| Klepp 1/98 AS | Wholesale & retail | 2014 |
| Klepp Antirust AS | Other services | 2014 |
| Klepp Auto Bilverksted AS | Other services | 1993 |
| Klepp Bilinvest AS | Wholesale & retail | 2024 |
| Klepp Bilteknikk AS | Other services | 2009 |
| Klepp Biogass AS | Energy | 2010 |
| Klepp Bistro AS | Hospitality | 2011 |
| Klepp Blomster Da | Wholesale & retail | 2008 |
| Klepp Elektro AS | Real estate | 1969 |
| Klepp Energi AS | Information & communication | 2020 |
| Klepp Energi Holding AS | Energy | 2020 |
| Klepp Foto AS | Wholesale & retail | 2017 |
| Klepp Gokartutleie AS | Administrative & support | 2026 |
| Klepp Invest AS | Financial services | 1985 |
| Klepp Legesenter AS | Health & social care | 2016 |
| Klepp Legesenter Eigedom AS | Real estate | 2009 |
| Klepp Mek AS | Manufacturing | 1993 |
| Klepp Spes Invest Holding AS | Transport & logistics | 2019 |
| Klepp Spesialtransport Ans | Administrative & support | 1997 |
| Klepp Spesialtransport AS | Transport & logistics | 1998 |
| Klepp Trafikkskole AS | Education | 2005 |
| Kleppconsult AS | Professional & scientific | 2012 |
| Kleppe Og Storhaug Maskin AS | Wholesale & retail | 2011 |
| Kleppestemmen Fus Barnehage AS | Education | 2018 |
| Klingsheim Maskin AS | Construction | 2006 |
| Klinikk Kleppe AS | Health & social care | 2023 |
| Klungtveit Investering AS | | 2007 |
| KM Oma Eiendom AS | Real estate | 2025 |
| KM Pollestad Holding AS | Real estate | 2021 |
| KMD Jæren AS | | 2026 |
| Knask AS | Agriculture & fishing | 2026 |
| KNM Eiendom AS | Real estate | 2024 |
| Krossen Legekontor AS | Health & social care | 1990 |
| Kryddergarden AS | Agriculture & fishing | 2023 |
| Kråkenes Invest AS | Financial services | 2012 |
| KT Bygg AS | Construction | 2008 |
| Ktus Invest AS | Other services | 2021 |
| Kulli Invest AS | Real estate | 2014 |
| Kvart Holding AS | | 2005 |
| Kverme Eiendom AS | Real estate | 2006 |
| Kydland Maskin AS | Construction | 2019 |
| Kyvik Auto AS | Wholesale & retail | 2022 |
| Kyvik Autoshine AS | Administrative & support | 2022 |
| Kyvik Forvaltning AS | Wholesale & retail | 2023 |
| Kyvik Gruppen AS | Wholesale & retail | 2022 |
| Kyvik Kapital AS | Real estate | 2022 |
| Kyvik Næring 1 a AS | Real estate | 2008 |
| Ladron Holding AS | | 2019 |
| Lagega Ans | Construction | 1988 |
| Lalo Holding AS | | 2026 |
| Lalt Holding AS | Construction | 2021 |
| Landbruken AS | Real estate | 2020 |
| Landlig AS | Real estate | 2017 |
| LCB Holding AS | Real estate | 2020 |
| Lckw Holding AS | | 2025 |
| Leif Invest AS | Financial services | 2005 |
| Lex Loci Holding AS | | 2025 |
| Lilleland AS | Construction | 2008 |
| Lindefjeld Holding AS | | 2023 |
| Livastøl Holding AS | | 2005 |
| LM Heli Holding AS | | 2021 |
| Loco Invest AS | Professional & scientific | 2005 |
| Lodo AS | Hospitality | 2021 |
| Lothe Enterprises AS | Professional & scientific | 2025 |
| Lothe Kapital AS | Professional & scientific | 2024 |
| Lothe Marketing AS | Professional & scientific | 2025 |
| LSH AS | Real estate | 2017 |
| LT Holding AS | Financial services | 2015 |
| Lund Utleiebolig AS | Real estate | 2002 |
| Lundewiik Invest AS | Professional & scientific | 2005 |
| Lunheim Holding AS | Manufacturing | 2015 |
| LVH Autoinvest AS | Wholesale & retail | 2018 |
| Lykkelig Holding AS | | 2021 |
| Lyngnesveien 34 AS | Construction | 2019 |
| Lyngstad AS | | 2021 |
| Lynlakk AS | Other services | 2018 |
| Lyse Invest AS | Real estate | 2008 |
| M Hove AS | Construction | 2024 |
| M&J Eksotisk AS | Wholesale & retail | 2015 |
| Ma Rusfri Trafikk Avd. Sør-Rogaland | Other services | 1933 |
| Maessen Holding AS | | 2024 |
| Malm Orstad Eiendomsselskap AS | Real estate | 1986 |
| Mamma Og Mini Da | Wholesale & retail | 2006 |
| Manke & Mortensen Design Da | Professional & scientific | 2000 |
| Maria Thorisdottir AS | Arts & recreation | 2025 |
| Marilyn Paula Therapy AS | Health & social care | 2021 |
| Marvenne AS | Professional & scientific | 2013 |
| Maskinhuset Klepp AS | Real estate | 2005 |
| Masvindi AS | Information & communication | 2009 |
| Masøy Invest AS | | 2012 |
| Matherials AS | Arts & recreation | 2024 |
| Meling & Soma Invest AS | Information & communication | 2022 |
| Metosim AS | Professional & scientific | 2015 |
| Miasolstråle Helsekost AS | Wholesale & retail | 2020 |
| Mlas Invest AS | | 2026 |
| Mo Graveservice AS | Construction | 2026 |
| Morå AS | Professional & scientific | 2015 |
| Motori AS | Wholesale & retail | 2017 |
| Motorspesialisten AS | Other services | 1991 |
| MT Management AS | Professional & scientific | 2011 |