| Bellmann Investerer AS | Wholesale & retail | 2021 |
| Bello Invest AS | | 2000 |
| Bellomonte AS | Financial services | 2012 |
| Bellona Holding AS | Professional & scientific | 2010 |
| Bellvane AS | Professional & scientific | 2022 |
| Belma Invest AS | Financial services | 2007 |
| Belmonte Beverage Group Norway AS | Wholesale & retail | 2024 |
| Belmonte Eiendom AS | Real estate | 2021 |
| Belmonte Fine Wine AS | Wholesale & retail | 2024 |
| Belmonte Holding AS | Real estate | 2020 |
| Belmonte Property Group AS | Real estate | 2021 |
| Belmonte Spirits AS | Wholesale & retail | 2024 |
| Belmonte Vino Holding AS | Wholesale & retail | 2022 |
| Belmonte Wine 4 You AS | Wholesale & retail | 2024 |
| Belmonte Wine Co AS | Wholesale & retail | 2024 |
| Belmonte Wine Group AS | Wholesale & retail | 2004 |
| Belo AS | Real estate | 1986 |
| Belon AS | | 2018 |
| Belowi Capital AS | | 2020 |
| Belowi Invest Ltd AS | | 2025 |
| Belowi Invest Ltd Nuf | | 2006 |
| Bels AS | Real estate | 2020 |
| Bels Holding AS | | 2019 |
| Belsasar AS | Wholesale & retail | 2025 |
| Belsenso Executive AS | Professional & scientific | 1997 |
| Belships AS | Transport & logistics | 1935 |
| Belships Holding AS | | 2025 |
| Beltenut AS | Financial services | 2021 |
| Beltenut Holding AS | | 2022 |
| Beluga Og Snadd AS | Professional & scientific | 2015 |
| Belvedere AS | Professional & scientific | 1999 |
| Belway AS | | 2024 |
| Belü Holding AS | | 2024 |
| Bemanningshjelpen AS | Administrative & support | 2013 |
| Bemanningsmannen AS | Administrative & support | 2014 |
| Bemanningsxperten Oslo AS | Administrative & support | 2019 |
| Bemas Invest AS | | 2013 |
| Bemasteen AS | Professional & scientific | 2010 |
| Bember AS | Information & communication | 2026 |
| Bemi Holding AS | | 2021 |
| Bemlo AS | Information & communication | 2021 |
| Bemo Bil Og Bygg AS | Wholesale & retail | 2023 |
| Bemo Invest AS | | 2025 |
| Bemobi International AS | Information & communication | 2017 |
| Bemu Holding AS | | 2026 |
| Benbau AS | Construction | 2026 |
| Benbry AS | Wholesale & retail | 2018 |
| Benchmark AS | Professional & scientific | 1994 |
| Benchmark Ventures AS | Professional & scientific | 2022 |
| Benco Holding AS | | 2021 |
| Bendco AS | | 2025 |
| Bendecido Holding AS | | 2025 |
| Bendik Fon Holding AS | Financial services | 2018 |
| Bendik.Design AS | Professional & scientific | 2020 |
| Bendiksen & Anker Holding AS | | 2025 |
| Bendix Invest AS | | 2023 |
| Bendler Holding AS | Real estate | 2020 |
| Bendoh Consulting AS | Professional & scientific | 2025 |
| Bendoh Invest AS | | 2024 |
| Bendvold Holding AS | | 2020 |
| Bene AS | Information & communication | 2017 |
| Benea AS | Education | 2024 |
| Benedetto Eiendom AS | Real estate | 2017 |
| Benedicte Fjellanger AS | | 2023 |
| Benedicte Korneliussen AS | Other services | 2022 |
| Benedicte Schanke Eiendomsforvaltning AS | Real estate | 2015 |
| Benedictus AS | Wholesale & retail | 2024 |
| Benedikte Invest AS | Hospitality | 2005 |
| Benedikte Minos AS | Information & communication | 2020 |
| Benedikte Vippeextensions AS | Other services | 2017 |
| Benedikte Vippeextensions Sentrum AS | Other services | 2018 |
| Benefactor Invest AS | Professional & scientific | 2004 |
| Benefit Norge AS | Wholesale & retail | 2004 |
| Benestad Holding AS | Information & communication | 2021 |
| Benestad Invest AS | Real estate | 1994 |
| Benevita AS | | 2024 |
| Benfica AS | Real estate | 2021 |
| Benford Revisjon AS | Professional & scientific | 2026 |
| Benford Teknologi AS | Information & communication | 2026 |
| Bengler AS | | 1995 |
| Bengt Follestad AS | Real estate | 2005 |
| Bengt G. Lorentzen AS | Education | 2013 |
| Bengt Lewin AB | Health & social care | 2014 |
| Bengtson Automarin AS | Wholesale & retail | 2022 |
| Beni-Art Ans | | 1989 |
| Benico AS | | 2018 |
| Beniko AS | Financial services | 2020 |
| Benito Design Group AS | Professional & scientific | 2000 |
| Benjamin AS | Financial services | 2017 |
| Benjamin Cullis AS | Agriculture & fishing | 2022 |
| Benjamin Sats & Trykk Da | Manufacturing | 1990 |
| Benjamin's Alternatives AS | | 2025 |
| Benjan Holding AS | Real estate | 2000 |
| Benji AS | Information & communication | 2026 |
| Benke Invest AS | Health & social care | 2017 |
| Benkespesialisten AS | Wholesale & retail | 1998 |
| Benlinda AS | Wholesale & retail | 2011 |
| Benlouie Consulting AS | Professional & scientific | 2018 |
| Bennebrinch AS | Financial services | 2009 |
| Bennett Retail AS | Wholesale & retail | 2013 |