| KLP Schweigaardsgate 23 AS | Real estate | 2011 |
| KLP Selma Ellefsens Vei 8 AS | Real estate | 2012 |
| KLP Skadeforsikring AS | Financial services | 1994 |
| KLP Snipetjernveien 3 Og 9 AS | Real estate | 2021 |
| KLP Stavanger Airport Hotel AS | Real estate | 2008 |
| KLP Stormåsan 30-34 AS | Real estate | 2017 |
| KLP Stormåsan 42 AS | Real estate | 2020 |
| KLP Stortorvet 7 AS | Real estate | 2007 |
| KLP Stortorvet 7 Drift AS | Real estate | 2023 |
| KLP Tjuvholmen Allé 11 AS | Real estate | 2003 |
| KLP Tjuvholmen Allé 16 AS | Real estate | 2005 |
| KLP Torvuttaket 73 Og 75 AS | Real estate | 2020 |
| KLP Toveien 19 Og 21 AS | Real estate | 2009 |
| KLP Universitetsgata 8 AS | Real estate | 1971 |
| KLS Eiendom AS | Real estate | 2018 |
| KLS Holding AS | Information & communication | 2016 |
| KLS Konsulent AS | Information & communication | 2020 |
| Kltp Datter AS | Financial services | 2017 |
| Klub Bulk AS | Information & communication | 2018 |
| Klub Bulk II AS | | 2025 |
| KLUBB1 AS | Professional & scientific | 2023 |
| Klubben I Røverstaden AS | Arts & recreation | 2017 |
| Klubbkoppen AS | Wholesale & retail | 2020 |
| Klubbnettside AS | Information & communication | 2020 |
| Klungo Invest AS | | 2022 |
| Klvr AS | Professional & scientific | 2021 |
| KLX AS | Wholesale & retail | 2023 |
| Klynge AS | Information & communication | 2017 |
| Klypestølen AS | | 2021 |
| Klyppemyr Invest AS | | 2023 |
| Klyv Therapeutics AS | Professional & scientific | 2023 |
| Klæboe Consulting AS | Professional & scientific | 2015 |
| Kløfta AS | Real estate | 2021 |
| Kløfta Logistikk AS | Real estate | 1960 |
| Kløfta Logistikkinvest AS | Real estate | 2019 |
| Kløftbrua Kraftverk AS | Energy | 2023 |
| Kløfterhagen Barnehage AS | Education | 2021 |
| Kløkt AS | Real estate | 2018 |
| Kløkt Selection AS | Administrative & support | 2021 |
| Kløktig AS | Information & communication | 2019 |
| Kløktig Invest AS | Information & communication | 2019 |
| Kløvertoppen AS | Real estate | 2019 |
| Kløvertunet Bolig AS | Real estate | 2022 |
| Kløvertunet G Hjemmel AS | | 2022 |
| Kløvningen AS | Real estate | 2005 |
| Kløvr AS | Information & communication | 2024 |
| KM Byggverk AS | Construction | 2023 |
| KM Capital AS | Financial services | 2016 |
| KM Dagligvarehandel AS | Wholesale & retail | 2019 |
| KM Elektro AS | Construction | 2012 |
| KM Forvaltning AS | Financial services | 2004 |
| KM New Energy AS | Administrative & support | 2020 |
| KM Nordic Invest AS | Professional & scientific | 2012 |
| KM Real Estate AS | Real estate | 1997 |
| KM Steel Service Norge AS | Transport & logistics | 2018 |
| KM Studio Norway AS | Information & communication | 2017 |
| Km-Invest AS | Information & communication | 2018 |
| KM86 Holding AS | | 2025 |
| Kma Holding AS | Financial services | 2014 |
| Kman AS | | 2023 |
| Kmandius AS | Professional & scientific | 2007 |
| KMB Entreprenør AS | Construction | 2016 |
| KMD AS | | 2021 |
| Kmdons Invest AS | | 2024 |
| Kmea AS | Wholesale & retail | 2022 |
| KMF Invest AS | Financial services | 2014 |
| KMH5 AS | Real estate | 2019 |
| Kmi Eiendom AS | Real estate | 2023 |
| KMK Pro Da | Wholesale & retail | 2008 |
| KML Invest AS | Real estate | 2018 |
| Kmmn Invest II AS | | 2018 |
| KMN Invest AS | Financial services | 2016 |
| Kmo Invest AS | | 2021 |
| KMR AS | Wholesale & retail | 2006 |
| KMR Invest AS | Real estate | 2015 |
| KMS Design AS | Professional & scientific | 2022 |
| KMS Gruppen AS | Other services | 2021 |
| KMT AS | | 2023 |
| KMT Invest AS | Real estate | 1993 |
| KN Adventures AS | Health & social care | 2021 |
| KN Prosjekt AS | Financial services | 2006 |
| KN Trading AS | Construction | 2017 |
| Knab Invest AS | | 2021 |
| Knaggen Holding AS | Real estate | 2017 |
| Knakk AS | Information & communication | 2018 |
| Knall Media AS | Information & communication | 2024 |
| Knallbra AS | Wholesale & retail | 2014 |
| Knapkøyen Maskin AS | Real estate | 1998 |
| Knapp AG | Construction | 2010 |
| Knappetrykker AS | Information & communication | 2024 |
| Knappskog Holding AS | Real estate | 2011 |
| Knas Holding AS | Administrative & support | 2005 |
| Knasp AS | Real estate | 2019 |
| Knatten Prosjekt AS | Professional & scientific | 2013 |
| Knauf Insulation AS | Wholesale & retail | 2008 |
| Knausen AS | Professional & scientific | 1997 |
| Knausgård Ventures AS | Professional & scientific | 1997 |
| KNC Hotel Management AS | Hospitality | 2016 |
| KND Collective Da | Arts & recreation | 2023 |
| Knead AS | Administrative & support | 2020 |