| Bcte Holding AS | Real estate | 2019 |
| Bcww AS | | 2020 |
| Bddy AS | Information & communication | 2025 |
| BDG AS | Construction | 2011 |
| Bdi P1 AS | Real estate | 2025 |
| Be Stjern Ans | Real estate | 2021 |
| Be-Ni Forlag Da | Information & communication | 2016 |
| Bearhill AS | Real estate | 2020 |
| Bearhill Invest AS | Real estate | 2021 |
| Beate Holding AS | Financial services | 2004 |
| Beauty by Sunni AS | Wholesale & retail | 2025 |
| Beauty of Norway AS | Other services | 2025 |
| Beautybar Ans | Other services | 2015 |
| Beautyinvest AS | | 2021 |
| Bec Biotek AS | Professional & scientific | 2024 |
| Bechtech AS | Information & communication | 2024 |
| Beddingen Invest AS | Real estate | 2009 |
| Bedico HMS AS | Health & social care | 2010 |
| Bedre Dager AS | Information & communication | 2024 |
| Bedriftsforvaltning AS | Real estate | 2019 |
| Bedrock Group AS | Information & communication | 2025 |
| Beefutures Holding SPV AS | | 2025 |
| Beetle AS | Other services | 2005 |
| Beform AS | Manufacturing | 2021 |
| Begkap AS | | 2022 |
| Beist Da | Arts & recreation | 2018 |
| Beist Merch Da | Wholesale & retail | 2022 |
| Bejo Holding AS | Professional & scientific | 2005 |
| Beka Invest AS | | 2015 |
| Bekken Bygg AS | Construction | 2006 |
| Bekken Familiebarnehage AS | Education | 2013 |
| Bekken Holding AS | Real estate | 2007 |
| Bela Eiendom AS | Real estate | 2006 |
| Belboe AS | | 2020 |
| Belegg Spesialisten AS | Construction | 2021 |
| Belima 2 AS | | 2021 |
| Belima AS | Professional & scientific | 2016 |
| Belima Invest AS | | 2019 |
| Belle Époque Invest AS | | 2020 |
| Bellingmo & Storås Oljeservice AS | Transport & logistics | 2014 |
| Belmont Holding AS | | 2024 |
| Bemanningseksperten Ans | Administrative & support | 2008 |
| Bemil Invest AS | | 2023 |
| Bemoma AS | Real estate | 2025 |
| Bendi Travel Group AS | Administrative & support | 2017 |
| Bengt Are Wågheim Holding AS | Mining & quarrying | 2018 |
| Benilla Holding AS | Professional & scientific | 1989 |
| Beniva AS | Real estate | 2001 |
| Benja Siam Midtbyen AS | Hospitality | 2022 |
| Benja Siam Thai Spa AS | Other services | 2016 |
| Benjaminbyen Holding AS | Hospitality | 2021 |
| Benkeplater Og Steinindustri AS | Wholesale & retail | 2016 |
| Bennea AS | | 2025 |
| Bennett AS | Professional & scientific | 2025 |
| Bennett Reklamebyrå AS | Professional & scientific | 1997 |
| Benny's NR. 1 AS | Hospitality | 2019 |
| Benoli AS | Real estate | 2012 |
| Benoli Engros AS | Wholesale & retail | 2020 |
| Benounis Invest AS | | 2021 |
| Bent Advisory AS | Professional & scientific | 2023 |
| Bent Holdings AS | Professional & scientific | 2022 |
| Bentdal Wear AS | Professional & scientific | 2026 |
| Bente Rødahl Arkitekter AS | Professional & scientific | 2001 |
| Bentega AS | Information & communication | 2024 |
| Bentes AS | Wholesale & retail | 1982 |
| Benum & Johansen AS | Real estate | 2013 |
| Benum Holding AS | Real estate | 2013 |
| Benum Jenssen AS | Hospitality | 2021 |
| Berail AS | Professional & scientific | 2024 |
| Berber Journée Consultancy AS | Professional & scientific | 2026 |
| Berco Holding AS | Real estate | 2017 |
| Beredskapskasser AS | Administrative & support | 2025 |
| Berg & Wigum AS | Construction | 2022 |
| Berg Familiebarnehage AS | Education | 2021 |
| Berg Invest Holding AS | Other services | 2005 |
| Berg Takservice AS | Construction | 2025 |
| Berg-Hansen Reisebureau Trondheim AS | Administrative & support | 1985 |
| Bergan AS | Real estate | 2001 |
| Berge Holdingsselskap AS | | 2023 |
| Berge Interiør AS | Wholesale & retail | 1979 |
| Bergen Cargo AS | Transport & logistics | 2023 |
| Berger Performance Marketing AS | Professional & scientific | 2024 |
| Bergersen Arkitekter AS | Professional & scientific | 1983 |
| Bergerudustad AS | Professional & scientific | 2024 |
| Bergh AS | Wholesale & retail | 2007 |
| Bergheim Barnehage SA | Education | 2003 |
| Bergljots Gate 3 AS | Real estate | 2024 |
| Berglund Hurdal AS | | 2026 |
| Bergomi Invest AS | | 2023 |
| Bergs Maskinhall AS | Real estate | 2017 |
| Bergsbakken Invest AS | | 2007 |
| Bergsligata 5 AS | Real estate | 2025 |
| Bergslyst Bolig AS | Real estate | 2021 |
| Bergstien 4 AS | Real estate | 2021 |
| Bergsvik Investment AS | | 2024 |
| Bergtunvegen Utbygging AS | Real estate | 2024 |
| Bergum Rørleggerservice AS | Construction | 2026 |
| Berit Kjeldsberg Invest AS | | 2019 |
| Berit Nordstrand AS | Health & social care | 2011 |
| Berit Øra Holding AS | Health & social care | 2024 |