| Butikkdrift Hoveveien AS | Wholesale & retail | 2023 |
| Butikkdrift Pelan AS | Wholesale & retail | 2026 |
| Bvo AS | Financial services | 2017 |
| BW Utvikling AS | Real estate | 2023 |
| By M AS | Wholesale & retail | 1998 |
| By Tur Taxi AS | Transport & logistics | 2025 |
| Bygg & Miljø Gruppen AS | Construction | 2022 |
| Bygg & Prosjekt Service AS | Professional & scientific | 2004 |
| Bygg & Sauna AS | Other services | 2025 |
| Bygg Invest AS | Real estate | 2001 |
| Bygg Og Maskinservice AS | Real estate | 2011 |
| Bygg Termo AS | Construction | 2014 |
| Byggefirma Helge Rønneberg AS | Construction | 2018 |
| Byggefirma Kolbjørn Vagle AS | Construction | 2002 |
| Byggefirma Rasmus M. Hetland AS | Construction | 2016 |
| Byggefirma Sola AS | Construction | 2013 |
| Byggefirmaet Tor Kydland AS | Construction | 1998 |
| Byggfirma Tønnes Lura AS | Construction | 2024 |
| Byggfix AS | Real estate | 2021 |
| Byggfornying AS | Construction | 2018 |
| Byggmester Egil Knudsen AS | Construction | 2021 |
| Byggmester Glenn Hov AS | Construction | 2012 |
| Byggmester Høie AS | Construction | 2018 |
| Byggmester Knut Nilsen AS | Construction | 2016 |
| Byggmester Kommedal AS | Construction | 2019 |
| Byggmester Nielsen AS | Construction | 2003 |
| Byggmester Nygård AS | Construction | 2017 |
| Byggmester Øystein Torgersen AS | Construction | 2004 |
| Byggmester Øyvind Ims AS | Construction | 2015 |
| Byggmesterne Helle Og Byberg Ans | Construction | 1997 |
| Byggmodell AS | Professional & scientific | 2009 |
| Byhagen AS | Real estate | 2001 |
| Byrkjeland Invest AS | | 2024 |
| Byte Stock AS | Real estate | 2024 |
| Bådeog AS | Hospitality | 2012 |
| Båsen Invest AS | Financial services | 2005 |
| Båt & Bobil Service AS | Manufacturing | 2018 |
| Bærheim Holding AS | Real estate | 2013 |
| Bærheim Invest AS | Real estate | 2008 |
| Bærheim Maskin AS | Construction | 2008 |
| Bærheim VVS AS | Construction | 2018 |
| Bøcon AS | Manufacturing | 2010 |
| Bøcon Eiendom AS | Manufacturing | 2009 |
| Bøcon Holding AS | Manufacturing | 1995 |
| Bøe AS | Real estate | 2013 |
| Bøhn Container AS | Administrative & support | 2001 |
| Bøhn Eiendom AS | Administrative & support | 2005 |
| Bøkjeneset Va SA | Water & waste | 2019 |
| Bølgen Film AS | Information & communication | 2026 |
| Bølgen Media AS | Professional & scientific | 2021 |
| Bøllefrø Spesialkaffe AS | Wholesale & retail | 2026 |
| Bøndenes Hus Sandnes SA | Real estate | 1998 |
| Bøndenes Innkjøpslag SA | Wholesale & retail | 1992 |
| Bærheim Eiendom AS | Real estate | 1985 |
| C. Hove Eiendom AS | Real estate | 2022 |
| C. Hove Holding AS | Wholesale & retail | 2021 |
| C.J. Invest AS | | 2024 |
| C.Thomsen Graving AS | Construction | 2024 |
| C.Thomsen Holding AS | Administrative & support | 2024 |
| Cab Inc Holding AS | | 2025 |
| Cab Investments AS | Real estate | 2018 |
| Caco Invest AS | Professional & scientific | 2024 |
| Cad Dagligvare AS | Wholesale & retail | 2024 |
| Cahe Invest AS | Financial services | 2012 |
| Caissa AS | | 2026 |
| Calluna Kapital AS | Financial services | 2000 |
| Calma-Invest AS | | 2023 |
| Camaid Finans AS | | 2025 |
| Camaid Invest AS | | 2025 |
| Camas AS | Real estate | 2003 |
| Camdago AS | | 2021 |
| Camelias Hus AS | Wholesale & retail | 2017 |
| Cana Hage & Anlegg AS | Construction | 2013 |
| Canei AS | | 2021 |
| Canhvan Asiamat AS | Wholesale & retail | 2012 |
| Canjo AS | Professional & scientific | 2017 |
| Canrig Drilling Technology (Norway) AS | Professional & scientific | 2007 |
| Canrig Robotic Technologies AS | Professional & scientific | 2005 |
| Cantina Mexicana Madla AS | Hospitality | 2025 |
| Cantina Mexicana Taqueria AS | Hospitality | 2025 |
| Cap AS | Professional & scientific | 2022 |
| Capi Invest AS | Wholesale & retail | 2021 |
| Capitalis AS | | 1991 |
| Capnor AS | Professional & scientific | 2024 |
| Captura Aid and Trade AS | Wholesale & retail | 2023 |
| Captura AS | Professional & scientific | 2006 |
| Capus Rogaland AS | Professional & scientific | 2023 |
| Capvest AS | Real estate | 2001 |
| Capwell AS | Professional & scientific | 2011 |
| Car Consulting AS | Other services | 2025 |
| Caraman Bygg AS | Construction | 2017 |
| Caravanæss AS | Wholesale & retail | 1980 |
| Care Design Norge Ans | Wholesale & retail | 1997 |
| Cares Mobile Units AS | Hospitality | 2010 |
| Cares Remote Sites Norway AS | Hospitality | 1998 |
| Carfix Gann AS | Other services | 2001 |
| Carlsen & Carlsen AS | Professional & scientific | 2026 |
| Carlsens Eiendom AS | Real estate | 1988 |
| Carlsens Elektro Installasjon AS | Construction | 2001 |
| Caroda AB | Administrative & support | 2002 |