| Ohofseth AS | Real estate | 2012 |
| Ola S AS | Real estate | 2015 |
| Op Abelseth AS | Wholesale & retail | 1984 |
| Oppdrettslaks AS | Manufacturing | 2025 |
| Osvoll Maritime Consulting AS | Professional & scientific | 2024 |
| Paf Investment AS | | 2025 |
| Pandalus Invest AS | Financial services | 2013 |
| Pando AS | Information & communication | 2007 |
| Pe&R Holding AS | | 2026 |
| PNP Invest AS | | 2022 |
| Primek AS | Professional & scientific | 2024 |
| Prolima AS | Real estate | 2006 |
| Prolima Holding AS | | 2026 |
| Prosjekt-Utvikling AS | Wholesale & retail | 2011 |
| R O Invest AS | | 2017 |
| Rafi AS | Real estate | 1994 |
| Rafi Holding AS | Real estate | 2005 |
| Rafi Kapital AS | Real estate | 2011 |
| Ramsvik AS | Construction | 2005 |
| Risoro AS | Health & social care | 2024 |
| Rochs Industrier AS | Manufacturing | 2012 |
| Russebøen AS | Real estate | 2012 |
| Sandsæter Detailing AS | Other services | 2023 |
| Sawadee Kha AS | Hospitality | 2026 |
| Sentrum Eiendom BK Ans | Real estate | 2005 |
| Sigurd Nybø AS | Manufacturing | 2019 |
| Sjøholt Bil AS | Other services | 2020 |
| Sjøholt Bilskade AS | Other services | 2000 |
| Sjøholt Camping AS | Hospitality | 2015 |
| Sjøholt Catering AS | Hospitality | 1995 |
| Sjøholt Eiendom Holding AS | Wholesale & retail | 2021 |
| Sjøholt Folkehøgskole AS | Education | 2019 |
| Sjøholt Folkehøgskole Eiendom AS | Real estate | 2020 |
| Sjøholt Industri AS | Manufacturing | 2025 |
| Sjøholt Maskin AS | Wholesale & retail | 1982 |
| Sjøholt Næringsbygg AS | Real estate | 2010 |
| Sjøholt Tannklinikk AS | Health & social care | 2003 |
| Skjora AS | Real estate | 2015 |
| Skruihop AS | Wholesale & retail | 2014 |
| Sollied Drift AS | Construction | 2025 |
| Sollied Holding AS | Construction | 2025 |
| Stavseng Eiendom AS | Real estate | 2019 |
| Steinholt Handel AS | Transport & logistics | 1994 |
| Stokke Transport AS | Transport & logistics | 2021 |
| Stolt Mat AS | Wholesale & retail | 2016 |
| Storfjord Bilservice AS | Other services | 2012 |
| Struktivo AS | Professional & scientific | 2025 |
| Struktivo Holding AS | | 2026 |
| Støversten AS | Agriculture & fishing | 2006 |
| Sunnmøre Maskinservice AS | Agriculture & fishing | 2015 |
| Svartløken Grunneigarlag SA | Agriculture & fishing | 1883 |
| Systra Café AS | Hospitality | 2007 |
| Sjøholt Eiendom A/S | Real estate | 1988 |
| Tekken Eiendom AS | Real estate | 2024 |
| Tekken Holding AS | Real estate | 2024 |
| Templar Solutions AS | Information & communication | 2025 |
| Tkspv AS | Real estate | 2020 |
| Tomic Maler Service AS | Construction | 2022 |
| Torghandel AS | Wholesale & retail | 2017 |
| Tretoppen Eiendom AS | Real estate | 2019 |
| Tropical Sun AS | Other services | 2002 |
| Ulmo AS | Professional & scientific | 2024 |
| Vaksvik Vassverk SA | Water & waste | 1974 |
| Valde Eiendom AS | Transport & logistics | 1993 |
| Valgermo Fallrettslag Ba | Real estate | 2009 |
| Vaslag Invest AS | | 2025 |
| Vaslag Kontorservice Ans | Professional & scientific | 1995 |
| Vestre Grunneigarlag SA | Real estate | 2022 |
| Vexa AS | Professional & scientific | 2006 |
| Vjuit AS | Information & communication | 2020 |
| Vågaveien 25 AS | Real estate | 1981 |
| Wabi.Sabi AS | Hospitality | 2020 |
| Walgermo AS | Wholesale & retail | 2025 |
| Yra Trening AS | Arts & recreation | 2024 |
| Ålesund Tomteutvikling AS | Construction | 2017 |
| Økonomiservice AS | Professional & scientific | 1994 |
| Ørskog Bilsenter AS | Other services | 1988 |
| Ørskog Bygdeservice AS | Other services | 2020 |
| Ørskog Drift AS | Hospitality | 2025 |
| Ørskog Kulturhus SA | Real estate | 1985 |
| Ørskog Plastindustri AS | Manufacturing | 2014 |
| Ørskog Sambeite SA | Agriculture & fishing | 2015 |
| Ørskog Samdrift Da | Agriculture & fishing | 2007 |
| Ørskog Sankarlag Ba | Agriculture & fishing | 1964 |
| Ørskog Sparebank | Financial services | 1855 |
| Ørskog Vassverk Al | Water & waste | 1964 |
| Øyadalen Kraftverk AS | Energy | 2025 |
| Øyra Eigedom AS | Real estate | 2003 |