| 151 Holding AS | | 2026 |
| 5K Productions AS | Professional & scientific | 2018 |
| A-B Bygg AS | Construction | 2014 |
| Abacus Finans AS | Professional & scientific | 1988 |
| Accounting Solutions AS | Information & communication | 2019 |
| Aero Clean AS | Administrative & support | 2026 |
| Ajuell Consulting AS | Information & communication | 2013 |
| Aka System Invest AS | Construction | 1998 |
| Al & a Holding AS | | 2023 |
| Alter Ego Gruppen AS | Hospitality | 1991 |
| Ami AS | Professional & scientific | 1997 |
| Anb Consulting AS | Administrative & support | 2021 |
| Anchored Group AS | Wholesale & retail | 2023 |
| Anderson Consulting AS | Professional & scientific | 2017 |
| Animara Holding AS | | 2025 |
| Anmg AS | Health & social care | 2024 |
| Ann-C Pour Elle AS | Wholesale & retail | 2010 |
| Antopus Norge AS | Manufacturing | 2019 |
| Arctic Accounting AS | Professional & scientific | 2005 |
| Arlang AS | Professional & scientific | 2010 |
| Arsys Utvikling AS | Real estate | 2005 |
| Art Dep AS | Arts & recreation | 2024 |
| Artificial Intelligence International Agency AS | Professional & scientific | 2019 |
| Asker Og Bærum Mur Og Flisservice AS | Construction | 1998 |
| Asker Og Bærum Rør Og Sanitær AS | Construction | 2026 |
| Astone AS | Professional & scientific | 2022 |
| Atin AS | Professional & scientific | 2017 |
| Atin Holding AS | Wholesale & retail | 2017 |
| Atl AS | | 2026 |
| Autera AS | Professional & scientific | 2026 |
| Avblåst for Holding AS | Information & communication | 2022 |
| Avenda Eiendom AS | Real estate | 2025 |
| Abacus Consult AS | Professional & scientific | 1986 |
| Ba-Re Eiendom AS | Real estate | 2013 |
| Babylon Frisør AS | Other services | 2025 |
| Bakkal Rykkinn AS | Wholesale & retail | 2019 |
| Balanza Gruppen AS | Professional & scientific | 2005 |
| Barca Holding AS | | 2023 |
| Barrock Invest AS | Real estate | 2012 |
| Bastion Holding AS | | 2025 |
| Beauty & Health Nordic AS | Other services | 2012 |
| Beauty Bozza AS | Wholesale & retail | 2020 |
| Belito AS | Financial services | 2006 |
| Berg Og Hox AS | Wholesale & retail | 2022 |
| Bgotech AS | Professional & scientific | 2024 |
| Bida Invest AS | Health & social care | 2020 |
| BILSPA1 AS | Other services | 2019 |
| Bjelkebukt AS | | 2010 |
| Blue Hedge AS | Health & social care | 1999 |
| Blue Line AS | Professional & scientific | 1987 |
| Blue Mountain AS | Professional & scientific | 2005 |
| Boligform AS | Real estate | 2017 |
| Borhani AS | Administrative & support | 2025 |
| Bridi Shipping AS | Transport & logistics | 1993 |
| Bryn Gartneri AS | Agriculture & fishing | 2015 |
| Bryn Legesenter AS | Health & social care | 2019 |
| Bsch AS | Real estate | 2021 |
| Bydynamikk AS | Information & communication | 2024 |
| Bygg - Proff AS | Construction | 2013 |
| Bygg Og Tømrermester Erik Kylling & Co AS | Construction | 2004 |
| Bærum Boligfornying AS | Wholesale & retail | 2015 |
| Bærum Bygg Og Graveservice AS | Construction | 2014 |
| Bærum Elektro AS | Construction | 2021 |
| Bærum Elektropartner AS | Construction | 1998 |
| Bøystad AS | Professional & scientific | 2023 |
| Canialel Holding AS | Financial services | 2018 |
| Caschedenier AS | Real estate | 2005 |
| Cassaforte AS | Real estate | 2000 |
| Cerro Arco AS | Information & communication | 2026 |
| Ceths AS | | 2021 |
| Christiane Brudesalong AS | Wholesale & retail | 1998 |
| Chrono Capital AS | | 2012 |
| Chronovisor AS | | 2012 |
| Coachinvest AS | Professional & scientific | 2005 |
| Compositae AS | Information & communication | 1998 |
| Consultant Bemanningsbyrå Og Rekruttering AS | Administrative & support | 2019 |
| Consus Holding AS | | 2020 |
| Corvid Studio Da | Information & communication | 2017 |
| CP Nordic.No AS | Wholesale & retail | 2012 |
| CSG AS | Professional & scientific | 2013 |
| Dabeni Holding AS | | 2024 |
| DB Tømrer AS | Construction | 2021 |
| Deltalifter Technologies AS | Professional & scientific | 2005 |
| Deprez Holding AS | Real estate | 2016 |
| DJ Helset Bygg AS | Construction | 2020 |
| DM Ventures AS | | 2025 |
| Drasil Energy Da | Professional & scientific | 2011 |
| Dysthedesign AS | Professional & scientific | 1972 |
| E Balder AS | | 2014 |
| Ebj Holding AS | | 2026 |
| Ecototal AS | Wholesale & retail | 2025 |
| Edeima Utvikling AS | Real estate | 2020 |
| Efr Holding AS | Construction | 2024 |
| Eimeskaret AS | Real estate | 2024 |
| Elementet AS | Financial services | 2013 |
| Elfina AS | | 2011 |
| Emballasjehuset AS | Wholesale & retail | 2016 |
| Emballeringskonsulentene AS | Wholesale & retail | 1989 |
| Emonkey AS | Information & communication | 2013 |
| Eos Fortuna AS | | 2025 |