| A. O. Bøstrand AS | Manufacturing | 2026 |
| A. Westre AS | Manufacturing | 1986 |
| A. Ørstavik AS | Wholesale & retail | 2014 |
| Aaho Invest AS | Real estate | 2025 |
| Aam Samdrift Da | Agriculture & fishing | 2006 |
| Aambakk Eigedom AS | Real estate | 2021 |
| Aambakk Service Og Powersports AS | Wholesale & retail | 2025 |
| Adb Tjenester AS | Information & communication | 1995 |
| Advice AS | Professional & scientific | 1999 |
| Advokatfirmaet Lundberg Og Langva AS | Professional & scientific | 2018 |
| Agrilogg AS | Information & communication | 2019 |
| Agro AS | Wholesale & retail | 1987 |
| Agro Møre AS | Wholesale & retail | 2014 |
| AI Rør AS | Construction | 2026 |
| Akslar AS | Information & communication | 2023 |
| Aksnes AS | Professional & scientific | 2010 |
| Aksnes Holding AS | | 2025 |
| Alchva AS | Water & waste | 2020 |
| Alu-Teck AS | Manufacturing | 1985 |
| Anders Hovdengt. 14 AS | Real estate | 2009 |
| Andreas Ose Østgaard Holding AS | Other services | 2022 |
| Angus Eigedom AS | Real estate | 2000 |
| Anleggsservice Ørsta AS | Construction | 2015 |
| Ann Kathrins Motebutikk AS | Wholesale & retail | 2000 |
| Ano Gruppen AS | Real estate | 2024 |
| ANS INPRO automasjonsteknikk | Manufacturing | 1988 |
| Ansvarsgruppen AS | Education | 2026 |
| Arctic Biopharma AS | Wholesale & retail | 2019 |
| Arctic Bioscience AS | Manufacturing | 2011 |
| Arctic Nutrition AS | Professional & scientific | 2020 |
| Arnco AS | Construction | 1986 |
| Arnesin AS | Financial services | 2013 |
| AS Frendetun | Real estate | 1957 |
| AS Sæbjørn | Agriculture & fishing | 1973 |
| Asko AS | Wholesale & retail | 1951 |
| Asko Bolig AS | Real estate | 2021 |
| Asko Eiendom AS | Real estate | 1999 |
| Asko Holding AS | Wholesale & retail | 2006 |
| Asko Mat AS | Hospitality | 2020 |
| Asko Ålesund AS | Wholesale & retail | 2004 |
| At Lift & Maskinutleige AS | Construction | 2007 |
| Atelo Invest AS | | 2021 |
| Aura AS | Information & communication | 2023 |
| Aurstad Bygg AS | Construction | 2011 |
| Aurstad Holding AS | Real estate | 2005 |
| Austefjord Mekaniske Verksted AS | Manufacturing | 2015 |
| Autosenter Vest AS | Other services | 2019 |
| Axnes Holding AS | Information & communication | 2019 |
| B Berg AS | Construction | 2013 |
| Bakkeli AS | Real estate | 2014 |
| Bakkesmia AS | Manufacturing | 2006 |
| Bargaintec Da | Manufacturing | 2003 |
| Barstad Samdrift Da | Agriculture & fishing | 2006 |
| Bergvegen Skogsveglag SA | Real estate | 2024 |
| Beto Invest AS | | 2023 |
| Bilvarehuset AS | Wholesale & retail | 1997 |
| Bjørdal Asfalt AS | Construction | 1998 |
| Bjørndal Fisk AS | Agriculture & fishing | 2024 |
| Bma Holding Invest AS | Construction | 2023 |
| Bolig Og Forretningsbygg AS | Real estate | 1974 |
| Bona Eigedom AS | Real estate | 2005 |
| Bondebuda AS | Wholesale & retail | 2026 |
| Bondhus Trafikkskule AS | Education | 2015 |
| BPB Holding AS | Wholesale & retail | 2017 |
| Bramo Mekaniske Da | Manufacturing | 1993 |
| Brautaset Vassverk SA | Water & waste | 1982 |
| Brokers AS | Wholesale & retail | 2016 |
| Bruksbutikken AS | Real estate | 2003 |
| Bryggekvartalet Ørsta AS | Hospitality | 2024 |
| Brødrene Øvstegård AS | Administrative & support | 2020 |
| Bulkut AS | Other services | 2024 |
| Bullmann AS | Wholesale & retail | 2003 |
| Bullmann Eigedom AS | Real estate | 2007 |
| Busmart AS | Real estate | 2022 |
| Busmart Byggservice AS | Real estate | 2025 |
| Bygg 1 Eigedom AS | Real estate | 2025 |
| Bygg 1 Holding AS | | 2025 |
| Bygg 1 Produkter AS | Wholesale & retail | 2025 |
| Byggmester Dalseth AS | Construction | 2012 |
| Byggmester Magnar Enerhaug AS | Construction | 2005 |
| Byggoppføring AS | Construction | 2010 |
| Byggpartner AS | Professional & scientific | 1994 |
| Brødr. Øyehaug A/S | Manufacturing | 1971 |
| Bøstrand AS | Transport & logistics | 2019 |
| Bøstrand Eigedom AS | Real estate | 2023 |
| Bøstrand Gruppen AS | Transport & logistics | 2023 |
| Bøstrand Transport AS | Transport & logistics | 2021 |
| Bøstrand Utleige AS | Administrative & support | 2021 |
| Cabe Invest AS | Agriculture & fishing | 2005 |
| Castberg AS | Wholesale & retail | 2025 |
| Civics Smash AS | Information & communication | 2026 |
| Crashville AS | Arts & recreation | 2021 |
| D&L Flis Og Bygg AS | Construction | 2018 |
| Dale Montering AS | Construction | 2025 |
| Dale Unik AS | Wholesale & retail | 2026 |
| Dalevegen 31 AS | Real estate | 2025 |
| Dekorbetong AS | Construction | 2018 |
| Destin AS | Wholesale & retail | 2022 |
| Det Lille Napoli Ørsta AS | Hospitality | 2017 |
| Din Bolig AS | Real estate | 2005 |