| Rosa Sky Aksjeselskapet | Real estate | 2004 |
| Rosså AS | Agriculture & fishing | 2026 |
| Rosså Fiskebruk Da | Agriculture & fishing | 2013 |
| RRB AS | Administrative & support | 2010 |
| Rybygg AS | Administrative & support | 2005 |
| Ryfylke Betongpumping AS | Construction | 2025 |
| Ryfylke Bilverksted AS | Other services | 1999 |
| Ryfylke Blomst & Hagesenter AS | Agriculture & fishing | 2022 |
| Ryfylke Delikatessen AS | Real estate | 2024 |
| Ryfylke Dykk AS | Agriculture & fishing | 2015 |
| Ryfylke Gjerde AS | Wholesale & retail | 2017 |
| Ryfylke Hage & Park AS | Administrative & support | 2026 |
| Ryfylke Property AS | Real estate | 2003 |
| Ryfylke Prosjekt AS | Real estate | 2021 |
| Ryfylke Rett Vest AS | Financial services | 2016 |
| Ryfylke Skog AS | Agriculture & fishing | 2018 |
| Ryfylke Tomteselskap AS | Real estate | 2006 |
| Ryfylke Trelast Eiendom AS | Real estate | 2006 |
| Ryfylke Trelast Gruppen AS | Construction | 2014 |
| Ryfylkekonsulenten AS | Professional & scientific | 2019 |
| Ryfylkevegen 1970 AS | Real estate | 2018 |
| Ryfylkevegen 1988 AS | Real estate | 2005 |
| Rygr AS | Professional & scientific | 2019 |
| Rygr Økonomi AS | Professional & scientific | 1996 |
| Ryhub AS | Real estate | 1999 |
| Rykos Ans | Information & communication | 1987 |
| Rykraft AS | Professional & scientific | 2020 |
| Rymet AS | Manufacturing | 2019 |
| Rødlandsmyrå Barnehage SA | Education | 2003 |
| Sagaard Invest AS | Financial services | 2005 |
| Sagård Drift AS | Construction | 2022 |
| Sande Dalatun Invest AS | | 2021 |
| Sbsr AS | | 2019 |
| Searov AS | Agriculture & fishing | 2018 |
| Selios AS | | 2024 |
| Semsvegen 51 AS | Real estate | 2016 |
| Sentrumsgården Tau AS | Real estate | 2006 |
| Sentrumsutvikling AS | Real estate | 2017 |
| Servite AS | Information & communication | 2012 |
| SFD Holding AS | Wholesale & retail | 2016 |
| Signal Bidco AS | | 2025 |
| Signal Holdco AS | | 2025 |
| Siho Holding AS | | 2005 |
| Sindre Sørskår Transport AS | Transport & logistics | 2008 |
| Siv Ing J.Lerstøl Holding AS | | 2019 |
| Sjøvegen Håbakk AS | Real estate | 2019 |
| Skjeggebust AS | Hospitality | 2017 |
| Skjersvika Utvikling AS | Real estate | 2005 |
| Sky Golf AS | Administrative & support | 2021 |
| Skövde Industrireparationer AB | Manufacturing | 2010 |
| Slippen Finans AS | Manufacturing | 2020 |
| Smakk AS | | 2024 |
| Snobe Invest AS | Real estate | 2012 |
| Sob Invest AS | | 2019 |
| Solbakk Invest AS | Professional & scientific | 2005 |
| Solid Invest AS | Real estate | 2005 |
| Solskatt AS | Professional & scientific | 2026 |
| Solver P&A AS | Administrative & support | 2005 |
| Sonika Eiendom AS | Real estate | 1991 |
| Soppeland Holding AS | Financial services | 2005 |
| Soø Invest AS | Financial services | 2013 |
| Stavanger Ventil Industri AS | Manufacturing | 1997 |
| Steelwork Tau AS | Manufacturing | 2017 |
| Steinane Holding AS | Professional & scientific | 2005 |
| Strabo AS | Real estate | 2020 |
| Strabo Vi AS | Real estate | 2020 |
| Strand Autosalg AS | Wholesale & retail | 2000 |
| Strand Autoservice AS | Administrative & support | 2013 |
| Strand Beitelag SA | Agriculture & fishing | 1966 |
| Strand Bygg AS | Construction | 2000 |
| Strand Dekksenter AS | Wholesale & retail | 2007 |
| Strand Eiendomsutvikling AS | Real estate | 1999 |
| Strand Eigendom AS | Real estate | 2020 |
| Strand Forskaling AS | Construction | 2017 |
| Strand Forskaling Eiendom AS | Real estate | 2020 |
| Strand Gruppen AS | Wholesale & retail | 2012 |
| Strand Gård Ryfylke AS | Wholesale & retail | 2021 |
| Strand Hagesenter AS | Wholesale & retail | 2020 |
| Strand Teltutleie AS | Administrative & support | 2025 |
| Strand Tre-Palle Solution AS | Wholesale & retail | 2022 |
| Strandaren AS | Construction | 2015 |
| Suko Eiendom AS | Real estate | 2007 |
| Svaberge AS | Real estate | 2005 |
| Svanholmen 7 AS | Real estate | 1995 |
| Svanholmen Lagerbygg AS | Real estate | 2017 |
| Sørskår Holding AS | Real estate | 2005 |
| Sørskår Mekaniske Verksted AS | Manufacturing | 1989 |
| Søss Holding AS | | 2025 |
| T Dalen Invest AS | | 2026 |
| Taste Holding AS | | 2025 |
| Tau Auto AS | Other services | 2014 |
| Tau Autonomy Center AS | Real estate | 2020 |
| Tau Autosenter AS | Wholesale & retail | 2005 |
| Tau B6 I AS | Real estate | 2011 |
| Tau Eiendom Holding AS | Real estate | 2005 |
| Tau Fysioterapi Og Trening AS | Real estate | 2017 |
| Tau Holding AS | | 2024 |
| Tau Mek Eiendom AS | Manufacturing | 2013 |
| Tau Mek Holding AS | Manufacturing | 2020 |
| Tau Mek Verksted AS | Manufacturing | 1995 |