| Blå Blåne AS | | 2023 |
| Blåbærsaft AS | | 2023 |
| Blågrønn AS | Information & communication | 2026 |
| Blånipa AS | Real estate | 2006 |
| BM Bolig AS | Real estate | 2023 |
| Bnbspesialisten AS | Hospitality | 2023 |
| Bnvisuals AS | Professional & scientific | 2021 |
| Bo Eiendom AS | Real estate | 1965 |
| Bo Trygt AS | Real estate | 2019 |
| BO-1990 AS | Real estate | 1983 |
| Boa Sykler AS | Wholesale & retail | 2002 |
| Boardbrain AS | Professional & scientific | 2023 |
| Bob Boligutleie AS | Real estate | 1996 |
| Bob Eiendomstjenester AS | Real estate | 1998 |
| Bob Eiendomsutvikling AS | Real estate | 2006 |
| Bob Parkering AS | Real estate | 2016 |
| Bob Utleiemegling AS | Real estate | 2026 |
| Bocca Grill AS | Hospitality | 2015 |
| Bodale Bygg AS | Construction | 2018 |
| Bodega Drift AS | Real estate | 2005 |
| Bodn AS | Transport & logistics | 2026 |
| Bodoni Forlag AS | Information & communication | 2005 |
| Bodutleie Nordnes AS | Real estate | 2019 |
| Boetablering AS | Real estate | 1990 |
| Bofellesskapet Fireren AS | Real estate | 2016 |
| Bogsnesvegen AS | Real estate | 2009 |
| Bohave Design AS | Wholesale & retail | 2016 |
| Bohjemme AS | Health & social care | 2017 |
| Boios AS | Real estate | 2020 |
| Boksalongen Lib AS | Wholesale & retail | 2014 |
| Bolettgruppen AS | Real estate | 1991 |
| Bolig Bygger'N Eiendom AS | Construction | 2005 |
| Bolig for Alle AS | Real estate | 2012 |
| Boligaksjeselskapet Gørbitzgate 14 | Real estate | 2005 |
| Boligaksjeselskapet Hib Apart | Households | 2003 |
| Boligaksjeselskapet Triangelhus | Households | 1954 |
| Boliginstituttet I Bergen AS | Real estate | 1983 |
| Boliglaget Bendixensvei 15-17 AS | Households | 1956 |
| Boliglaget Kristofer Jansonsvei 2-12 AS | Households | 1955 |
| Boliglaget Nordahl Rolfsensv 1-3-5 AS | Households | 1957 |
| Boliglaget Nordahl Rolfsensvei 22 AS | Households | 1956 |
| Boligplaner AS | Real estate | 2024 |
| Boligreno AS | Construction | 2022 |
| Boligselskapet AS Løbergsveien 104 | Households | 1948 |
| Boligselskapet Av 1910 AS | Real estate | 1911 |
| Boligsenteret Bergen AS | Construction | 2006 |
| Boligsenteret Bergen Holding AS | Real estate | 2006 |
| Boligsenteret Prosjektutvikling AS | Real estate | 2018 |
| Bollroc AS | Professional & scientific | 2025 |
| Bollywood Bar AS | Hospitality | 2020 |
| Bomodul AS | Manufacturing | 2017 |
| Bon Holding AS | Real estate | 2013 |
| Bonanza Boligstyling AS | Professional & scientific | 2017 |
| Bonding Bolig AS | Real estate | 2021 |
| Bonitet AS | | 2026 |
| Bonitet Holding AS | | 2026 |
| Bonitet Invest AS | Real estate | 2013 |
| Bono Baronsgården AS | Real estate | 2022 |
| Bono Bolig AS | Real estate | 2019 |
| Bono Fantoft AS | Real estate | 2025 |
| Bono Fantoft Eiendom AS | Real estate | 1998 |
| Bono Fyllingsdalen AS | Real estate | 2022 |
| Bono Heiane AS | Real estate | 2012 |
| Bono Helldalstoppen AS | Real estate | 2019 |
| Bono Hjorteveien AS | Real estate | 2022 |
| Bono Hjorteveien Utvikling AS | Real estate | 2025 |
| Bono Klokkargarden AS | Real estate | 2022 |
| Bono Kokstad AS | Real estate | 2022 |
| Bono Lysefjorden AS | Real estate | 2022 |
| Bono Prestegården AS | Real estate | 2022 |
| Bono Prosjekt AS | Real estate | 2020 |
| Bono Sandviksboder AS | Real estate | 2011 |
| Bono Skjold AS | Real estate | 2022 |
| Bono Spelhaugen AS | Real estate | 2020 |
| Bono Utvikling AS | Real estate | 2020 |
| Bontelabo AS | Real estate | 2007 |
| Boonsang Holding AS | | 2025 |
| Boprosjekt AS | Real estate | 1984 |
| Boras AS | | 2025 |
| Borders AS | Information & communication | 2024 |
| Bording AS | Wholesale & retail | 1991 |
| Borea Asset Management AS | Financial services | 2005 |
| Borealis Group AS | | 2023 |
| Bored of Directors AS | Professional & scientific | 2023 |
| Borgeskogtoppen 13-15 AS | Real estate | 2022 |
| Born Digital AS | Information & communication | 2020 |
| Borzfuel Da | Wholesale & retail | 2024 |
| Bos Energy AS | Construction | 2021 |
| Boska Eiendom AS | Real estate | 2023 |
| Boska Holding AS | Real estate | 2009 |
| Bosunt AS | Professional & scientific | 2012 |
| Botanica Blomster AS | Wholesale & retail | 1988 |
| Botnavegen Holding AS | Real estate | 2022 |
| Botnen Og Tømmerbakke AS | Construction | 2014 |
| Bounce Collective AS | Other services | 2025 |
| Bovare AS | | 2025 |
| Bovest Eiendom AS | Real estate | 2025 |
| Bow Agathe AS | Transport & logistics | 2020 |
| Bow Caroline AS | Transport & logistics | 2020 |
| Bowen AS | | 2025 |