| Calpa Talent AS | Administrative & support | 2024 |
| Cals AS | | 2019 |
| Calt AS | | 2020 |
| Caltec AS | Wholesale & retail | 1999 |
| Calu AS | Professional & scientific | 2008 |
| Calude Group AS | Education | 2021 |
| Calvedo AS | | 2005 |
| Calvet Holding AS | Information & communication | 2024 |
| Calvet IT AS | Information & communication | 2024 |
| Calvia Eiendom Invest AS | Real estate | 2026 |
| Calvia Group AS | | 2025 |
| Calvin AS | Real estate | 2005 |
| Calymene AS | Real estate | 2020 |
| Calzoni SRL | Professional & scientific | 2005 |
| Cam Invest AS | Financial services | 2005 |
| Cama AS | Real estate | 1983 |
| Cama Invest AS | Financial services | 2005 |
| Cama Kompetanse Da | Education | 2003 |
| Camaca AS | | 2004 |
| Camaco AS | Real estate | 2003 |
| Camani AS | Financial services | 2016 |
| Camaras .S. Mat Da | Wholesale & retail | 2009 |
| Camasi AS | | 2021 |
| Camb Entreprenør AS | | 2023 |
| Cambiamento AS | | 2026 |
| Cambie AS | | 2005 |
| Cambo Invest AS | Real estate | 2021 |
| Cambridge Holding AS | Real estate | 2001 |
| Camcola AS | | 2024 |
| Camea AS | Information & communication | 2024 |
| Camecc AS | Transport & logistics | 1976 |
| Camelback Eiendom AS | Financial services | 2001 |
| Camelback Holding AS | Real estate | 2004 |
| Camelia AS | Wholesale & retail | 1996 |
| Camelin AS | Real estate | 2023 |
| Cameon Ans | | 1996 |
| Cameralla AS | Professional & scientific | 2018 |
| Cameralla Norge AS | Education | 2016 |
| Cameralla Photo AS | Education | 2020 |
| Camfil Norge AS | Wholesale & retail | 1963 |
| Camia Holding AS | | 2026 |
| Camian AS | Real estate | 2021 |
| Camic Invest AS | Financial services | 2009 |
| Camilla Collets Vei 10 Oslo AS | | 2024 |
| Camilla Colletts Vei 11 AS | Real estate | 2017 |
| Camilla Colletts Vei 17 AS | Households | 1922 |
| Camilla Colletts Vei 3 AS | Households | 1965 |
| Camilla Dagligvare AS | Wholesale & retail | 2026 |
| Camilla Pihl Fashion Group AS | Wholesale & retail | 2018 |
| Camilla Rostrup Logoped AS | Health & social care | 2023 |
| Camilla Ryste AS | | 2022 |
| Camilla Sem Invest AS | Financial services | 2005 |
| Camilla Stadheim Hellum AS | Health & social care | 2021 |
| Camilla Stenberg AS | Professional & scientific | 2015 |
| Camilla Stene Invest AS | Wholesale & retail | 2014 |
| Camilla Tørring Møbeltapetsering AS | Other services | 2018 |
| Camilla Wangsmo AS | Other services | 2006 |
| Camillaink Holding AS | Other services | 2024 |
| Camillapihl.No AS | Arts & recreation | 2018 |
| Camille Invest AS | Real estate | 2006 |
| Camillo AS | Real estate | 2020 |
| Camillo Eitzen & Co AS | Transport & logistics | 2012 |
| Camion AS | | 2021 |
| Camis Forum | Construction | 2004 |
| Camkam Holding AS | | 2019 |
| Camm AS | Real estate | 2007 |
| Camo Invest AS | Real estate | 2021 |
| Camocim Holding AS | Financial services | 2012 |
| Camogli AS | Financial services | 2016 |
| Camp Myrvold AS | Education | 2016 |
| Camp X AS | Administrative & support | 2015 |
| Campa AS | Professional & scientific | 2023 |
| Campanule AS | Real estate | 2021 |
| Campanyon AS | Administrative & support | 2021 |
| Campervan Adventures AS | Administrative & support | 2026 |
| Campfire AS | Professional & scientific | 2005 |
| Campfire Kansas | Arts & recreation | 2008 |
| Camping Comfort | Administrative & support | 2017 |
| Camping Investco AS | | 2022 |
| Campingkompaniet Da | Arts & recreation | 2020 |
| CAMPINGTILBEHØR4U AS | Wholesale & retail | 2013 |
| Campino Sinsen AS | Hospitality | 2019 |
| Campr AS | Administrative & support | 2021 |
| Campus Gjøvik AS | Real estate | 2018 |
| Campus Gymir AS | Information & communication | 2025 |
| Campus Kristiania Eiendom AS | Real estate | 2003 |
| Campus Kristiansund 1 AS | Real estate | 2019 |
| Campus Kristiansund 2 AS | Real estate | 2022 |
| Campus Kristiansund 3 AS | Real estate | 2022 |
| Campus Kristiansund Drift AS | Real estate | 2021 |
| Campus Living AS | Real estate | 2021 |
| Campus Rena AS | Real estate | 2021 |
| Campus Sinsen AS | Real estate | 2018 |
| Campus Sluppen AS | Real estate | 2016 |
| Campus Ullevål AS | Real estate | 2016 |
| Campus Ullevål Drift AS | Real estate | 2024 |
| Campus Voll AS | Real estate | 2021 |
| Camska Invest AS | | 2024 |
| Camtech AS | Wholesale & retail | 2021 |
| Camu AS | | 2023 |