| 2KP Bygg AS | Construction | 2008 |
| A Capella AS | Information & communication | 2005 |
| A View AS | Real estate | 2021 |
| A-Consulting Ans | Professional & scientific | 2004 |
| A4 Invest AS | | 2025 |
| Aase Nordeng AS | Financial services | 2005 |
| Abk Invest AS | Financial services | 2005 |
| Above Media AS | Information & communication | 1934 |
| Acaso Invest AS | Real estate | 2004 |
| Addwize AS | Information & communication | 2021 |
| Advokatfirmaet Brox AS | Professional & scientific | 2024 |
| Advokatfirmaet Fjeldheim AS | Professional & scientific | 1998 |
| Aggregate AS | | 2022 |
| Aggregate II AS | | 2023 |
| Agile Invest AS | | 2019 |
| Ahm Holding AS | Financial services | 2011 |
| Al Harald AS | Financial services | 2005 |
| All Sales AS | Administrative & support | 2026 |
| Allé Design Studio AS | Professional & scientific | 2026 |
| Alm Larssen Holding AS | Real estate | 1997 |
| Almono Holding AS | | 2026 |
| Alsor AS | | 2019 |
| Amala AS | Wholesale & retail | 2014 |
| Amid Holding AS | Real estate | 2021 |
| Amped AS | Arts & recreation | 2023 |
| Amped Holding AS | Arts & recreation | 2023 |
| Amped Live AS | Arts & recreation | 2024 |
| Ampli Consulting AS | Professional & scientific | 2021 |
| Anbo Invest AS | Real estate | 2021 |
| Antigone AS | | 2021 |
| Aquafarming AS | Agriculture & fishing | 2017 |
| Aquaform Vannaerobic AS | Education | 2017 |
| Arken Invest AS | Professional & scientific | 2014 |
| Artemis Investment AS | Financial services | 2005 |
| AS Bråtan | Real estate | 1988 |
| AS Kamas | Real estate | 1982 |
| AS Stamar | Financial services | 1986 |
| Asaki AS | Professional & scientific | 2013 |
| Asf Capital AS | Real estate | 2023 |
| Assatura Invest AS | | 2025 |
| Astor Design AS | Professional & scientific | 2015 |
| Aurei Invest AS | | 2026 |
| Authentica AS | Professional & scientific | 2018 |
| Autorisert Fotterapeaut Ki Ilsaas AS | Health & social care | 2020 |
| Avicenna Pharmacy AS | Wholesale & retail | 2021 |
| Awl Invest AS | Real estate | 2006 |
| Araki AS | Real estate | 1988 |
| B-S Holding AS | | 2022 |
| Babar Studio AS | Professional & scientific | 2023 |
| Badstua Holding AS | | 2019 |
| Balder Consulting AS | Information & communication | 2023 |
| Baum AS | Wholesale & retail | 2025 |
| Bay Invest AS | Health & social care | 2020 |
| Bento Invest AS | Real estate | 2012 |
| Beprama AS | | 2022 |
| Berg Bygg AS | Construction | 1998 |
| Bergfjord Atk AS | Health & social care | 2013 |
| Berggård Invest AS | | 2026 |
| Bergstien Eiendom AS | Real estate | 2021 |
| Bergvill F/X AS | Professional & scientific | 2021 |
| BG Investment AS | | 2024 |
| Big Solutions AS | Administrative & support | 2026 |
| Bill Kon AS | Real estate | 1984 |
| Bionor Health AS | Wholesale & retail | 2023 |
| Biot AS | Professional & scientific | 2005 |
| Bjelldokken Holding AS | | 2022 |
| Bjørg Holding AS | Information & communication | 2022 |
| Blegen AS | Construction | 2012 |
| Blesvik Holding AS | | 2024 |
| Blueplay AS | Professional & scientific | 2023 |
| BNR Invest AS | Real estate | 2012 |
| Bofs Holding AS | Real estate | 2016 |
| Bonic AS | Real estate | 1996 |
| Bonkbonk AS | Information & communication | 2023 |
| Brand Entertainment & Events AS | Arts & recreation | 2017 |
| Brimor Invest AS | Professional & scientific | 2020 |
| BSV Invest AS | Professional & scientific | 2016 |
| Bucher Sandbakk Invest AS | | 2024 |
| Bugge Artistmanagement AS | Professional & scientific | 2014 |
| Businessconsulting AS | Professional & scientific | 2016 |
| Callq AS | Information & communication | 2018 |
| Calven AS | Professional & scientific | 1999 |
| Capital Phi AS | Financial services | 2018 |
| Care Bioscience AS | Professional & scientific | 2026 |
| Cashmere House Pop Up AS | Wholesale & retail | 2023 |
| Cayenne Invest AS | Real estate | 2004 |
| Cem Holding AS | | 2019 |
| Central Holding AS | | 2005 |
| Chi Invest AS | Financial services | 2018 |
| Chibi AS | Information & communication | 2000 |
| CHK AS | Professional & scientific | 2022 |
| Choli Collection AS | Wholesale & retail | 2009 |
| Chremefil AS | | 2021 |
| Chrisly AS | Financial services | 2016 |
| Christian Riis Holding AS | | 2026 |
| Cift Holding AS | | 2024 |
| Cinvema AS | | 2008 |
| Citius Invest AS | Professional & scientific | 2003 |
| Clairtuv AS | Professional & scientific | 2026 |
| CNR Invest AS | | 2021 |