| CC Vest Legesenter Da | Health & social care | 2014 |
| CC Vest Mat AS | Wholesale & retail | 1989 |
| CC Vest Medisinske Fotterapi AS | Health & social care | 2017 |
| CC Vest Stormarked AS | Real estate | 1989 |
| CC Vest Tannlegesenter AS | Health & social care | 2002 |
| Ccat AS | Manufacturing | 2006 |
| Ccbolig AS | Real estate | 2011 |
| CCC Invest AS | Financial services | 2013 |
| CCC Vekst AS | Financial services | 2016 |
| Ccfn Services AS | Professional & scientific | 2009 |
| Cchange AS | Professional & scientific | 2013 |
| CCM Hockey AS | Wholesale & retail | 1954 |
| CCP 5 Midtun AS | Real estate | 2021 |
| CCP AS | Real estate | 2006 |
| CCP Invest 1 AS | Real estate | 2008 |
| Ccpartner AS | Real estate | 2005 |
| CCS Finansiering AS | Public administration | 2022 |
| Ccsoft Holding AS | | 2024 |
| Cctk AS | | 2021 |
| Cctv AS | Information & communication | 2021 |
| CD Kapital AS | | 2020 |
| CDB Invest AS | Real estate | 2020 |
| CDC Norway AS | Wholesale & retail | 2020 |
| Cdds Norway AS | Professional & scientific | 2025 |
| CDG Stroederalton AB | Professional & scientific | 2006 |
| CDS AS | Financial services | 2005 |
| CDS Invest AS | | 2023 |
| Ce Consulting AS | Professional & scientific | 2022 |
| Ce Elektro AS | Construction | 2020 |
| Ce Ma Trans Ans | Transport & logistics | 1988 |
| Cean AS | Wholesale & retail | 2005 |
| Ceara Holding AS | Financial services | 2012 |
| Ceara Invest AS | Real estate | 2005 |
| Cebelika AS | Financial services | 2005 |
| Cebenotto AS | Real estate | 1988 |
| Cebico AS | Manufacturing | 2021 |
| Cebina AS | Manufacturing | 2021 |
| Ceboras Invest AS | | 2023 |
| Cebre AS | Health & social care | 2019 |
| Cebrian Holding AS | | 2026 |
| Cec Frisør AS | Other services | 2004 |
| Cec Holding & Invest AS | | 2024 |
| Cec Invest AS | Financial services | 2005 |
| Ceci Lie Holding AS | Transport & logistics | 2017 |
| Cecilie Dobloug Legetjenester AS | Health & social care | 2026 |
| Cecilie Kjeldsberg Invest AS | | 2020 |
| Cecilie Skog AS | Arts & recreation | 2004 |
| Cecilie Thoresens Vei 3 AS | Real estate | 2013 |
| Cecilie Thoresensvei 3 Holding AS | | 2026 |
| Ceclo AS | | 2026 |
| Cecon Contracting AS | Professional & scientific | 2010 |
| Cecon Shipping 1 AS | Professional & scientific | 2007 |
| Cecon Shipping 2 AS | Professional & scientific | 2007 |
| Cecon Shipping 3 AS | Professional & scientific | 2007 |
| Ceda Consult & Holding AS | Construction | 2020 |
| Ceda Invest AS | Financial services | 2005 |
| Cedan Invest AS | Financial services | 2005 |
| Cedar Car Carrier AS | Transport & logistics | 2014 |
| Cedar LNG Services Inc. Nuf | Professional & scientific | 2025 |
| Cedars AS | Wholesale & retail | 2025 |
| Cedartree AS | Financial services | 1988 |
| Cederbrand Invest AS | | 2020 |
| Cedolf AS | Health & social care | 2013 |
| Cedra Advokatfirma AS | Professional & scientific | 2025 |
| Cedra Group Norge AS | | 2025 |
| Cedra Holding Norge AS | | 2025 |
| Cedra Norge AS | Professional & scientific | 2025 |
| Cedra Norge Borealis AS | Professional & scientific | 2025 |
| Cedra Norge Kompetanse AS | Professional & scientific | 1976 |
| Cedra Norge Momentum AS | Professional & scientific | 2025 |
| Cedra Regnskapsservice AS | Professional & scientific | 2019 |
| Cedras Taxi AS | Transport & logistics | 2022 |
| Ceedr Norway AS | Professional & scientific | 2018 |
| Ceeview AS | Information & communication | 2010 |
| Cefalo AS | Information & communication | 2010 |
| Cefalon AS | Education | 2014 |
| Ceg Invest AS | | 2022 |
| Cegelo AS | Arts & recreation | 2007 |
| Cehaca AS | Real estate | 1992 |
| Ceidel AS | | 2021 |
| Cej Entreprenør AS | Construction | 2022 |
| Cejf AS | | 2026 |
| Cejo AS | Financial services | 2005 |
| Cek AS | | 2005 |
| Cek Consult AS | Information & communication | 2015 |
| Cek Studio AS | Professional & scientific | 2021 |
| Ceki AS | Financial services | 2007 |
| Cekin AS | Construction | 2019 |
| Ceko AS | | 2021 |
| Cekorn AS | | 2021 |
| Cel-Bud Celina Szlek | Construction | 2007 |
| Celadon AS | | 2022 |
| Celebi AS | Administrative & support | 2025 |
| Celemi AS | | 2019 |
| Celer Invest AS | Real estate | 2021 |
| Celerant Consulting (French Company) | Professional & scientific | 2007 |
| Celerant Consulting Inc | Professional & scientific | 2007 |
| Celeres Da | Education | 2005 |
| Celeri AS | Information & communication | 2021 |
| Celerita AS | Wholesale & retail | 2023 |