Jergo AS | Wholesale & retail | 2009 |
| JM Bygg AS | Construction | 2025 |
| JMJ Holding AS | Real estate | 2021 |
| JMN Plan Og Arkitektur AS | Professional & scientific | 2011 |
| Jofa AS | Wholesale & retail | 1986 |
| Johnsen & Nilsen Eiendom AS | Real estate | 2008 |
| Juvikflaten Eiendom AS | Real estate | 2006 |
| K2 Technology AS | | 2024 |
| Kasta AS | Other services | 2025 |
| Kec Næringseiendom AS | Real estate | 2007 |
| Kel Investment AS | | 2025 |
| Kess VVS AS | Construction | 2021 |
| Kfo Eiendom AS | Real estate | 2019 |
| Kikhaugen AS | Real estate | 2020 |
| Kimrav Holding AS | | 2026 |
| Kine's Hud Og Kroppspleie AS | Other services | 2012 |
| Kleppe Metering AS | Professional & scientific | 2017 |
| Kleppestø Eiendom AS | Other services | 1993 |
| Kleppestø Fysioterapi AS | Health & social care | 2019 |
| Kleppestø Holding AS | Wholesale & retail | 2008 |
| Kleppestø Optikk AS | Wholesale & retail | 2008 |
| Kleppestø Senter AS | Real estate | 1998 |
| Kleppestø Sjøfront AS | Information & communication | 2019 |
| Kler AS | Information & communication | 2024 |
| Klimakoden AS | Construction | 2024 |
| Klubblisten Da | Administrative & support | 2021 |
| Kolgel Holding AS | | 2019 |
| Kontur Askøy AS | Wholesale & retail | 2017 |
| Kontur Consept Store AS | Wholesale & retail | 2025 |
| Krohn Hytter AS | Construction | 2022 |
| Krohn Premium AS | Professional & scientific | 2023 |
| Krohn Premium Gruppen AS | Real estate | 2019 |
| Krokåsvegen Vann Og Avløp SA | Water & waste | 2020 |
| Kudos Regnskap AS | Professional & scientific | 2017 |
| Kviten Holding AS | Real estate | 2024 |
| Kvitravn AS | | 2022 |
| Kleppestø Torg A/S | Real estate | 1988 |
| L&K Eiendom AS | Real estate | 2019 |
| Larsen Glass Eiendom AS | Real estate | 2010 |
| Lat Invest AS | | 2020 |
| Lauvøy AS | Real estate | 2008 |
| Laviksvingen AS | Real estate | 2006 |
| Ledback AS | Wholesale & retail | 2025 |
| Lege Andreas V. Andersen AS | Health & social care | 2026 |
| Lerø Gruppen Holding AS | Information & communication | 2024 |
| Li-Sti Holding AS | | 2025 |
| Liavegen 83 AS | Real estate | 2024 |
| Lil'Goodies AS | Information & communication | 2025 |
| Lillestøl Eiendom AS | | 2005 |
| Lindelid & Knutsen AS | Construction | 2015 |
| Lindelid Takst AS | Real estate | 2019 |
| Lindenberg Norway AS | Hospitality | 2024 |
| Logisense AS | Wholesale & retail | 2020 |
| Lønsj AS | Wholesale & retail | 2020 |
| Ma-Holding AS | | 2019 |
| Macon Eiendom AS | Real estate | 2015 |
| MAKS4 Invest AS | | 2021 |
| Maleralliansen AS | Construction | 2022 |
| Malermester Røed AS | Construction | 1998 |
| Marceliussen Invest AS | | 2019 |
| Marine & Bio Service AS | Transport & logistics | 2023 |
| Marine Traveller AS | Transport & logistics | 2016 |
| Marinor AS | Wholesale & retail | 1982 |
| Marinor Eiendom AS | Real estate | 2006 |
| Marinor Invest AS | Wholesale & retail | 2007 |
| Maskin Entreprenøren AS | Construction | 2024 |
| Mati Media AS | Construction | 2017 |
| Max Gruppen AS | Construction | 2019 |
| Maynor AS | Wholesale & retail | 1998 |
| Mesterdrift AS | Real estate | 2021 |
| Mikal Holding AS | Manufacturing | 2005 |
| Mikalsen Holding AS | Financial services | 2005 |
| Milan AS | Wholesale & retail | 1999 |
| Moda Regnskap AS | Professional & scientific | 2016 |
| Mohema Holding AS | Other services | 2016 |
| Montera AS | Construction | 2003 |
| Montera Gruppen AS | Construction | 2019 |
| Montro AS | Professional & scientific | 2018 |
| Muen Cei AS | Real estate | 2007 |
| Multiwork Offshore AS | Professional & scientific | 2013 |
| Namo Sushi Group AS | Hospitality | 2022 |
| Nedre Kleppe Grunneigarlag AS | Real estate | 2022 |
| Nemi Invest AS | | 2026 |
| Nero Tulip AS | Professional & scientific | 2023 |
| NH Elektro AS | Construction | 2017 |
| Nhe Holding AS | Construction | 2017 |
| Nic Jacobsen Entreprenør AS | Construction | 1990 |
| Nilsen & Sture Betong AS | Construction | 2004 |
| Nilsen & Sture Eiendom AS | Real estate | 2012 |
| Nilsen Eiendommer AS | Real estate | 2021 |
| Nilsen Marin Og Maskin AS | Construction | 2022 |
| Nilsen VVS AS | Construction | 2014 |
| Niltor Fishing AS | Administrative & support | 2026 |
| Niro Gruppen AS | Professional & scientific | 2024 |
| Niro Gruppen Eiendomsservice AS | Real estate | 2019 |
| Niro Gruppen Industri AS | Administrative & support | 2014 |