| Bella Stavanger AS | Hospitality | 2021 |
| Belle Design Company AS | Professional & scientific | 2019 |
| Bellies AS | Hospitality | 2018 |
| Bellingmoor Ltd | Administrative & support | 2012 |
| Beltech Solutions AS | Manufacturing | 2005 |
| Belém AS | Professional & scientific | 2022 |
| Bemaja Holding II AS | Real estate | 2022 |
| Bemify AS | Information & communication | 2026 |
| Beoi AS | Information & communication | 2020 |
| Berad AS | | 2020 |
| Berbu AS | Real estate | 2005 |
| Berg Larsen Invest AS | Financial services | 2017 |
| Berg-Paulsen AS | Real estate | 2020 |
| Bergeland AS | Financial services | 2005 |
| Bergeland Eiendom AS | Real estate | 1982 |
| Bergeland Eiendomsdrift AS | Real estate | 2013 |
| Bergen Byarena AS | Real estate | 2015 |
| Bergesen & Tveit AS | Hospitality | 2007 |
| Bergf AS | Construction | 2019 |
| Berggraf Invest AS | Professional & scientific | 2005 |
| Berggård Amundsen Stavanger AS | Wholesale & retail | 2017 |
| Berglitoppen AS | | 2020 |
| Bergset IT Solutions Nuf | Information & communication | 2008 |
| Bergstø AS | Professional & scientific | 2021 |
| Bergtopp AS | | 2023 |
| Bernerhuset AS | Real estate | 1930 |
| Bernerveien 27 AS | Real estate | 2005 |
| Bernhardt Bygg & Eiendom AS | Construction | 2024 |
| Bernhardt Consulting AS | Professional & scientific | 2018 |
| Berrføtt AS | Real estate | 2016 |
| Bersk Holding AS | | 2020 |
| Bertmark Norge AS | Wholesale & retail | 1975 |
| Besparemegvel AS | Professional & scientific | 2015 |
| Best in Vest AS | Financial services | 2005 |
| Bestefar Invest AS | | 2018 |
| Bestyrerboligen Stavanger AS | Real estate | 2016 |
| Besætt AS | Manufacturing | 2020 |
| Beta-Consult AS | Administrative & support | 1998 |
| Betco Da | Construction | 1998 |
| Beto Avionics AS | Wholesale & retail | 2011 |
| Betr AS | Information & communication | 2010 |
| Better Energy AS | Education | 2009 |
| Better Exergy AS | Professional & scientific | 2026 |
| Better World AS | Information & communication | 2025 |
| Bevan AS | Information & communication | 2024 |
| Beyond Proteins Invest AS | | 2022 |
| Beyond Quality AS | | 2016 |
| Beyu AS | Wholesale & retail | 2021 |
| Bfjelde AS | | 2018 |
| Bfjelde I AS | | 2018 |
| Bfsi AS | | 2020 |
| BFW AS | Arts & recreation | 2016 |
| BG Bilrekvisita AS | Wholesale & retail | 2013 |
| BG Holding AS | Real estate | 2004 |
| BG Invest AS | Financial services | 2005 |
| Bge Contemporary Art Projects AS | Wholesale & retail | 2014 |
| BH Investering AS | Financial services | 2012 |
| Bha Consult AS | Professional & scientific | 2026 |
| Bhak Holding AS | | 2024 |
| Bhan Invest AS | Health & social care | 2019 |
| BHC AS | Professional & scientific | 2006 |
| Bhi AS | Financial services | 2018 |
| Bianculli Influence AS | Professional & scientific | 2025 |
| Bideco AS | Real estate | 2006 |
| Bifrost Rådgivning AS | Professional & scientific | 2025 |
| Big Hill AS | Hospitality | 2021 |
| Biglol Da | Information & communication | 2008 |
| Bigtimes AS | Administrative & support | 2020 |
| Bikefinder AS | Professional & scientific | 2015 |
| Bikon AS | Professional & scientific | 2016 |
| Bil Kurs Rogaland AS | Education | 2018 |
| Bil Vest AS | Other services | 2009 |
| Bilco Bilverksted AS | Other services | 1982 |
| Bildelgrossisten Rogaland AS | Wholesale & retail | 2024 |
| Bilfinger Isp Offshore Norway AS | Mining & quarrying | 1984 |
| Bilhuset AS | Real estate | 1995 |
| BILIST1 AS | Education | 2020 |
| Bilkarusellen Adevia AS | Professional & scientific | 2005 |
| Bilkilden AS | Wholesale & retail | 1994 |
| Bilkilden Leasing AS | Administrative & support | 2020 |
| Bilkilden Verksted AS | Other services | 2013 |
| Bill Invest AS | Financial services | 2005 |
| Billieco AS | | 2023 |
| Biloline AS | Professional & scientific | 2024 |
| Bilpleie Holdco AS | Other services | 2020 |
| Bingomaster AS | Arts & recreation | 2012 |
| Biodiner Kapital AS | | 2020 |
| Bioenergi Finnøy AS | Energy | 2009 |
| Biofriend AS | Wholesale & retail | 2024 |
| Bioprofile AS | Education | 2023 |
| Biotor AS | Professional & scientific | 2025 |
| Birger Vormestrand AS | Wholesale & retail | 1948 |
| Birgitta Gehlin Åberg & Per Åberg Ans | Wholesale & retail | 1991 |
| Birkedal Capital Allocation AS | | 2023 |
| Birkeklakk AS | | 2021 |
| Birkemo AS | Wholesale & retail | 1968 |
| Birkus AS | | 2019 |
| Bishop Shipping Inc | Transport & logistics | 2000 |
| Bisn Norway AS | Mining & quarrying | 2016 |
| Bispebryggen AS | Real estate | 1994 |