| Norsk Fototeknikk AS | Professional & scientific | 2024 |
| Nyborg Leiekjøring AS | Agriculture & fishing | 2023 |
| Nørstegård AS | Real estate | 2005 |
| Oddvar Hagen Gartneri Og Blomster AS | Agriculture & fishing | 1996 |
| Ola I Eiendom AS | Real estate | 2020 |
| Opne AS | Information & communication | 2026 |
| Oppland Elektro AS | Construction | 2004 |
| Paulsrud Bygg AS | Construction | 2023 |
| Paulsrud Snekkerverksted AS | Manufacturing | 2000 |
| Peloy Holding AS | Financial services | 2016 |
| Per CHR Johnsen Agenturer AS | Wholesale & retail | 1994 |
| Petter Surnflødt AS | Transport & logistics | 1986 |
| PMM Eiendom AS | | 2020 |
| Rauostkompaniet G-35 Da | Arts & recreation | 2014 |
| Regnskapsfører'N AS | Professional & scientific | 2007 |
| Riddervold Samdrift Da | Agriculture & fishing | 2005 |
| Røste Eiendom AS | Real estate | 1986 |
| Røste Holding AS | Real estate | 2005 |
| S&S Multiservice AS | Administrative & support | 2026 |
| Samarbeidsorg for Utmarksnæring | Other services | 1995 |
| Segalstad Autosenter AS | Wholesale & retail | 2010 |
| Seielstad Holding AS | Wholesale & retail | 2005 |
| Sigurd Og Ola Grimstad AS | Transport & logistics | 1994 |
| Skap-Opplevelser AS | Administrative & support | 2025 |
| Skei Seterlag AS | Real estate | 2021 |
| Skeikampen Eiendom SA | Professional & scientific | 2014 |
| Skeikampen Vekst AS | Real estate | 2001 |
| Snekkeremil AS | Construction | 2017 |
| Svein Simenrud AS | Manufacturing | 2010 |
| T&M Maskin Da | Agriculture & fishing | 2025 |
| Ta Ti Trening AS | Arts & recreation | 2020 |
| Termonic AS | Administrative & support | 2025 |
| Tomteplan AS | Real estate | 2018 |
| Torbo AS | Real estate | 2005 |
| Torleif Seielstad Holding AS | Real estate | 2005 |
| Torsdalsvegen SA | Real estate | 1944 |
| Trond W. Andersen Holding AS | Professional & scientific | 2024 |
| TT Fredriksen Eiendom AS | Real estate | 2024 |
| TT Fredriksen Holding AS | Wholesale & retail | 2024 |
| TT Maskin AS | Construction | 2015 |
| Turvande AS | Real estate | 2009 |
| Tårnfalk AS | Construction | 2026 |
| Universaldreams AS | Arts & recreation | 2022 |
| Utex AS | Administrative & support | 2013 |
| Vedkaran AS | Agriculture & fishing | 2024 |
| Vestre Gausdal Autosenter AS | Real estate | 1997 |
| Vidar Paulsen Holding AS | Other services | 2021 |
| Vintergrønne Veksthus AS | Real estate | 2023 |
| W-Klipp AS | Other services | 2025 |
| Ånung Løype Holding AS | Construction | 2005 |
| Østre Gausdal Vestside Utmarkslag SA | Arts & recreation | 1947 |
| Østringsvegen 1 AS | Real estate | 2005 |
| Øverbygdskjølen Og Jønnbulia Utmarkslag SA | Real estate | 1964 |
| Øyhaugen Transport AS | Transport & logistics | 2024 |