| CG Holdings AS | | 2015 |
| CG Jensen | Construction | 2011 |
| CG Norway AS | Wholesale & retail | 2020 |
| Cga Invest AS | | 2021 |
| CGC Holding AS | Professional & scientific | 2006 |
| Cge Aktivum AS | | 2013 |
| CGG Invest AS | Real estate | 2005 |
| CGG Services (Norway) AS | Professional & scientific | 1998 |
| Cgh-Holding AS | | 2026 |
| Cghmn Invest AS | Professional & scientific | 2017 |
| Cgi Norge AS | Information & communication | 1977 |
| Cgo AS | | 2024 |
| Cgreatives AS | Professional & scientific | 2023 |
| CGS Holding AS | Transport & logistics | 2003 |
| CGS Invest AS | Wholesale & retail | 2000 |
| Cgth AS | Wholesale & retail | 2022 |
| CGW Holding AS | | 2018 |
| CH Entreprenør AS | Real estate | 2019 |
| CH Flow 2 AS | Financial services | 2025 |
| CH Flow AS | | 2022 |
| CH Fritid AS | Wholesale & retail | 2022 |
| CH Granås AS | | 2023 |
| CH Holding AS | Real estate | 2005 |
| CH Langberg AS | | 2022 |
| CH Prosjekt AS | Construction | 1998 |
| Cha Holding & Invest AS | | 2024 |
| Chabina AS | Financial services | 2008 |
| Chacama AS | Financial services | 1998 |
| Chacco Ans | Wholesale & retail | 1988 |
| Chacha AS | Hospitality | 2012 |
| Chaco AS | Real estate | 2009 |
| Chadha Holding AS | | 2022 |
| Chaek AS | | 2021 |
| Chahaa AS | | 2023 |
| Chahals AS | Hospitality | 2013 |
| Chai Thali AS | Hospitality | 2022 |
| Chair AS | Hospitality | 2018 |
| Chair Invest AS | Wholesale & retail | 2021 |
| Chairborne AS | Professional & scientific | 2000 |
| Chairman Design AS | Professional & scientific | 2017 |
| Chairman Group AS | Manufacturing | 2015 |
| Chairos AS | Information & communication | 2009 |
| Chairup AS | Information & communication | 2025 |
| Chaiwala Holding AS | | 2024 |
| Chakra Agenturer AS | Wholesale & retail | 2018 |
| Chall AS | Information & communication | 2021 |
| Chall Mip AS | | 2021 |
| Challenger AS | Professional & scientific | 2019 |
| Chamar AS | Financial services | 2003 |
| Chamar Shipping AS | Financial services | 2013 |
| Chambers AS | Professional & scientific | 2000 |
| Chamela Capital AS | | 2007 |
| Chamonica AS | | 2006 |
| Chamonix Adventures AS | Administrative & support | 2017 |
| Chamorel Astrup Holding AS | | 2026 |
| Champ AS | | 2024 |
| Champ Capital AS | Real estate | 2024 |
| Champ Management AS | Real estate | 2025 |
| Champ Real Estate AS | Real estate | 2024 |
| Champagnepikene Da | Wholesale & retail | 2002 |
| Champagneria Holding AS | Wholesale & retail | 2012 |
| Champagneria Import AS | Wholesale & retail | 2015 |
| Champions and Dreams AS | | 2015 |
| Champs Group AS | Professional & scientific | 2002 |
| Chanac AS | Professional & scientific | 2025 |
| Chancer Holding AS | | 2022 |
| Chandi AS | Wholesale & retail | 2024 |
| Chanel Norway AS | Wholesale & retail | 2015 |
| Chanette I AS | | 2026 |
| Chanette II AS | | 2026 |
| Changa AS | | 2023 |
| Change Consultants Group AS | Professional & scientific | 2023 |
| Change Hill AS | | 2012 |
| Change of Mind AS | Professional & scientific | 2012 |
| Change Oslo City AS | Wholesale & retail | 2007 |
| Change Productions AS | Information & communication | 2020 |
| Change Works AS | Information & communication | 2026 |
| Changelabs AS | Professional & scientific | 2018 |
| Changemakers AS | Education | 2019 |
| Changetech AS | Information & communication | 2006 |
| Channelb AS | Information & communication | 2019 |
| Chant AS | Professional & scientific | 2020 |
| Chap Holding AS | | 2022 |
| Chapal AS | Financial services | 2004 |
| Chapeau AS | | 2018 |
| Chapel Hill Invest AS | Real estate | 2014 |
| Chaplins Vask & Rens Da | Manufacturing | 2003 |
| Chapmore Venture AS | | 2007 |
| Chapter 7 Capital AS | | 2018 |
| Chapterx Marketing Da | Professional & scientific | 2025 |
| Charanda AS | Professional & scientific | 2026 |
| Charente AS | Real estate | 2007 |
| Charge AS | Professional & scientific | 2017 |
| Charge Invest AS | | 2023 |
| Charge Nordic AS | Professional & scientific | 2024 |
| Charge Plus AS | Information & communication | 2026 |
| Chargeinvest AS | | 2023 |
| Charging Bull AS | | 2025 |
| Charis AS | | 2006 |
| Charity Group AS | Information & communication | 2021 |