| As-H Invest AS | | 2022 |
| Asalvik Eiendom AS | Real estate | 2021 |
| Asi Rød Holding AS | Financial services | 2017 |
| Asina Holding AS | Real estate | 2016 |
| Ask Kompetansesenter AS | Education | 2025 |
| Askbanken.No Da | Education | 2021 |
| Assist Haugesund AS | Information & communication | 2014 |
| Assist Holding AS | | 2020 |
| Assist Norge AS | Wholesale & retail | 2023 |
| Assl Engineering Ltd | Manufacturing | 2010 |
| Ast Service AS | Construction | 2020 |
| Astrea Advice AS | Professional & scientific | 2016 |
| Astrea Invest AS | | 2025 |
| Astrid Og Stein Holding AS | Manufacturing | 2019 |
| At-H AS | Professional & scientific | 2017 |
| Athos AS | Financial services | 1996 |
| Ativo AS | Professional & scientific | 2021 |
| Atlas Helse Og Velvære AS | Other services | 2013 |
| Atlerga AS | Wholesale & retail | 2024 |
| Auda Holding AS | | 2025 |
| Audiopedagog Ojeda AS | Health & social care | 2023 |
| Audiopedagog Rasmussen AS | Health & social care | 2021 |
| Augvald AS | Professional & scientific | 2017 |
| Austmannavegen 11B AS | Real estate | 2022 |
| Autem Consulting AS | Professional & scientific | 2019 |
| Auto A1 AS | Wholesale & retail | 2009 |
| Auto Vest AS | Wholesale & retail | 2023 |
| Auto-Pluss AS | Other services | 2010 |
| Auto-Pluss Bil AS | Wholesale & retail | 2025 |
| Av Eiendom AS | Real estate | 2004 |
| Avaldsnes Invest AS | Financial services | 2006 |
| Avanti Drift AS | Health & social care | 2022 |
| Avanti Drift Fysio AS | Health & social care | 2022 |
| Avanti Holding Norge AS | Health & social care | 2022 |
| Avanti Hospitals DK AS | | 2026 |
| Avdigital AS | Wholesale & retail | 2019 |
| Avena AS | Health & social care | 2018 |
| Avirent AS | Administrative & support | 2018 |
| Avk Bygg AS | Construction | 2023 |
| Avoir AS | Information & communication | 2018 |
| Axos AS | Information & communication | 2020 |
| Aya Internasjonal Mat AS | Wholesale & retail | 2022 |
| Aø Holding AS | Wholesale & retail | 2009 |
| Aøf Holding AS | | 2025 |
| B.Helgeland Holding AS | | 2022 |
| B70 Eiendom AS | Real estate | 2026 |
| Bajani Holding AS | Wholesale & retail | 2005 |
| Bakarøynå Kompetanse AS | Arts & recreation | 2023 |
| Bakke Haga Holding AS | | 2026 |
| Balder Fus Barnehage AS | Education | 2024 |
| Balder Management AS | Administrative & support | 2002 |
| Baldersheim Investment AS | Health & social care | 2025 |
| Balsam Ojh AS | Other services | 2018 |
| Bang Transport AS | Transport & logistics | 2017 |
| Banthai 3265 AS | Hospitality | 2022 |
| Barbershop Oasen AS | Other services | 2017 |
| Bare Hyggelig AS | Hospitality | 2024 |
| Bare Ice Cream AS | Manufacturing | 2025 |
| Barentzymes AS | Professional & scientific | 2013 |
| Barrabarra Holding AS | | 2021 |
| Barvåg AS | Wholesale & retail | 2019 |
| Baso Eiendom AS | Real estate | 1985 |
| Baso Holding 2 AS | Construction | 2021 |
| Baso Holding AS | Real estate | 2005 |
| Bauer-Nilsen AS | Manufacturing | 2018 |
| Bauer-Nilsen Eiendom AS | Real estate | 1992 |
| Bauer-Nilsen Holding AS | Manufacturing | 1925 |
| Bauer-Nilsen Kapital AS | Financial services | 2010 |
| Bauge Auto AS | Wholesale & retail | 1990 |
| Bauge Invest AS | Financial services | 2005 |
| BB Markedet Haugesund AS | Hospitality | 2021 |
| BB Progressio Holding AS | | 2019 |
| BB2S5 AS | Real estate | 2024 |
| BB2S9 AS | Real estate | 2024 |
| Bbauksjon.No AS | Wholesale & retail | 2016 |
| Beauty Import AS | Wholesale & retail | 1996 |
| Becom AS | Education | 2023 |
| Bedre Bygg Nuf | Construction | 2010 |
| Bedrifts-Økonomisk Kontor AS | Professional & scientific | 1957 |
| Begge Deler Da | Wholesale & retail | 2006 |
| Bek AS | Real estate | 2025 |
| Bellamor AS | Hospitality | 2013 |
| Bellandrei Restaurant Bar & Catering AS | Hospitality | 2021 |
| Bem Invest AS | | 2005 |
| Ben-To Holding AS | Hospitality | 2020 |
| Benarius AS | Real estate | 2007 |
| Benhaug AS | Wholesale & retail | 1990 |
| Benthor AS | | 2021 |
| Bento Sushi AS | Hospitality | 2017 |
| Berg Eiendom Entreprenør AS | Construction | 2022 |
| Berg Eiendom Etne AS | Real estate | 2017 |
| Berg Eiendom H-90 AS | Real estate | 2006 |
| Berg Eiendom Haraldsvang AS | Real estate | 2002 |
| Berg Eiendom Haugaland AS | Real estate | 2025 |
| Berg Eiendom Haugesund AS | Real estate | 1989 |
| Berg Eiendom Konsern AS | Real estate | 2025 |
| Berg Eiendom Raglamyr AS | Real estate | 2025 |
| Berg Eiendom Tuhauggata AS | Real estate | 2023 |
| Bergdal Eiendom AS | | 2025 |
| Bergem Capital AS | | 2026 |