| Storvik S.R.O. | Administrative & support | 2007 |
| Storvik-Eiendom AS | Real estate | 2007 |
| Storvik-Holding AS | Manufacturing | 1979 |
| Stratego Media AS | Professional & scientific | 2023 |
| Subico Eiendom AS | Real estate | 2003 |
| Sucom AS | Information & communication | 2000 |
| Sun&Shi AS | Hospitality | 2014 |
| Sunndal Anlegg Og Transport AS | Construction | 2005 |
| Sunndal Bilservice AS | Wholesale & retail | 2003 |
| Sunndal Bilskade AS | Other services | 1998 |
| Sunndal Bingo AS | Arts & recreation | 2017 |
| Sunndal Dyreklinikk AS | Professional & scientific | 1996 |
| Sunndal Eiendomsutvikling AS | Real estate | 2006 |
| Sunndal Energi AS | Energy | 2020 |
| Sunndal Energi Holding AS | Energy | 2020 |
| Sunndal Farge AS | Wholesale & retail | 2011 |
| Sunndal Fargehandel AS | Construction | 2025 |
| Sunndal Havneterminal AS | Transport & logistics | 2021 |
| Sunndal Herrefrisør AS | Other services | 2019 |
| Sunndal Industribygg AS | Real estate | 2006 |
| Sunndal Legesenter AS | Health & social care | 2023 |
| Sunndal Maskinutleie AS | Administrative & support | 2002 |
| Sunndal Mat AS | Wholesale & retail | 2007 |
| Sunndal Medisinske Senter Da | Health & social care | 2002 |
| Sunndal Multiservice AS | Construction | 2016 |
| Sunndal Næringseiendom AS | Real estate | 1998 |
| Sunndal Næringsselskap AS | Professional & scientific | 1987 |
| Sunndal Taxi SA | Transport & logistics | 2002 |
| Sunndal Utvikling AS | Real estate | 2022 |
| Sunndalsfly Ans | Transport & logistics | 2003 |
| Sunndalshallen AS | Arts & recreation | 2012 |
| Sunndalsveien 6 AS | Real estate | 2002 |
| Sunndalsøra Blomster AS | Wholesale & retail | 2015 |
| Sunndalsøra Hotel Eiendom AS | Real estate | 1999 |
| Sunndalsøra Servicesenter AS | Wholesale & retail | 2022 |
| T Fossum Holding AS | Financial services | 2006 |
| Tannlegene Øiestad Ans | Health & social care | 2005 |
| Teknobingo Sunndalsøra AS | Arts & recreation | 2009 |
| Telekroken Eiendom AS | Real estate | 2006 |
| Tepro Tekniske Produkter Da | Manufacturing | 1994 |
| Tetor AS | | 2023 |
| Tigh AS | | 2019 |
| Tilapia AS | Professional & scientific | 2015 |
| Tobbe Invest AS | Real estate | 2022 |
| Todalsfjordprosjektet AS | Professional & scientific | 1987 |
| Tofo Service Ans | Administrative & support | 2001 |
| Torbjørn Torske Prosjektutvikling AS | Real estate | 1996 |
| Tottem AS | Financial services | 2009 |
| Tove Hundseth AS | Professional & scientific | 2008 |
| Tradex Interiør Ans | Agriculture & fishing | 1989 |
| Tradisjonsbygg AS Sunndalsøra | Construction | 1996 |
| Tredal Byggmarked AS | Wholesale & retail | 1997 |
| Tredal Hotell Og Turistsenter AS | Hospitality | 2001 |
| Tritosi Invest AS | Financial services | 2005 |
| Troll House Da | Arts & recreation | 2025 |
| Trolltind Utvikling AS | Real estate | 2011 |
| Trygve Leinum Holding AS | | 2021 |
| Trædal Eiendom AS | Hospitality | 1987 |
| Tvikan AS | | 2025 |
| Trædal Grus A/S | Wholesale & retail | 1985 |
| Tørset Bil AS | Wholesale & retail | 1996 |
| Tørset Bil Holding AS | Administrative & support | 2025 |
| Tørset Eiendom AS | Real estate | 2011 |
| Unity Holding AS | | 2023 |
| Vaheed Tannklinikk AS | Health & social care | 2017 |
| Vangshaugen AS | Hospitality | 2022 |
| Vegstasjon AS | Real estate | 2016 |
| Vfø AS | Professional & scientific | 2023 |
| Vinnutrappa AS | Arts & recreation | 2022 |
| Viva La Roma Da | Hospitality | 2011 |
| Vivido Invest AS | | 2024 |
| VS Holding AS | Real estate | 2005 |
| Wikfoss Energimontasje AS | Construction | 2013 |
| Wteq AS | Information & communication | 2026 |
| Wågbø Bygg Og Betong AS | Construction | 2018 |
| Yngle AS | Real estate | 2005 |
| Ødegårds Renhold Og Service AS | Administrative & support | 2014 |
| Økokonstruksjon AS | Construction | 2024 |
| Øksendalsøra Brygge AS | Real estate | 2023 |
| Øra Eiendom AS | Real estate | 1983 |
| Øra Elektro AS | Construction | 2021 |
| Øra Elektro Holding AS | | 2021 |
| Øra Farge Og Miljø AS | Wholesale & retail | 1992 |
| Øra Kafe Drift AS | Hospitality | 2019 |
| Øra Rør AS | Construction | 2022 |