| Rikeloftet AS | Financial services | 2018 |
| Roger's Invest AS | Financial services | 2018 |
| Rognaldsen Invest AS | Wholesale & retail | 2005 |
| Rognaldsvåg Vassverk SA | Water & waste | 2008 |
| Roser & Interiør AS | Wholesale & retail | 2017 |
| Rosmarin AS | Wholesale & retail | 1994 |
| RSF Eiendom AS | Real estate | 2020 |
| RSF Holding AS | Real estate | 2020 |
| Ruben Solheim AS | Administrative & support | 2017 |
| Rune Sandvik AS | Construction | 1998 |
| Råd & Regnskap Holding AS | Professional & scientific | 2006 |
| Rørleggerservice Florø AS | Construction | 1993 |
| S Madsen AS | | 2023 |
| S.Eide Invest AS | Other services | 2023 |
| S.K.S Holding AS | Construction | 2017 |
| Safari Engros AS | Wholesale & retail | 2005 |
| Safe Storage AS | Real estate | 2018 |
| Saga Catering Og Bemanning AS | Hospitality | 2024 |
| Saga Fjordbase AS | Transport & logistics | 1999 |
| Sagarmatha AS | Financial services | 2016 |
| Salt Arkitekter AS | Professional & scientific | 2016 |
| Salt Utvikling AS | Real estate | 2019 |
| Sameiet Strandgata 33 Da | Real estate | 2018 |
| Sandvik Maskin AS | Wholesale & retail | 2021 |
| Sanvest AS | Real estate | 1989 |
| Sao Invest AS | Professional & scientific | 2005 |
| Savanna Norge Avd Oslo AS | Other services | 2024 |
| Scms Holding AS | Mining & quarrying | 2018 |
| Sektor AS | Real estate | 2007 |
| Semi AS | Real estate | 2018 |
| Semi Invest AS | | 2020 |
| Sentrums-Gården AS | | 2020 |
| Sigdestad Holding AS | Financial services | 2005 |
| Sikkerhet & Miljø Da | Wholesale & retail | 1990 |
| Sikring, Drift Og Utvikling AS | Information & communication | 2005 |
| Sinus AS | Professional & scientific | 1984 |
| SJ Utvikling AS | Real estate | 2018 |
| Sjøkanten Florø AS | Real estate | 2012 |
| Sjøtjenester Florø AS | Agriculture & fishing | 2017 |
| Skaar Norway AS | Wholesale & retail | 2004 |
| Skanor AS | Wholesale & retail | 2005 |
| Skipskraft AS | Professional & scientific | 2021 |
| Skorpen Invest AS | | 2008 |
| Slakteriet AS | Manufacturing | 2011 |
| Slakteriet Eiendom AS | Manufacturing | 2011 |
| Slakteriet Holding AS | Manufacturing | 2011 |
| SLR Investering AS | | 2025 |
| Smarter Invest AS | Information & communication | 2021 |
| Smbj AS | Agriculture & fishing | 2011 |
| Snorre Mat AS | | 2001 |
| Soaar AS | Wholesale & retail | 2023 |
| Solborg Invest AS | | 2022 |
| Soldalen Besøksgård AS | Health & social care | 2017 |
| Solheim Dagligvare AS | Wholesale & retail | 2022 |
| Solheim Diesel AS | Wholesale & retail | 1992 |
| Solheim Diesel Holding AS | Wholesale & retail | 2007 |
| Solheim Vassverk SA | Water & waste | 2013 |
| Solvens AS | Professional & scientific | 2020 |
| Solvåg Holding AS | | 2025 |
| Special Holding AS | | 2024 |
| Spenst Florø AS | Arts & recreation | 2015 |
| Ssol Invest AS | | 2022 |
| Stabben Holding AS | Financial services | 2015 |
| Stabben Ungdom Ans | Education | 1995 |
| Staro Tech AS | Manufacturing | 2010 |
| Stavang Invest AS | | 2023 |
| Stavang Sentrum AS | Real estate | 2021 |
| Steinbiten AS | Agriculture & fishing | 2005 |
| Steinebu AS | | 2022 |
| Stigfish AS | Wholesale & retail | 2012 |
| Stikning AS | Professional & scientific | 2017 |
| Storelva Kraftverk AS | Energy | 2022 |
| Storhall I Vest AS | Education | 2023 |
| Storåsen Utbygging AS | Real estate | 2022 |
| Stranda Eigedom AS | Real estate | 2023 |
| Strandavegen 2-4 AS | Real estate | 2012 |
| Strandavegen 21 AS | Real estate | 2009 |
| Strandgata Sport AS | Wholesale & retail | 2012 |
| Strandhjørnet AS | Real estate | 1993 |
| Strigla AS | Other services | 2015 |
| Strupen Energi AS | Energy | 1998 |
| Strømmen Bygg & Eiendom AS | Construction | 2025 |
| Strømsnes Eiendom AS | Real estate | 1994 |
| Strømsnes Invest AS | Real estate | 1996 |
| Studio Hår AS | Other services | 2003 |
| Sundal Kompetanse AS | Education | 2021 |
| Sundal Maskin Og Opplæring AS | Construction | 2016 |
| Sunnavind AS | Wholesale & retail | 2017 |
| Sunnfjord Apotek Stryn AS | Wholesale & retail | 2013 |
| Sunnfjord Bilutleige AS | Administrative & support | 2019 |
| Sunnfjord Byggservice Nuf | Construction | 2011 |
| Sunnfjord Hestesportssenter AS | Arts & recreation | 2007 |
| Sunnfjord Invest AS | Real estate | 2001 |
| Sunnfjord Regnskap AS | Professional & scientific | 2017 |
| Supply Chain Management Services AS | Mining & quarrying | 2012 |
| Svardal Invest AS | | 2022 |
| Synsenteret Florø AS | Wholesale & retail | 1990 |
| Systemintegrering AS | Wholesale & retail | 2017 |
| Såta AS | Financial services | 2016 |
| Sæle Holding AS | | 2025 |