| 1,5 Advokatfirma AS | Professional & scientific | 2020 |
| 1,5 Fornybar AS | Energy | 2022 |
| 1,5 Holding AS | Agriculture & fishing | 2007 |
| 1,5 Invest AS | Real estate | 2007 |
| 231 Productions AS | Arts & recreation | 2019 |
| Anki AS | Agriculture & fishing | 2004 |
| Anna Berg Holding AS | | 2023 |
| Ans Mortensen Og Lund & Co | Wholesale & retail | 1989 |
| Arne Olsbakk Transport AS | Transport & logistics | 1997 |
| Arto Motor Da | Other services | 2000 |
| Atndalen Nord Veilag SA | Real estate | 2024 |
| Austad Skog AS | Real estate | 2006 |
| Austeng Maskin Og Hytteservice AS | Construction | 2010 |
| Bearwood AS | Agriculture & fishing | 2012 |
| Berg Og Sandboe AS | Construction | 1987 |
| Berg Og Sandboe Holding AS | Construction | 2018 |
| Beringer AS | | 1992 |
| Big River Valley Holding AS | Administrative & support | 2020 |
| Birkebeinervegen SA | Real estate | 1959 |
| Bjørns Transport AS | Construction | 1986 |
| Bjørsjøveien SA | Real estate | 1950 |
| Blåknute Da | Manufacturing | 2026 |
| Bokbind AS | Wholesale & retail | 2025 |
| Brødrene Ringen AS | Administrative & support | 2023 |
| Burchardt Eiendom AS | Financial services | 2012 |
| BW Mek AS | Manufacturing | 2024 |
| Byggesystem Gammelstu AS | Professional & scientific | 2000 |
| Børstad Rådgivning AS | Professional & scientific | 2015 |
| Dana Milano AS | Hospitality | 2024 |
| Fjell Luft Retreat Limited Nuf | Hospitality | 2024 |
| Fluxmagic AS | Professional & scientific | 2023 |
| Furuseth Gård AS | Agriculture & fishing | 2010 |
| Geitryggen AS | Administrative & support | 2022 |
| Green Kjølen Energy AS | Energy | 2022 |
| Grønn Skog AS | Agriculture & fishing | 2010 |
| Gårdsmaskin AS | Manufacturing | 2022 |
| Håndverkstjenester John Smedbakken AS | Construction | 2020 |
| Imsa Knowledge Company AS | Professional & scientific | 2013 |
| Imsliveien SA | Real estate | 2016 |
| Innlandet Utvikling AS | Professional & scientific | 2013 |
| IT Blocks AS | Information & communication | 2021 |
| Jakhelln Revegård AS | Agriculture & fishing | 1997 |
| Joveig AS | | 2023 |
| JXJ Engineering AS | Professional & scientific | 2025 |
| Kanten Drift Og Vedlikehold AS | Administrative & support | 2020 |
| Kaupang Møbler AS | Manufacturing | 2002 |
| KK Frisør AS | Other services | 2020 |
| Kneppåsen AS | Real estate | 2001 |
| Kongehaugen AS | Real estate | 1991 |
| Koppang Auto AS | Other services | 1982 |
| Koppang Radio Og TV AS | Wholesale & retail | 1975 |
| Koppang Treningssenter AS | Arts & recreation | 2016 |
| Koppangkjølen Beitelag SA | Agriculture & fishing | 1976 |
| Landkraft Ba | Energy | 2007 |
| Lauvåsen Fritidsområde SA | Real estate | 2014 |
| Legelinjen AS | Health & social care | 2016 |
| Leren Myrbakken AS | Real estate | 2023 |
| Lingjerde Holding AS | | 2021 |
| Linnea AS | Agriculture & fishing | 2012 |
| Lokalet Noren SA | Real estate | 2012 |
| Los Utvikling AS | Information & communication | 2025 |
| Margeritt Blomster Og Gaver AS | Wholesale & retail | 2012 |
| Meieriet Koppang AS | Real estate | 2000 |
| Messelt Eiendom AS | Real estate | 2019 |
| Messelt Invest AS | Financial services | 2016 |
| Midt-Østerdal Landbrukscenter AS | Wholesale & retail | 1981 |
| Moelven Østerdalsbruket AS | Manufacturing | 2000 |
| MONTØR1 AS | Administrative & support | 2005 |
| Mykleby Maskin AS | Energy | 1988 |
| Mykleby Setervei SA | Real estate | 1850 |
| Myrvang Eiendomsutvikling AS | Real estate | 2006 |
| Nordstu AS | Agriculture & fishing | 2020 |
| Nordstu Gård AS | Agriculture & fishing | 2020 |
| Nordstu Skogsdrift AS | Agriculture & fishing | 2021 |
| Norpro AS | Wholesale & retail | 2003 |
| Norpro Da | Wholesale & retail | 2000 |
| Norsk Kultursenter AS | Arts & recreation | 2017 |
| Olsen Invest AS | Real estate | 2015 |
| Pama AS | Professional & scientific | 1992 |
| Pan Naturkompetanse Da | Agriculture & fishing | 2007 |
| Reinkraft Datasenter Holding AS | Real estate | 2025 |
| Renåfjellet Service Da | Real estate | 2002 |
| Roen Transport AS | Construction | 2007 |
| Rognvola Holding AS | Real estate | 2020 |
| Røsten Transport AS | Transport & logistics | 2011 |
| Skogen Bygg Og Vedlikehold AS | Construction | 2017 |
| Skredderstua Holding AS | | 2026 |
| Sport 1 Koppang AS | Wholesale & retail | 2013 |
| Stai Service AS | Wholesale & retail | 2020 |
| Stai Vannverk SA | Water & waste | 1969 |
| Steinsvoll Gård Da | Agriculture & fishing | 2025 |
| Stor-Elvdal Begravelsesbyrå AS | Other services | 2011 |
| Stor-Elvdal Eiendomsutvikling AS | Construction | 2019 |
| Stor-Elvdal Hotell AS | Hospitality | 2007 |
| Stor-Elvdal Naturbarnehage AS | Education | 2020 |
| Stor-Elvdal Næringspark AS | Real estate | 2016 |
| Stor-Elvdal Rendalen Produkter AS | Health & social care | 1992 |
| Storfjellet Beitelag SA | Agriculture & fishing | 1956 |
| Sundfloen Sag SA | Manufacturing | 1998 |
| Søkkunda Kraftverk AS | Energy | 2015 |