| Istrate Holding AS | | 2023 |
| IT Partner AS | Information & communication | 2003 |
| Ivalde AS | Professional & scientific | 2013 |
| J Varhaug AS | Real estate | 1991 |
| J Varhaug Invest AS | | 2002 |
| Jah Eiendom Og Holding AS | | 2024 |
| Jam Holding AS | Wholesale & retail | 2013 |
| Jemima Blue AS | Professional & scientific | 2025 |
| Jens Peter Koefoed AS | Professional & scientific | 2016 |
| Jewel S AS | | 2023 |
| Jimra AS | | 2024 |
| JKL Investering AS | | 2026 |
| JM Services AS | Administrative & support | 2020 |
| JMB Holding AS | Financial services | 2005 |
| Jæder AS | Manufacturing | 1983 |
| Jædergruppen AS | Manufacturing | 2024 |
| Jær Engros AS | Wholesale & retail | 2025 |
| K-Nut Invest AS | Financial services | 2021 |
| K.Sinnes Holding AS | | 2025 |
| Karl Helland Invest AS | Real estate | 2019 |
| Kesj Invest AS | | 2026 |
| KGL Diopter AS | Professional & scientific | 2013 |
| Kilhavn Invest AS | | 2006 |
| Kim Ep Holding AS | Professional & scientific | 2023 |
| Kjell's Octopus Invest AS | Financial services | 2008 |
| Kjemad AS | Professional & scientific | 2014 |
| Kjetil Teige AS | Wholesale & retail | 2005 |
| Kjøkkendrift No 1 Ålgård AS | Wholesale & retail | 2014 |
| Klar Takst Rogaland AS | Professional & scientific | 2025 |
| Klar Trafikkskole AS | Education | 2023 |
| Klar-Holding AS | | 2025 |
| Kluge Elektro AS | Construction | 2006 |
| Kndsn Holding AS | | 2022 |
| Ko Bygg AS | Construction | 2026 |
| Kon Tec Holding AS | | 2024 |
| Kongeparken Camping AS | Hospitality | 1985 |
| Kongeparken Drift AS | Administrative & support | 2022 |
| Kongsgata 10 Eiendom AS | Real estate | 2019 |
| Kongsgata 17 Eiendom AS | Real estate | 1996 |
| Kongsgata 2 Og 4 AS | Real estate | 1993 |
| Kongsgata 20 Eiendom AS | Real estate | 1997 |
| Kongsgata 3 AS | Real estate | 2024 |
| Kongsgata 5 Og 7 AS | Real estate | 2024 |
| Kongsgata 9 Og 11 AS | Real estate | 2024 |
| Kongsgata Eiendom AS | Real estate | 2022 |
| Kongsgata Eiendom Drift AS | Real estate | 2022 |
| Kosmos Solar AS | Wholesale & retail | 2021 |
| Kraft-Bygg Entreprenør AS | Construction | 2026 |
| Krambugata Eiendom AS | Real estate | 2009 |
| Kreativ Styling AS | Professional & scientific | 2025 |
| Kreativbetong AS | Construction | 2022 |
| Kristian Salte Invest AS | Real estate | 2022 |
| Krossen Leker AS | Wholesale & retail | 1991 |
| Kvednaveien 4 AS | Real estate | 2023 |
| Kvint Eiendom AS | Real estate | 1986 |
| Kvint Fasade AS | Wholesale & retail | 2018 |
| L2MD Tesla Holding AS | | 2025 |
| La Bastide 1624 AS | | 2022 |
| La Group AS | Professional & scientific | 2006 |
| Lachris AS | Health & social care | 2005 |
| Lagerrommet AS | Real estate | 2023 |
| Langgata 62 AS | Real estate | 2023 |
| Laro Consult AS | Information & communication | 2025 |
| Larton Holding AS | | 2021 |
| Larzons AS | Wholesale & retail | 2024 |
| Lauvstad Bygg AS | Construction | 2021 |
| Lauvstad Kapital AS | | 2025 |
| LBB Holding AS | | 2020 |
| Leilighetshotellet AS | Hospitality | 2014 |
| Leka Bygg AS | Construction | 2024 |
| Leka Holding AS | Construction | 2022 |
| Lima AS | | 1996 |
| Lima Eiendom AS | Real estate | 1990 |
| Lima Næring AS | Hospitality | 2014 |
| Lima Regnskap AS | Professional & scientific | 2017 |
| Lima Rør AS | Construction | 1999 |
| Lingvio AS | Professional & scientific | 2026 |
| Litano AS | Professional & scientific | 2020 |
| Lokling Consult AS | Professional & scientific | 2023 |
| Lokling Invest AS | | 2023 |
| Lomcon AS | Information & communication | 2022 |
| Lonestarklepp AS | Hospitality | 2023 |
| LT Aase AS | Real estate | 2005 |
| LT Aase Eiendomsutvikling AS | Real estate | 2018 |
| LTS Holding AS | Professional & scientific | 2005 |
| Lund Gruppen Arrangement AS | Arts & recreation | 2007 |
| Lund Gruppen Holding AS | Arts & recreation | 2011 |
| Lunds Tivoli AS | Arts & recreation | 1984 |
| Løvdahl Invest AS | Manufacturing | 2010 |
| M & W Team AS | Construction | 2013 |
| M Lyse AS | | 2021 |
| M Øgreid AS | Real estate | 1984 |
| M&R Vedlikehold AS | Administrative & support | 2025 |
| M-Gear AS | Professional & scientific | 2025 |
| Macs Holding AS | Construction | 2025 |
| Macs Investering AS | Real estate | 2019 |
| Madland Eiendom AS | Real estate | 2001 |
| Magneten Næring AS | Real estate | 2015 |
| Magneten Sport AS | Financial services | 2005 |
| Malli Holding AS | Construction | 2016 |