| 2GM Eiendom AS | Real estate | 2019 |
| A-B Maskinservice Da | Construction | 2017 |
| A.M.T. Invest AS | Real estate | 2008 |
| Accion AS | Real estate | 1991 |
| Advokat Cato Simonsen AS | Professional & scientific | 2016 |
| Advokat Kathrine Gry Jakobsen AS | Professional & scientific | 2024 |
| Advokatfirmaet Eriksen AS | Professional & scientific | 2014 |
| Advokathuset Nord AS | Professional & scientific | 2013 |
| Aegilon AS | Professional & scientific | 2005 |
| Aglapen Eiendom AS | Real estate | 2022 |
| Ain AS | Wholesale & retail | 2022 |
| Akiso AS | Real estate | 2017 |
| Aksel Hansen Holding AS | | 2025 |
| Aktiv Eiendom Ans | Real estate | 1999 |
| Aktiva AS | Professional & scientific | 2012 |
| Alcor Holding AS | Health & social care | 2023 |
| Alpinbyen AS | Real estate | 2025 |
| Amy-Holding AS | | 2021 |
| Andfjordferga AS | Professional & scientific | 2025 |
| Andreassen Begravelsesbyrå Og Steinhuggeri AS | Manufacturing | 2005 |
| Andslimoen Veiservice AS | | 2002 |
| Ans Frukt Og Grønt | Wholesale & retail | 1990 |
| Ans Løkkes Regnskapsservice | Professional & scientific | 1988 |
| Ans Vårlund Og Grønnvold | Agriculture & fishing | 1991 |
| Apollo Frisør AS | Other services | 2012 |
| Aquafix AS | Wholesale & retail | 2026 |
| Arctic Industry AS | Manufacturing | 2022 |
| Arctic Traveller AS | Administrative & support | 2021 |
| Arctic Utleiesenter AS | Administrative & support | 2025 |
| Arctic VVS AS | Construction | 2017 |
| Arelia AS | Real estate | 2006 |
| Arnesen Mat AS | Hospitality | 2018 |
| Artic Clean AS | Administrative & support | 2025 |
| AS Finnsnes Aktivitetshall | Arts & recreation | 1988 |
| Asian Cuisine AS | Hospitality | 2017 |
| Assistanse Gruppen SA | Other services | 2017 |
| Aurora AS | Manufacturing | 2001 |
| Aurora Bilutleie AS | Administrative & support | 2025 |
| Aurora Skin AS | Other services | 2023 |
| B&C Regnskap AS | Professional & scientific | 2014 |
| B-Blessed AS | Wholesale & retail | 2026 |
| Baab Company AS | | 2021 |
| Bakkens Verksted AS | Construction | 1997 |
| Balloglaster AS | Financial services | 2005 |
| Barkli Invest AS | Financial services | 2014 |
| Basecamp Senja AS | Administrative & support | 2010 |
| BCS Eiendom Da | Real estate | 2010 |
| Bedehuset AS | Real estate | 2017 |
| Bedriftservice Nord AS | Agriculture & fishing | 2013 |
| Benfin AS | Wholesale & retail | 1994 |
| Bensin Stasjon Finnsnes AS | Wholesale & retail | 2017 |
| Berg Fisk AS | Agriculture & fishing | 2019 |
| Bergan Kompetanse AS | Professional & scientific | 2023 |
| Berglund & Fyhn Ans | Wholesale & retail | 2001 |
| Bernh Lund AS | Transport & logistics | 1997 |
| Berntsen Realinvest AS | Real estate | 2001 |
| Biffhuset Finnsnes AS | Hospitality | 2025 |
| Bil Og Service Finnsnes AS | Wholesale & retail | 2001 |
| Bil Service Nord AS | Other services | 2021 |
| Bil Service Nord AS | Other services | 2025 |
| Bilbyen Skadesenter Finnsnes AS | Other services | 2017 |
| Bilsenteret Eiendom AS | Real estate | 2019 |
| Bilsenteret Eiendom Invest AS | Real estate | 2022 |
| Bilsenteret Finnsnes AS | Wholesale & retail | 1997 |
| Bilskade Senja AS | Other services | 2026 |
| Bilskade Senja Eiendom AS | Real estate | 2026 |
| Bittens Syrum Nuf | Construction | 2022 |
| Bjorelvvegen Skogsvegforening | Administrative & support | 2005 |
| Bjørkeng Holding AS | Wholesale & retail | 2019 |
| Bjørn Åge Bergland AS | Wholesale & retail | 2014 |
| Bjørnehiet Eiendom AS | Real estate | 2024 |
| Blomli & Løkke Eiendom AS | Real estate | 2013 |
| Blomli Invest AS | | 2026 |
| Blomsterliv AS | Wholesale & retail | 2003 |
| Blue Circle AS | | 2026 |
| Blått Kompetansesenter Nord AS | Education | 2019 |
| Bo Og Bistand AS | Health & social care | 2017 |
| Bo Og Bistand Eiendom AS | Real estate | 2021 |
| Bo Og Bistand Narvik AS | Health & social care | 2026 |
| Bok I Nord AS | Arts & recreation | 2015 |
| Boligmesteren AS | Construction | 2020 |
| Boligmesteren Prosjekt AS | Real estate | 2014 |
| Borch Capital Management AS | Health & social care | 2017 |
| Borhaug Eiendom AS | Real estate | 2018 |
| Brannfjell Holding AS | | 2023 |
| Bratakst AS | Professional & scientific | 2017 |
| Bratthaugen Holding AS | Wholesale & retail | 2024 |
| Brautmo Invest AS | | 2022 |
| Brov AS | Construction | 2022 |
| BSN Eiendom AS | Wholesale & retail | 2006 |
| BT Fiske AS | Agriculture & fishing | 2017 |
| Bygg-Tema AS | Construction | 2009 |
| Bygg-Tema Eiendom AS | Real estate | 2003 |
| Byggeguiden AS | Real estate | 1998 |
| Byggmontasje Nor AS | Construction | 2022 |
| Byggservice Nord AS | Wholesale & retail | 2005 |
| Byparken Parkering AS | Real estate | 2023 |
| Bølgen Holding AS | Financial services | 2005 |
| Caminante - Travels, Events & Adventures AS | Administrative & support | 2015 |
| Campus Norge AS | Real estate | 2017 |