| Bor Invest AS | | 2020 |
| Bor Utvikling AS | Real estate | 2007 |
| Bor-Sag AS | Construction | 2025 |
| Bora AS | Real estate | 2002 |
| Bora Holding AS | Professional & scientific | 2023 |
| Bora Holding GmbH Nuf | Wholesale & retail | 2026 |
| Bora Kompetansereiser AS | Administrative & support | 2017 |
| Borander Invest AS | | 2021 |
| Borch Engineering AS | Manufacturing | 2021 |
| Borch Rove AS | Health & social care | 2023 |
| Bordalen AS | Real estate | 2022 |
| Border Music Norway AS | Professional & scientific | 2014 |
| Borderless AS | Information & communication | 2017 |
| Borderline Resources AS | Professional & scientific | 1998 |
| Bordewick Bedrift AS | Arts & recreation | 2021 |
| Bording | Professional & scientific | 2004 |
| Boreal Avenue AS | Real estate | 2025 |
| Boreal Capital AS | | 2024 |
| Borealcore AS | Real estate | 2015 |
| Borealis Offshore Consultants AS | Professional & scientific | 2008 |
| Borealis Productions AS | Information & communication | 2000 |
| Borealis Skin Clinic AS | Wholesale & retail | 2026 |
| Boreas Capital AS | | 2020 |
| Boretti Holding AS | | 2024 |
| Borg & Partners AS | Professional & scientific | 2013 |
| Borg Capital Partners AS | Professional & scientific | 2019 |
| Borg Spenning Holding AS | | 2025 |
| Borgafjellet Eiendom AS | Real estate | 2019 |
| Borgar Eiendom Fredrikstad AS | Real estate | 2007 |
| Borgar Eiendom Oslo AS | Real estate | 2006 |
| Borgar Invest AS | Transport & logistics | 1956 |
| Borgar Nord AS | Real estate | 2011 |
| Borgarveien 18/20 AS | Real estate | 2007 |
| Borge Holding AS | Real estate | 1967 |
| Borge Investments AS | | 2024 |
| Borge Lie Invest AS | Financial services | 2015 |
| Borgen & Co AS | | 2025 |
| Borgen Eckey Ingeniørverkstedet AS | Information & communication | 1997 |
| Borgen Gruppen AS | Real estate | 2012 |
| Borgen Investment Group Norway AS | | 2003 |
| Borgen Legesenter Da | Health & social care | 2013 |
| Borgen Næringseiendom Ans | Real estate | 2025 |
| Borgen Production AS | Information & communication | 2002 |
| Borgen Utvikling AS | Real estate | 2017 |
| Borgen-Invest AS | | 2021 |
| Borgenbakken 12 AS | Real estate | 2017 |
| Borgenhagen AS | Real estate | 2020 |
| Borgenhaug AS | Real estate | 2005 |
| Borgenhaug Capital AS | | 2022 |
| Borgenstad AS | | 2025 |
| Borgentoppen Eiendom AS | Real estate | 2026 |
| Borgenveien 42 AS | Real estate | 2005 |
| Borgenveien 42 Eiendom AS | Real estate | 2013 |
| Borgenveien 50 AS | Real estate | 2020 |
| Borgenveien 50 Næring AS | Real estate | 2006 |
| Borgenveien Utvikling AS | Real estate | 2012 |
| Borger Withs Gate 22 Oslo AS | Real estate | 2025 |
| Borgergata 10 AS | Real estate | 2006 |
| Borgermester Platous Gate 7 AS | Real estate | 2019 |
| Borgersen Billakkering AS | Other services | 1997 |
| Borgeskogen 13 AS | Real estate | 2006 |
| Borgeskogen 42 AS | Real estate | 2005 |
| Borgeskogen 42 Eiendomsinvest AS | Real estate | 2019 |
| Borgeskogen 45 AS | Real estate | 2008 |
| Borgeskogen 46 AS | Real estate | 2007 |
| Borgeskogen 48 AS | Real estate | 2017 |
| Borgeskogen 49 AS | Real estate | 2015 |
| Borgeskogen 5-7 AS | Real estate | 2004 |
| Borgeskogen 69 AS | Real estate | 2006 |
| Borgeskogen 73 AS | Real estate | 2011 |
| Borgeskogen Lager Invest AS | | 2023 |
| Borgeskogen Loginvest AS | Financial services | 2021 |
| Borgeskogen Logistikkinvest AS | Real estate | 2021 |
| Borggata 7-9 Invest AS | Real estate | 2021 |
| Borggatekomplekset AS | Real estate | 2012 |
| Borggaten 7 AS | Real estate | 2005 |
| Borggaten 7 Kultur-Eiendom AS | Real estate | 2013 |
| Borggården AS | Financial services | 1997 |
| Borghagen Holding AS | | 2019 |
| Borghatten AS | Financial services | 2015 |
| Borghild AS | Professional & scientific | 2007 |
| Borghini Entertainment AS | Information & communication | 2025 |
| Borghovs Ekspo Og Demo Ans | Administrative & support | 2006 |
| Borgland Consult AS | Professional & scientific | 2020 |
| Borgmo AS | Professional & scientific | 2016 |
| Borgpark AS | Real estate | 2007 |
| Borgs Holding AS | | 2021 |
| Borgterrassen Parkering AS | Transport & logistics | 2011 |
| Borgvang Productions AS | Professional & scientific | 2014 |
| Borgvind AS | Energy | 2018 |
| Borgvær Holding AS | | 2025 |
| Borgwik AS | Professional & scientific | 2006 |
| Borhaven Arkitekter AS | Professional & scientific | 2014 |
| Boring AS | Information & communication | 2023 |
| Borjanka AS | Health & social care | 2024 |
| Borkenholm AS | Real estate | 2004 |
| Borkman Invest AS | Real estate | 2004 |
| Born Global AS | Professional & scientific | 1997 |
| Born Global Invest AS | | 2023 |
| Boro Eiendom AS | Real estate | 2007 |