| Content Marketing Norge AS | Education | 2014 |
| Contente AS | Real estate | 2021 |
| Contenti AS | Construction | 2022 |
| Contera AS | Wholesale & retail | 2004 |
| Contera Engros AS | Wholesale & retail | 2013 |
| Contiga AB | Wholesale & retail | 2005 |
| Contigo AS | Professional & scientific | 2012 |
| Continental Dekk Norge AS | Wholesale & retail | 1991 |
| Continental Eiendom AS | Real estate | 2005 |
| Continental Holding AS | Hospitality | 2020 |
| Continental Invest AS | | 2008 |
| Continental Operating Aer Sea Land KB | Real estate | 2011 |
| Continental Search Alliance AS | Professional & scientific | 2014 |
| Continents Gate AS | Professional & scientific | 2017 |
| Continium AS | Professional & scientific | 2022 |
| Continua AS | Professional & scientific | 2016 |
| Continuous Process Improvement AS | Professional & scientific | 1998 |
| Continuum AS | Professional & scientific | 2013 |
| Continuum Holding AS | Professional & scientific | 2013 |
| Continuum Strategy AS | Professional & scientific | 2024 |
| Contitude AS | Information & communication | 2016 |
| Contour Design Norge AS | Wholesale & retail | 2005 |
| Contra Management AS | Professional & scientific | 2005 |
| Contracting AS | Information & communication | 2019 |
| Contrast Group AS | Professional & scientific | 2019 |
| Contratum AS | Professional & scientific | 2001 |
| Control Consult AS | Administrative & support | 1991 |
| Control Design AS | Wholesale & retail | 1992 |
| Control Plus AS | Professional & scientific | 2009 |
| Controll AS | Information & communication | 2018 |
| Controlled Environment Food Fund I (Cef I) AS | | 2023 |
| Controverse Music AS | Information & communication | 2016 |
| Contér Holding AS | Professional & scientific | 2020 |
| Contér Services AS | Professional & scientific | 2019 |
| Convatec Norway AS | Wholesale & retail | 2008 |
| Convene Hospitality AS | Professional & scientific | 2014 |
| Conveni AS | Wholesale & retail | 2025 |
| Convenient Eiendom AS | Real estate | 2015 |
| Convenio AS | Professional & scientific | 2008 |
| Convent Capital AS | Professional & scientific | 2006 |
| Converge AS | Professional & scientific | 2021 |
| Converge Finance AS | Professional & scientific | 2022 |
| Convergint Norway AS | Construction | 2022 |
| Conversion Therapy Da | Arts & recreation | 2022 |
| Conversionista AS | Professional & scientific | 2017 |
| Convertelligence AS | Information & communication | 2021 |
| Convest AS | Financial services | 1990 |
| Convex Ans | Professional & scientific | 1999 |
| Convexa AS | | 2004 |
| Convexa Asymmetric AS | | 2021 |
| Convicción AS | Arts & recreation | 2025 |
| Convier AS | Information & communication | 2021 |
| Convitus AS | Information & communication | 2015 |
| Conzorto Holding AS | Professional & scientific | 2023 |
| Conzultation AS | Information & communication | 2020 |
| Cook Belacevic Haffner & Partners AS | Professional & scientific | 2024 |
| Cookie Holding AS | | 2020 |
| Cookiejar AS | | 2024 |
| Cool AS | Professional & scientific | 2023 |
| Cool Beers Company AS | Wholesale & retail | 2023 |
| Cool Beverage Company AS | Wholesale & retail | 1994 |
| Cool Beverage Holding AS | Wholesale & retail | 2023 |
| Cool Company Management AS | Transport & logistics | 2010 |
| Cool Company Norge AS | Administrative & support | 2015 |
| Cool Drinks Company AS | Wholesale & retail | 2023 |
| Cool Spirits Company AS | Wholesale & retail | 2023 |
| Cool Wine Company AS | Wholesale & retail | 2023 |
| Coolshop Da | Wholesale & retail | 2002 |
| Coolstore AS | Wholesale & retail | 2026 |
| Coolstuff AB Nuf | Wholesale & retail | 2010 |
| Coolteam AS | Construction | 2005 |
| Coolware AS | Wholesale & retail | 2005 |
| Cooly AS | Hospitality | 1996 |
| Coonor AS | Real estate | 2001 |
| Coop Eiendom Forvaltning AS | Real estate | 2004 |
| Coop Extra Hemsedal AS | | 2026 |
| Coop Extra Vardåsen AS | | 2026 |
| Coop Forum SA | Wholesale & retail | 1999 |
| Coop Innlandet Eiendom AS | Real estate | 2013 |
| Coop Marked SA | Professional & scientific | 1998 |
| Coop Mega SA | Wholesale & retail | 1998 |
| Coop Mega Vinderen AS | Wholesale & retail | 2026 |
| Coop Norge Eiendom AS | Real estate | 2005 |
| Coop Norge Eiendom Holding AS | | 2025 |
| Coop Norge Finans AS | Financial services | 2015 |
| Coop Norge Industri AS | Manufacturing | 2000 |
| Coop Norge Langhus Eiendom AS | Real estate | 2017 |
| Coop Norge SA | Wholesale & retail | 1906 |
| Coop Norge Stavanger Eiendom AS | Real estate | 2005 |
| Coop Norge Stavanger Eiendom II AS | Real estate | 2017 |
| Coop Norge Strategisk Eiendom AS | | 2025 |
| Coop Norge Torgård Eiendom AS | Real estate | 2024 |
| Coop Norge Tromsø Eiendom AS | Real estate | 2011 |
| Coop Norge Trondheim Eiendom AS | Real estate | 2017 |
| Coop Obs! Bygg SA | Wholesale & retail | 1998 |
| Coop Obs! Hypermarked SA | Administrative & support | 1998 |
| Coop Oppdal Eiendom AS | Real estate | 2008 |
| Coop Prix Marsveien AS | Wholesale & retail | 2026 |
| Coop Prix Postgirobygget AS | Wholesale & retail | 2026 |
| Coop Prix SA | Administrative & support | 1998 |