| 7S-TECHNOLOGY AS | Professional & scientific | 2009 |
| 7SIS AS | Wholesale & retail | 2021 |
| A & a Teker Investor AS | Hospitality | 2016 |
| A.Kosmo Holding AS | Construction | 2023 |
| A.O. Eide Maskinentreprenør AS | Water & waste | 2015 |
| Abt Alstahaug Byggteknikk AS | Construction | 2020 |
| Access 24/7 AS | Construction | 2008 |
| Adventure Helgeland AS | Administrative & support | 2020 |
| Advokatfirmaet Baadstø AS | Professional & scientific | 2013 |
| Advokatfirmaet Kvasstind AS | Professional & scientific | 2011 |
| Aiden Damac AS | | 2026 |
| Air Building AS | Construction | 2013 |
| Ak Regnskap AS | Professional & scientific | 2016 |
| Aka Bygg Og Montasje AS | Construction | 2024 |
| Akti Aqua Service AS | Agriculture & fishing | 2022 |
| Akti AS | Agriculture & fishing | 2023 |
| Alost AS | Real estate | 2008 |
| Alst Drift AS | Real estate | 2005 |
| Alstahaug Arabians AS | Agriculture & fishing | 2008 |
| Alstahaug Dyreklinikk AS | Professional & scientific | 2006 |
| Alstahaug Industrisalg AS | Wholesale & retail | 2022 |
| Alstahaug Parkering AS | Real estate | 2017 |
| Alsten Eiendom AS | Real estate | 1993 |
| Alsten Invest AS | Real estate | 2013 |
| Alsten Management AS | Agriculture & fishing | 2002 |
| Alsten Maskinstasjon AS | Construction | 1990 |
| Alstenveien 44 AS | Real estate | 2016 |
| Andenes 2 AS | Real estate | 2025 |
| Angelus Invest AS | | 2017 |
| Anka Invest AS | Real estate | 2021 |
| Anleggsproffen AS | Construction | 2016 |
| Antor AS | Construction | 2015 |
| Apollon Treningssenter AS | Real estate | 2010 |
| Aqua Rock Company AS | Mining & quarrying | 1991 |
| Aquality AS | Professional & scientific | 2026 |
| Arad Transport AS | Transport & logistics | 2025 |
| Arctic Circle AS | | 1992 |
| Arne Bjørnvold AS | Wholesale & retail | 2021 |
| Arne Bjørnvold Holding AS | Construction | 2021 |
| Arne På Hjørnet AS | Real estate | 2022 |
| Arneta AS | Transport & logistics | 2024 |
| Arnt Åge Holding AS | Real estate | 2005 |
| Arntzberg Holding AS | Financial services | 2017 |
| AS Landmaskin | Wholesale & retail | 1967 |
| AS Skansen | Real estate | 1985 |
| Aspectosea AS | | 2019 |
| Aspirantes Holding AS | Education | 2016 |
| Atlas Agro Holding AS | Manufacturing | 2021 |
| Auto Nor AS | Other services | 2013 |
| Aza Keystone AS | Real estate | 2008 |
| Aze Kiosk AS | Wholesale & retail | 2019 |
| Barneleker Sandnessjøen AS | Wholesale & retail | 1999 |
| Bb-Skog AS | Agriculture & fishing | 2024 |
| BC Group AS | Wholesale & retail | 2023 |
| Beaumont Holding AS | Real estate | 2011 |
| Berfjord Invest AS | Professional & scientific | 2020 |
| Berfjord Prosjekt AS | Professional & scientific | 2020 |
| Bergesen Holding AS | | 2005 |
| Betongteam AS | Construction | 2017 |
| BH Consulting AS | Professional & scientific | 2024 |
| Bifrost Marin AS | Professional & scientific | 2008 |
| Bildøy Invest AS | | 2021 |
| Bjørn Egil Sætern AS | | 2025 |
| Bjørn Kåre Sagabraaten AS | Construction | 2012 |
| Blomster Og Garnbutikken I Sandnessjøen AS | Wholesale & retail | 2002 |
| Blomsøy Maskin AS | Construction | 2002 |
| Blomsøya AS | | 2016 |
| Blueconsulting AS | Professional & scientific | 2016 |
| Bobra Helgeland AS | Real estate | 2021 |
| Boe Consult AS | Professional & scientific | 2014 |
| Bolig Nord AS | Real estate | 1990 |
| Borgarheimen AS | Real estate | 1998 |
| Borgheim Holding AS | Construction | 2005 |
| Botn Beitelag SA | Agriculture & fishing | 2017 |
| Botn Maskin AS | Construction | 1994 |
| Botn Skogsveier SA | Construction | 2023 |
| Botnfjord Skjell Da | Agriculture & fishing | 1999 |
| Botnveien Eiendom AS | Real estate | 2012 |
| Braute Jaktfelt SA | Agriculture & fishing | 2024 |
| Bredvold AS | Health & social care | 2006 |
| Brillehuset Sandnessjøen AS | Wholesale & retail | 2018 |
| Brønnøy Blikk AS | Construction | 2015 |
| By Breyholtz AS | Professional & scientific | 2025 |
| Bygg 1 Sandnessjøen AS | Construction | 2015 |
| Bygg 1 Sandnessjøen Holding AS | Construction | 2012 |
| C&A Holding AS | Wholesale & retail | 2017 |
| Cafe Colombia Ans | Wholesale & retail | 2010 |
| Cafo AS | Real estate | 2021 |
| Carl & Co Ans | Real estate | 2007 |
| Cast in Steel AS | | 2016 |
| Central Servering AS | Hospitality | 2018 |
| Chuaicham Invest AS | Wholesale & retail | 2023 |
| Cibus Maris Norway AS | Wholesale & retail | 2019 |
| Cinett AS | Wholesale & retail | 2005 |
| Conrad Müller Holding AS | Health & social care | 2011 |
| Contractor Bygg AS | Construction | 2013 |
| Corner Tksport AS | Wholesale & retail | 2024 |
| Dalfoss Eiendom AS | Real estate | 2021 |
| Datalink IT AS | Wholesale & retail | 2019 |
| Ddaao AS | Real estate | 2012 |