| Kinetika AS | | 2025 |
| Kinexon Industries GmbH | Professional & scientific | 2019 |
| Kinexon Sports & Media GmbH | Information & communication | 2019 |
| King & Queen of Diamonds Ans | Professional & scientific | 2008 |
| King and Queen Musikk Og Sportsbar AS | Hospitality | 2015 |
| King Brensel AS | Wholesale & retail | 2024 |
| King Consulting AS | Professional & scientific | 2013 |
| King Design AS | Professional & scientific | 1994 |
| King Falafel AS | Hospitality | 2019 |
| King Food AS | Hospitality | 2002 |
| King Kong Company AS | Wholesale & retail | 2017 |
| King Kong Engros AS | | 2025 |
| King Kong Invest AS | Professional & scientific | 2005 |
| King Kong Kardio AS | Health & social care | 2021 |
| King Midas International Ans | Arts & recreation | 1999 |
| King Pin International AS | Wholesale & retail | 2024 |
| Kinga Insurance AS | Professional & scientific | 2019 |
| Kingbird AS | Professional & scientific | 1990 |
| Kingbolt AS | Information & communication | 2000 |
| Kingdom Invest AS | Information & communication | 2017 |
| Kingdom Nordic Norge Nuf | Manufacturing | 2024 |
| Kinge Capital AS | | 2023 |
| Kingfisher Capital AS | | 2022 |
| Kingfrog Management AS | Professional & scientific | 2020 |
| Kingkenny AS | Financial services | 2021 |
| Kingkong AS | Wholesale & retail | 2016 |
| Kingkungare Da | Arts & recreation | 2010 |
| Kingos Gate 11-13 AS | Real estate | 2018 |
| Kingos Invest AS | | 2024 |
| Kings Cut AS | Other services | 2024 |
| Kings Gambit AS | Professional & scientific | 2026 |
| KINGSBRIDGE5 AS | | 2021 |
| Kingsford Shipping AS | Real estate | 2018 |
| Kingside AS | Information & communication | 2026 |
| Kingspan AS | Wholesale & retail | 2013 |
| Kinico AS | Professional & scientific | 2019 |
| Kinland AS | Real estate | 2015 |
| Kinland I AS | Real estate | 2011 |
| Kinland II AS | Real estate | 2012 |
| Kinland III AS | Real estate | 2000 |
| Kinland IV AS | Real estate | 2019 |
| Kinland Property I AS | Real estate | 2010 |
| Kinland Property II AS | Real estate | 2012 |
| Kinland Property II B AS | Real estate | 2016 |
| Kinland Property III AS | Real estate | 2006 |
| Kinland Property IV AS | Real estate | 2018 |
| Kinland Property IV B AS | Real estate | 2017 |
| Kinland Property Vi AS | Real estate | 2022 |
| Kinland V AS | Real estate | 2016 |
| Kinland Vi AS | Real estate | 2022 |
| Kinlimarka 107 AS | Real estate | 2025 |
| Kinn Consulting AS | Real estate | 2017 |
| Kinni Solar AS | Energy | 2021 |
| Kinninil AS | Other services | 2021 |
| Kinowski Entreprenør AS | Construction | 2018 |
| Kinsella Studio AS | Arts & recreation | 2022 |
| Kinship AS | Professional & scientific | 2026 |
| Kinspo AS | Information & communication | 2020 |
| Kintech AS | Professional & scientific | 2022 |
| Kintsugi Group AS | Wholesale & retail | 2026 |
| Kinver AS | Information & communication | 2000 |
| Kiosk! AS | Wholesale & retail | 2021 |
| Kioskdrift Agnihotri AS | Wholesale & retail | 2023 |
| Kioskdrift Boukoulo Guariachi AS | Wholesale & retail | 2025 |
| Kioskdrift Ftiwi Weldu AS | Wholesale & retail | 2025 |
| Kioskdrift Kaid Wakid AS | Wholesale & retail | 2025 |
| Kioskdrift Khan AS | Wholesale & retail | 2026 |
| Kioskdrift Kucuk AS | Wholesale & retail | 2025 |
| Kioskdrift Said Hamza AS | Wholesale & retail | 2026 |
| Kioskdrift Ullah AS | Wholesale & retail | 2024 |
| Kioskdrift Vipan Kumar Agnihotri AS | Wholesale & retail | 2021 |
| Kiosken Holding AS | | 2023 |
| Kip Management AS | Financial services | 2026 |
| Kip Medisin AS | Health & social care | 2018 |
| Kipara AS | Wholesale & retail | 2007 |
| Kipellier AS | Wholesale & retail | 2025 |
| Kipepeo AS | | 2005 |
| Kippenes AS | Real estate | 2007 |
| Kiqs AS | Information & communication | 2026 |
| Kirabo AS | | 2022 |
| Kirah AS | Professional & scientific | 2019 |
| Kirakuna AS | Information & communication | 2014 |
| Kiran Productions AS | Arts & recreation | 2022 |
| Kirand AS | Professional & scientific | 2005 |
| Kirans Holding AS | Arts & recreation | 2022 |
| Kirchner Soft Deutschland GmbH | Information & communication | 2006 |
| Kirem AS | Professional & scientific | 2006 |
| Kirjo AS | Professional & scientific | 2023 |
| Kirk Holding AS | | 2021 |
| Kirk Invest AS | | 2022 |
| Kirke.Gata 19 AS | Real estate | 2023 |
| Kirkeby & Sander Invest AS | Real estate | 2001 |
| Kirkeby Andelslandbruk SA | Agriculture & fishing | 2011 |
| Kirkeby Matsenter Ans | | 1990 |
| Kirkebyveien 1 AS | Real estate | 2025 |
| Kirkedata AS | Information & communication | 2011 |
| Kirkegata 18 AS | Real estate | 2006 |
| Kirkegata 19 AS | Real estate | 2017 |
| Kirkegata 20 Oslo AS | Real estate | 2022 |
| Kirkegata 23-25 Drift AS | Real estate | 2012 |