| 1018 Design AS | Professional & scientific | 2017 |
| 2286MOH AS | Professional & scientific | 2024 |
| 4 Utleie AS | Administrative & support | 2021 |
| A. Langseth Holding AS | Real estate | 2016 |
| A. Stavne Holding AS | | 2021 |
| Advokat Marit Eriksson AS | Professional & scientific | 2007 |
| Advokatfirmaet Velund & Co Da | Professional & scientific | 2006 |
| Afb Holding AS | Financial services | 2005 |
| Agc AS | Financial services | 2005 |
| Aher AS | Financial services | 2005 |
| Alpha Care Nordic AS | Real estate | 2020 |
| Altilaft AS | Manufacturing | 2025 |
| Amanita Invest AS | Agriculture & fishing | 2021 |
| Andersens Eiendom AS | Transport & logistics | 2012 |
| Andreas Loe AS | Construction | 2019 |
| Anin Holding AS | | 2025 |
| Anlegg Og Transport AS | Real estate | 1983 |
| Ans Oppdal Gatekjøkken | Hospitality | 1990 |
| Anshushaug AS | Health & social care | 2021 |
| Arbeidertun SA | Real estate | 2014 |
| Arkitekt Narve Skårsmoen AS | Professional & scientific | 2024 |
| AS Kanalmontasje | Administrative & support | 1982 |
| Asoja AS | | 2018 |
| Auna Bygg Oppdal AS | Construction | 2025 |
| Auna Invest AS | Professional & scientific | 2022 |
| Aune Gård AS | Real estate | 1986 |
| Aunelund Eiendom AS | Real estate | 2018 |
| Aunetunet 2 AS | Real estate | 2023 |
| Aunetunet AS | Real estate | 2021 |
| Aunflata AS | Real estate | 1948 |
| Autogaranti AS | Wholesale & retail | 2019 |
| Autosenteret Oppdal AS | Wholesale & retail | 1996 |
| Autotal AS | Wholesale & retail | 2016 |
| Awo AS | | 2020 |
| B.Boligstyling AS | Professional & scientific | 2015 |
| Baco AS | Manufacturing | 2015 |
| Balder Kapital AS | Professional & scientific | 2024 |
| Bedriftsservce.No AS | Professional & scientific | 2015 |
| Bedrock AS | Construction | 2025 |
| Bedrock Eiendom AS | Real estate | 2020 |
| Bedrock Holding AS | | 2025 |
| Berghallen Kretshus Ba | Real estate | 1986 |
| Bergmesteren Recycling AS | Professional & scientific | 2013 |
| Bhdv AS | Real estate | 2025 |
| Bilbergern Oppdal AS | Transport & logistics | 2026 |
| Bjerkaker Transport AS | Transport & logistics | 2010 |
| Bjerkeløkkja AS | Hospitality | 2012 |
| Bjørkmoen AS | Real estate | 2015 |
| Bjørkmoflata 31 AS | Construction | 2023 |
| Bjørkåsen AS | Agriculture & fishing | 2023 |
| Bjørkåsen Vasslag SA | Water & waste | 2022 |
| BK Forum AS | | 2017 |
| Blekkslagarn AS | Construction | 2020 |
| Blekksmia Oppdal AS | Construction | 2021 |
| Blokkhuslivegen Skogsveiforening SA | Real estate | 1999 |
| Blåøret AS | Real estate | 2017 |
| Bnza AS | | 2023 |
| Bogey AS | Professional & scientific | 2007 |
| Bogey II AS | | 2024 |
| Boma Holding AS | Real estate | 2005 |
| Book Central Norway AS | Hospitality | 2011 |
| Boops AS | Real estate | 2011 |
| BR. Bjørndalsæter Treskjærerverksted AS | Manufacturing | 1989 |
| Bracket AS | Health & social care | 2016 |
| Bratt Holding AS | Wholesale & retail | 2023 |
| Breesgård Turistsenter AS | Hospitality | 2010 |
| Buen Eiendom AS | Real estate | 2006 |
| Bårds Snekkeri AS | Manufacturing | 1997 |
| Cafe Ludvik AS | Hospitality | 1996 |
| Capri Invest Holding AS | Financial services | 2015 |
| Classic Oppdal AS | Real estate | 2021 |
| Cobra Eiendom Oppdal AS | Real estate | 2012 |
| Cobra Låven AS | Hospitality | 2012 |
| Cobra Management AS | Professional & scientific | 2003 |
| Comfortbutikken Rørsenteret AS | Construction | 1997 |
| Coop Oppdal SA | Wholesale & retail | 1920 |
| Cornelia Salomonsson AS | Professional & scientific | 2025 |
| D.P.D.O. Invest AS | Financial services | 2006 |
| Dale Maskin AS | Construction | 2004 |
| Din Konferansepartner AS | Professional & scientific | 2015 |
| Dindal Sameie Ans | Arts & recreation | 1999 |
| Doktor Gress På Taket AS | Construction | 2021 |
| Dovresno AS | | 2020 |
| Dovreveien Butikk AS | Real estate | 1999 |
| Drista AS | | 2022 |
| Driva Aquaculture Holding AS | | 2026 |
| Driva Genetics AS | Agriculture & fishing | 2026 |
| Driva Oppdrett AS | Agriculture & fishing | 2026 |
| Driva Trafikkskole AS | Education | 2017 |
| Dvai AS | Information & communication | 2026 |
| E Hage AS | Transport & logistics | 2020 |
| E.Hagen Holding AS | Construction | 2022 |
| Egle AS | Construction | 2021 |
| Elgs- Og Finnmoen Skogsveglag SA | Real estate | 1959 |
| Elinst Oppdal AS | Construction | 2011 |
| Elisabeth & Jan Erik Da | Construction | 2021 |
| Elkjøp Samkom AS | Wholesale & retail | 2024 |
| Elkjøp Stormarked Oso AS | Wholesale & retail | 1996 |
| Elotec AS | Manufacturing | 1992 |
| Emil AS | Real estate | 1996 |