| Carflip AS | Wholesale & retail | 2022 |
| Cazi Partners AS | Real estate | 2006 |
| CBT Næring AS | Real estate | 2018 |
| Celvita AS | Real estate | 2016 |
| Champagneinwest AS | Wholesale & retail | 2014 |
| Chin Khar AS | Wholesale & retail | 2024 |
| Chpasvd AS | Professional & scientific | 2024 |
| Chrima AS | | 2005 |
| Cloudsec AS | Professional & scientific | 2026 |
| Co in AS | Real estate | 2006 |
| Co in Utvikling AS | Real estate | 2016 |
| Codept AS | Information & communication | 2018 |
| Codigo Consulting AS | Professional & scientific | 2007 |
| Colibri Invest AS | Real estate | 2004 |
| Condia AS | Wholesale & retail | 2005 |
| Coop Bjerke Eiendom AS | Real estate | 2002 |
| Coop Hurdal Eiendom AS | Real estate | 2018 |
| Coop Jessheim Eiendom AS | Real estate | 2004 |
| Coop Kolbotnveien 33 Eiendom AS | Real estate | 2020 |
| Coop Kongsvinger Eiendom AS | Real estate | 2026 |
| Coop Nes I Ådal Eiendom AS | Real estate | 2019 |
| Coop Neskollen Eiendom AS | Real estate | 2003 |
| Coop Rakkestad Eiendom AS | Real estate | 1975 |
| Coop Romsåsveien 6 Eiendom AS | Real estate | 2004 |
| Coop Skjettentoppen Eiendom AS | Real estate | 2023 |
| Coop Skøyenåsen Eiendom AS | Real estate | 2012 |
| Coop Stovner Eiendom AS | Real estate | 2024 |
| Coop Valdres Eiendom AS | Real estate | 2017 |
| Coop Ørebekk Eiendom AS | Real estate | 2014 |
| Coop Øst Forvaltning AS | Real estate | 2018 |
| Coop Øst SA | Wholesale & retail | 1970 |
| Crepe De La Crepe AS | Wholesale & retail | 2021 |
| Crocodylus AS | Professional & scientific | 2020 |
| Cryno AS | Wholesale & retail | 2023 |
| Dalgården AS | Wholesale & retail | 1987 |
| Dam Auto AS | Wholesale & retail | 2024 |
| Damveien Bolig AS | Real estate | 2012 |
| Dan Ottesen Holding AS | | 2024 |
| Danesh Bil Og Eiendom AS | Real estate | 1994 |
| Dentalvarehuset AS | Wholesale & retail | 2006 |
| Dentalvarehuset Holding AS | Wholesale & retail | 2013 |
| Det Lille Velværehuset AS | Other services | 2014 |
| DG Bygg AS | Construction | 2015 |
| Digitalhjelp AS | Information & communication | 2017 |
| Digitalhjelp Holding AS | Information & communication | 2023 |
| Disrupt IT AS | Professional & scientific | 2020 |
| Domin Bygg Entreprenør AS | Construction | 2020 |
| Driving Trafikkskole Oppegård AS | Education | 2015 |
| Drivstoffkortet AS | Wholesale & retail | 2016 |
| Drugis Invest AS | | 2022 |
| Dry Bone Holding AS | | 2022 |
| Duunibet Holding AS | | 2025 |
| Dynamisk Fot AS | Health & social care | 2022 |
| Dyrebutikken Kolbotn AS | Wholesale & retail | 2008 |
| Dyrefjell Vann Og Avløp Drift SA | Water & waste | 2020 |
| E Berglie AS | | 2022 |
| E Berglie Holding AS | Wholesale & retail | 2022 |
| Easysun AS | Other services | 2024 |
| Ebcon AS | Professional & scientific | 2014 |
| Egron Transport AS | Transport & logistics | 2018 |
| Eisold Bygg Og Vedlikehold AS | Construction | 2010 |
| Eivind Sundt Holding AS | Financial services | 2005 |
| El & Kraftmontasje AS | Construction | 2012 |
| El Auto AS | Wholesale & retail | 2021 |
| Electra Invest AS | Real estate | 2018 |
| Elidan Eiendom AS | Real estate | 2015 |
| Elinb Holding AS | | 2023 |
| Elisabeth Skolt Nevland AS | Financial services | 2006 |
| Elveløkka AS | Real estate | 2012 |
| Emja Holding AS | Health & social care | 2021 |
| Eml Holdings AS | | 2026 |
| Emnor AS | Professional & scientific | 2026 |
| Emvix AS | Professional & scientific | 2026 |
| Energy Development AS | Professional & scientific | 1975 |
| Energy Investors AS | Financial services | 2006 |
| Entreprenør Axl AS | Construction | 2021 |
| Eom Rådgivning AS | Professional & scientific | 2006 |
| Epsilon Eridani AS | | 2025 |
| Erik Sandboe Holding AS | Financial services | 2014 |
| Espen Michael Larod Investment Ltd Nuf | Real estate | 2006 |
| Etneb AS | Professional & scientific | 2025 |
| Eva Sundt Holding AS | Real estate | 2005 |
| Everlearn AS | Information & communication | 2026 |
| Evn Holding AS | | 2023 |
| Excedo AS | | 2019 |
| Expon AS | Professional & scientific | 1997 |
| Expon Eiendom AS | Real estate | 2009 |
| Expon Holding AS | Wholesale & retail | 2008 |
| Exentricity Unlimited ANS | | 1988 |
| Face & Body AS | Health & social care | 2009 |
| Fami Holding AS | Real estate | 1998 |
| Fannefjord Eiendom AS | Real estate | 2017 |
| Farner AS | Real estate | 2015 |
| Fast on AS | Other services | 2017 |
| Fast on Kolboten AS | Other services | 2024 |
| Fedje Finans AS | Real estate | 2011 |
| Fellini Frisør AS | Other services | 1999 |
| Finance Resources TW AS | Professional & scientific | 2009 |
| Fire Without Smoke Nordic AS | Information & communication | 2018 |
| Fiskehuset AS | Wholesale & retail | 2020 |