| Innovar Engineering AS | Professional & scientific | 2000 |
| Innovar Solutions AS | Professional & scientific | 2005 |
| Integra Leasing AS | Transport & logistics | 1992 |
| Intellistream AS | Information & communication | 2023 |
| Intrastrat AS | | 2013 |
| Inveho AS | Wholesale & retail | 2022 |
| Invente Engineering AS | Professional & scientific | 2014 |
| Invest Holding 9 AS | | 2022 |
| Invest Management AS | Real estate | 2007 |
| Investeringen AS | Agriculture & fishing | 2019 |
| Itp Aero Norway AS | | 2025 |
| J.E. Gulbrandsen Pengebinge AS | Real estate | 2012 |
| J.S. Consult AS | Professional & scientific | 2005 |
| Jace Precision Engineering Limited | Professional & scientific | 2019 |
| Jacom Eiendom AS | Real estate | 2012 |
| Jarl Energy AS | Professional & scientific | 2016 |
| Jarle Fossan Holding AS | Manufacturing | 2010 |
| Jasec Holding AS | | 2025 |
| JB Dottir AS | Professional & scientific | 2025 |
| JCB Invest Holding AS | Professional & scientific | 2021 |
| JCM Holding AS | Financial services | 2017 |
| Jeeydee AS | Wholesale & retail | 2025 |
| Jet Set Da | Arts & recreation | 2003 |
| Jir Holding AS | Construction | 2018 |
| JL Offshore AS | Wholesale & retail | 2000 |
| JM Solutions AS | Transport & logistics | 2019 |
| Joa Jordbær AS | Agriculture & fishing | 2024 |
| Joa Melk Da | Agriculture & fishing | 2014 |
| JOHN CRANE NORGE Norsk avdeling av utenlandsk foretak NUF | Wholesale & retail | 1996 |
| Jore Eiendom AS | Real estate | 2019 |
| Joreid AS | Real estate | 2014 |
| Jorit AS | Wholesale & retail | 2019 |
| Jsts Invest AS | Professional & scientific | 2021 |
| JT Supply AS | Wholesale & retail | 2022 |
| Jåsund Utviklingsselskap AS | Real estate | 2005 |
| Jåsundbakken FB20 AS | Real estate | 2025 |
| Jæren Storbil Holding AS | Other services | 2007 |
| Jæren Storbil Senter AS | Other services | 2003 |
| Jæren Varmepumpeservice AS | Construction | 2023 |
| Jærpukk AS | Mining & quarrying | 2021 |
| K Holding AS | Financial services | 2005 |
| K Kildal AS | | 2026 |
| K Sola Maskin AS | Construction | 2001 |
| K. Lund Offshore AS | Manufacturing | 2014 |
| K. Volden Holding AS | Construction | 2023 |
| Kaju Consult AS | Administrative & support | 2006 |
| Kaktus Càfe & Bar AS | Hospitality | 2022 |
| Kalberg Næringsutvikling AS | Professional & scientific | 2021 |
| Karl Jakobsen Holding AS | Construction | 2009 |
| Karme AS | Professional & scientific | 2005 |
| Kasibra AS | | 2019 |
| Kemi Eiendom AS | Real estate | 2026 |
| Keynoor Da | Information & communication | 2024 |
| Kgil Holding AS | | 2025 |
| Kielland AS | Wholesale & retail | 2002 |
| Kineh AS | Financial services | 2014 |
| Kjellesvik Invest AS | | 2021 |
| Kleppes Mikrobakeri AS | Manufacturing | 2023 |
| Klientregnskap Sandnes AS | Professional & scientific | 2010 |
| Klinikk Meraki AS | Health & social care | 2018 |
| Klinikk Solvang AS | Health & social care | 2025 |
| KLL Investering AS | | 2022 |
| Kmfj Holding AS | | 2020 |
| KNM Hydraulikk AS | Administrative & support | 2008 |
| KNM Hydraulikk Holding AS | Administrative & support | 2023 |
| Knoph VVS & Gassteknikk AS | Construction | 2002 |
| Kolcon Nuf | Administrative & support | 2003 |
| Kolnes Invest AS | Real estate | 2009 |
| Kolnesstranden Gård AS | Health & social care | 2025 |
| Kolnestunet Eiendom AS | Real estate | 2011 |
| Kolos Lifting & Inspection AS | Manufacturing | 2014 |
| Kompakt AS | Construction | 2015 |
| Konsept Graphics Bureau AS | Arts & recreation | 2015 |
| Kopren AS | | 2023 |
| Kornberget Barnehage SA | Education | 1993 |
| Kramer Holding AS | Real estate | 2015 |
| Kranbygget AS | Real estate | 2016 |
| Krimero Holding AS | | 2020 |
| Kristenbergarmen AS | Real estate | 2026 |
| KSK Holding AS | Manufacturing | 2017 |
| KSK Maskinservice AS | Manufacturing | 2017 |
| Kutterveien 2 AS | Wholesale & retail | 2005 |
| Køfteverket AS | Hospitality | 2026 |
| Kølbæk Holding AS | | 2023 |
| La Frisør AS | Other services | 2025 |
| Lacrima Invest AS | | 2021 |
| Lahoud Holding AS | | 2022 |
| Landstad Maskin AS | Construction | 2017 |
| Latinum AS | | 2022 |
| LCB Invest AS | | 2005 |
| Leask Holding AS | Wholesale & retail | 2017 |
| Ledaalsgata 4 AS | Real estate | 2020 |
| Lege Eirik Skadberg AS | Health & social care | 2019 |
| Leketøyboksen AS | Wholesale & retail | 2018 |
| Leonardo UK Ltd Nuf | Manufacturing | 2016 |
| Lerang Asfalt AS | Construction | 1997 |
| Lerang Holding AS | Wholesale & retail | 2021 |
| Lesi Invest AS | | 2023 |
| Lhag AS | | 2023 |
| Lillesand Holding AS | Information & communication | 2005 |