| Ranka AS | Real estate | 2007 |
| Rasmus Flo Betong AS | | 2026 |
| Rasmus Flo Holding AS | | 2026 |
| Ravda Sun Sea Ood | | 2017 |
| Reb AS | Professional & scientific | 2018 |
| Retail Drift AS | Wholesale & retail | 2017 |
| Retail Eigedom AS | Real estate | 2020 |
| Rho Invest AS | | 2021 |
| Riisekulen Eigedom AS | Real estate | 2023 |
| Rise Næring AS | Real estate | 2013 |
| Sandbakk AS | | 2019 |
| Secal AS | Information & communication | 2022 |
| Seljeneset Da | Real estate | 2004 |
| Seniortrim AS | Arts & recreation | 2022 |
| Senn Gavas AS | Real estate | 1990 |
| Sentrum Eiendom AS | Real estate | 1989 |
| Sentrumsgården Eigedom AS | Real estate | 2002 |
| SH Eigedom AS | Transport & logistics | 1993 |
| SHH Invest AS | Financial services | 2005 |
| Sico AS | Professional & scientific | 1985 |
| Signalnorway AS | Professional & scientific | 2017 |
| Skarsmyra Vest AS | Real estate | 2021 |
| Skarstein & Walaker AS | Professional & scientific | 2000 |
| Skarstein-Førde AS | Transport & logistics | 2023 |
| Skrede Multi AS | Construction | 2025 |
| Sol Eigedom AS | Real estate | 2007 |
| Solheim Vassverk Ysk SA | Water & waste | 1994 |
| Solvik Panorama AS | Real estate | 2026 |
| Sparta DS AS | Construction | 2022 |
| Sport Stryn AS | Wholesale & retail | 1989 |
| Ssoi-R Consulting AS | Professional & scientific | 2026 |
| Stauri AS | Construction | 2023 |
| Steffen Svarstad AS | Professional & scientific | 2021 |
| Stift Holding AS | | 2021 |
| Storesunde Grendahus SA | Real estate | 2024 |
| Storesunde Invest AS | | 2024 |
| Stryn 365 AS | Real estate | 2020 |
| Stryn Adrenalin AS | | 2020 |
| Stryn Aktivitetslodge AS | Administrative & support | 2021 |
| Stryn Anleggsmaskin AS | Construction | 2007 |
| Stryn Arrangement AS | Administrative & support | 2005 |
| Stryn Autogass AS | Wholesale & retail | 2017 |
| Stryn Bedriftsbarnehage AS | Education | 1991 |
| Stryn Bensinstasjon AS | Wholesale & retail | 1984 |
| Stryn Bilverksted AS | Other services | 2010 |
| Stryn Bokhandel AS | Wholesale & retail | 1990 |
| Stryn Bygg Og Eigedom AS | Construction | 2021 |
| Stryn Byggimport AS | Wholesale & retail | 2013 |
| Stryn Camping AS | Hospitality | 2006 |
| Stryn Dampskipsekspedisjon AS | Transport & logistics | 2005 |
| Stryn Eiendom AS | Construction | 2006 |
| Stryn Eiendom Entreprenør AS | Construction | 2011 |
| Stryn Endorfin AS | Administrative & support | 2021 |
| Stryn Friluftservice AS | Real estate | 2018 |
| Stryn Fysioterapi Ans | Health & social care | 2024 |
| Stryn Golden Resort AS | Hospitality | 2023 |
| Stryn Hotel AS | Hospitality | 1991 |
| Stryn Hotel Eigedom AS | Real estate | 2025 |
| Stryn Invest AS | Construction | 2010 |
| Stryn Kaffebar & Vertshus AS | Hospitality | 2014 |
| Stryn Kiosk Gatekjøkken AS | Real estate | 1985 |
| Stryn Kjøkken AS | Hospitality | 2019 |
| Stryn Laks AS | Wholesale & retail | 2025 |
| Stryn Lavpris AS | Wholesale & retail | 1991 |
| Stryn Mek Verksted AS | Other services | 2018 |
| Stryn Næringspark AS | Real estate | 2019 |
| Stryn Pukk AS | Mining & quarrying | 1991 |
| Stryn Rekneskapslag SA | Professional & scientific | 1970 |
| Stryn Retail AS | Wholesale & retail | 2015 |
| Stryn Sentrum - Bankgården AS | Real estate | 2011 |
| Stryn Sport AS | Wholesale & retail | 2026 |
| Stryn Tannlegekontor AS | Health & social care | 2009 |
| Stryn Taxisentral AS | Transport & logistics | 1994 |
| Stryn Trafikksenter AS | Real estate | 2011 |
| Stryn Trelast AS | Professional & scientific | 2007 |
| Stryn Vaktmester Service AS | Administrative & support | 2002 |
| Stryn Vertshus Eiendom AS | Real estate | 2018 |
| Stryn Vinterski AS | Arts & recreation | 1998 |
| Stryncabins AS | | 2021 |
| Strynsvatn Grunneigarlag SA | Real estate | 1971 |
| Stryvo AS | Manufacturing | 2008 |
| Stryvo Invest AS | Manufacturing | 2014 |
| Stuhaug AS | Professional & scientific | 2015 |
| Submara Survey AS | Professional & scientific | 2016 |
| Sunniva Kveen Fysioterapi AS | Health & social care | 2023 |
| Svanshus AS | Real estate | 2023 |
| Svarstad Bruk AS | Real estate | 2005 |
| Sviland Lager AS | Real estate | 2022 |
| Swedin & Vinsrygg AS | | 2020 |
| Sykkel Tid AS | Wholesale & retail | 2025 |
| Sæbø Optikk AS | Wholesale & retail | 1997 |
| Sætre Eigedom Da | Real estate | 2005 |
| Sølvberg Bygg AS | Construction | 2008 |
| Sønsterudbråten AS | Wholesale & retail | 2020 |
| Takstfirma Kristen Eikenæs AS | Real estate | 2016 |
| Tannlege Lars Sandbakk AS | Health & social care | 2018 |
| Taptrac AS | Information & communication | 2025 |
| TB Advisor AS | Professional & scientific | 2005 |
| Tenden Brygge AS | Transport & logistics | 1993 |
| Tenden Eigedom AS | Real estate | 2019 |