| Bjørkli Holding AS | | 2020 |
| Bjørklund Gullbørsen AS | Wholesale & retail | 2011 |
| Bjørklund Gunerius AS | Wholesale & retail | 1983 |
| Bjørklund Netthandel AS | Wholesale & retail | 2008 |
| Bjørklund Norge AS | Wholesale & retail | 1992 |
| Bjørklund Retail AS | Wholesale & retail | 1995 |
| Bjørkmo AS | Construction | 2016 |
| Bjørknes AS | Education | 1987 |
| Bjørknes Privatskole AS | Education | 2026 |
| Bjørkum & Engesrønning Da | Professional & scientific | 2005 |
| Bjørn AS | Financial services | 2005 |
| Bjørn B Invest AS | Real estate | 2006 |
| Bjørn Bergvall AS | Financial services | 1985 |
| Bjørn Birkeland Økonomi AS | Professional & scientific | 1993 |
| Bjørn Brøndmo Plastikkirurgi AS | Health & social care | 2010 |
| Bjørn Busund AS | Health & social care | 1999 |
| Bjørn Dahl & Co AS | Wholesale & retail | 1969 |
| Bjørn Engebretsen AS | Wholesale & retail | 1967 |
| Bjørn Farmannsgate 8 AS | Real estate | 2004 |
| Bjørn Farmannsgt. 10 AS | Real estate | 2018 |
| Bjørn Flatland Invest AS | Financial services | 2009 |
| Bjørn Frisør AS | Other services | 2012 |
| Bjørn Gabrielsen Leser AS | Arts & recreation | 2022 |
| Bjørn Gamst AS | Professional & scientific | 1984 |
| Bjørn Grinde Holding AS | Financial services | 2005 |
| Bjørn Haga Maskin Og Transport AS | Construction | 2008 |
| Bjørn Harbo AS | Health & social care | 2018 |
| Bjørn Holberg JR AS | Wholesale & retail | 2012 |
| Bjørn Jørgensen AS | Professional & scientific | 1998 |
| Bjørn Jørgensen Invest AS | Real estate | 1990 |
| Bjørn Kvam Invest AS | Real estate | 2026 |
| Bjørn Madsstuen Eiendom AS | Real estate | 2005 |
| Bjørn Madsstuen Invest AS | Real estate | 2005 |
| Bjørn Mathisen Ans | Wholesale & retail | 1986 |
| Bjørn Moholt AS | | 2020 |
| Bjørn Ole Inglingstad Holding AS | Construction | 2019 |
| Bjørn Pedersen Vekst AS | Financial services | 2006 |
| Bjørn Rustad Holdings AS | Financial services | 2018 |
| Bjørn Sandvik Holding AS | Financial services | 2014 |
| Bjørn Simonsen & Sønn AS | Construction | 1985 |
| Bjørn Simonsen Og Sønn Bygg AS | Construction | 2023 |
| Bjørn Stenberg AS | Hospitality | 2008 |
| Bjørn Tore Andersen AS | Wholesale & retail | 2001 |
| Bjørn Tore Furset AS | Hospitality | 2005 |
| Bjørn Vagle Eiendom AS | | 2019 |
| Bjørnafjorden Eiendom AS | Real estate | 2019 |
| Bjørnar Rød Invest AS | Wholesale & retail | 2018 |
| Bjørnar Skog Holding AS | Real estate | 2013 |
| Bjørnbeth Invest AS | | 2021 |
| Bjørndal Apotek AS | Wholesale & retail | 2019 |
| Bjørndal Dagligvare AS | Wholesale & retail | 2023 |
| Bjørndal Eiendomsinvest AS | Real estate | 2023 |
| Bjørndal Frisør Salong AS | Other services | 2016 |
| Bjørndal Gave- Og Blomsterstue Da | Wholesale & retail | 1989 |
| Bjørndal Holding AS | Real estate | 2005 |
| Bjørndal Kiosk Og Video Da | Wholesale & retail | 2002 |
| Bjørndal Legesenter AS | Health & social care | 2025 |
| Bjørndal Matbutikk AS | Wholesale & retail | 2023 |
| Bjørndal Norway AS | Wholesale & retail | 2021 |
| Bjørndal Senter Eiendom AS | Real estate | 2014 |
| Bjørndalsbakken Utbyggingsselskap AS | Real estate | 2002 |
| Bjørneby AS | Transport & logistics | 2012 |
| Bjørneby Holding AS | | 2018 |
| Bjørneby Invest AS | | 2021 |
| Bjørneby Og Sol-Høy AS | Real estate | 1917 |
| Bjørnebye Holding AS | Real estate | 2012 |
| Bjørnebye Sundsdal Holding AS | Information & communication | 2021 |
| Bjørnegårdssvingen 11 - 13 Ans | Real estate | 2006 |
| Bjørnegårdsvingen AS | Real estate | 2000 |
| Bjørnemyr Invest AS | Real estate | 2005 |
| Bjørnemyrveien 15 AS | Real estate | 2019 |
| Bjørnemyrveien 29 AS | Real estate | 2005 |
| Bjørnerud Eiendom AS | Real estate | 2026 |
| Bjørnerudveien 16 AS | Real estate | 2021 |
| Bjørnerudveien 18 AS | Real estate | 1986 |
| Bjørnerudveien 19 Eiendom AS | Real estate | 1995 |
| Bjørnerudveien 24 Ans | Real estate | 1988 |
| Bjørnerudveien 8 AS | Real estate | 1994 |
| Bjørnholding AS | | 2021 |
| Bjørnholt Bygg AS | Construction | 2003 |
| Bjørnholt Invest AS | | 2025 |
| Bjørns Rørleggerservice AS | Construction | 1997 |
| Bjørnsen Tørnquist AS | Education | 2017 |
| Bjørnseth Fraise Holding AS | Real estate | 2019 |
| Bjørnsgard Ans | Real estate | 1989 |
| Bjørnsgard AS | Hospitality | 1998 |
| Bjørnsgard Eiendom AS | Hospitality | 2015 |
| Bjørnsletta Legesenter AS | Health & social care | 2022 |
| Bjørnsons Gate 26 AS | | 2025 |
| Bjørnsons Hage 2 AS | Real estate | 2013 |
| Bjørnsons Hage 3 AS | Real estate | 2016 |
| Bjørnsons Hage AS | Real estate | 2010 |
| Bjørnsrud Holding AS | Real estate | 2005 |
| Bjørnsrud Invest AS | Real estate | 2011 |
| Bjørnstad Flatmo AS | Wholesale & retail | 2008 |
| Bjørnstad Group AS | Information & communication | 2018 |
| Bjørnstjerne Bjørnsons Gate 118-124 AS | Real estate | 1979 |
| Bjørnstjerne Bjørnsonsgate 86-92 AS | Real estate | 2000 |
| Bjørnstjerne Bjørnsonsgate AS | Real estate | 1986 |
| Bjørnstjerne Eiendom AS | Real estate | 2001 |