| Rebekka AS | | 2020 |
| Rebloc Norge AS | Manufacturing | 2016 |
| Reelestate AS | Real estate | 2025 |
| Regnskap I Sentrum AS | Professional & scientific | 2008 |
| Reik AS | Professional & scientific | 2026 |
| Reki AS | Real estate | 1973 |
| Reklamehuset Fuglseth AS | Manufacturing | 2010 |
| Rengjøringssentralen AS | Administrative & support | 1997 |
| Restaureringsverkstedet AS | Other services | 2023 |
| Richard Thu AS | Wholesale & retail | 2004 |
| RL Investering AS | | 2025 |
| Roberg Bistro AS | Hospitality | 2026 |
| Robåten Fus Barnehage AS | Education | 2018 |
| Rodvelt Transport AS | Transport & logistics | 2021 |
| Rogaland Bildeler AS | Wholesale & retail | 1999 |
| Roger Bang Eie Holding AS | | 2016 |
| Rogstad Montasje AS | Construction | 2016 |
| Rols AS | Wholesale & retail | 2006 |
| Roselin Gård AS | Agriculture & fishing | 2021 |
| Roy Bygg AS | Construction | 2014 |
| RS Bygg Egersund AS | Construction | 2010 |
| RS Bygg Eiendom AS | Real estate | 2024 |
| RS Kompetanse AS | Construction | 2016 |
| Ryggen Invest AS | Financial services | 2018 |
| Ryttervik AS | Real estate | 2004 |
| Ryttervik Eiendom AS | Real estate | 2017 |
| S&K Invest AS | Real estate | 2026 |
| Safe Skadedyrservice AS | Administrative & support | 2021 |
| Samslått Auto AS | Other services | 2013 |
| Samslått Eiendom AS | Real estate | 2013 |
| Sandbakkane Invest AS | | 2020 |
| Sandbakkveien AS | Construction | 2004 |
| Sassion Invest AS | | 2005 |
| SBF Holding AS | Real estate | 2014 |
| Scandinavian Health & Performance AS | | 2011 |
| Seaprod AS | Administrative & support | 2018 |
| Seconda AS | | 2026 |
| Segleien AS | Professional & scientific | 2021 |
| Seglem Invest AS | Financial services | 2005 |
| Seleggt Norway AS | Professional & scientific | 2023 |
| Senteret AS | Administrative & support | 2011 |
| Sentrum Eiendom AS | Real estate | 1989 |
| Sentrumbygg AS | Construction | 2001 |
| Sentrumbygg Eiendom AS | Real estate | 2010 |
| Ser Holding AS | Real estate | 2008 |
| Ses Eiendom & Holding AS | Wholesale & retail | 2014 |
| SFJ Eiendom AS | Real estate | 2022 |
| SFJ Eiendom GB5 AS | Real estate | 2022 |
| SFJ Eiendom JR54 AS | Real estate | 2022 |
| Shanghai House AS | Hospitality | 2010 |
| Shelby AS | Wholesale & retail | 2016 |
| Shelby Eiendom AS | Real estate | 1975 |
| Shelby Teknikk AS | Wholesale & retail | 1998 |
| Simasi Invest AS | | 2026 |
| Singerbutikken Ans | Wholesale & retail | 1983 |
| Sisu AS | Wholesale & retail | 1980 |
| Sjarkveien Holding AS | Real estate | 2013 |
| Sjusmå AS | Wholesale & retail | 2026 |
| Skaaland Tannhelse AS | Health & social care | 2021 |
| Skaara AS | Professional & scientific | 2024 |
| Skaara Holding AS | Financial services | 2016 |
| Skaara Spesialvinduer AS | Wholesale & retail | 2005 |
| Skadberg AS | | 2026 |
| Skadberg Camping AS | Hospitality | 2011 |
| Skadberg Hansen AS | Wholesale & retail | 1970 |
| Skadberg-Hansen Håndverk AS | Construction | 2024 |
| Skandsen Bygg AS | Construction | 2014 |
| Skandsen Eiendom AS | Real estate | 2018 |
| Skandsen Holding AS | Real estate | 2003 |
| Skandsen Utvikling AS | Real estate | 2013 |
| Skaret Eiendom Egersund AS | Real estate | 2011 |
| Skattekisten Kulturbarnehage AS | Education | 2008 |
| Skibstad Sveis AS | Manufacturing | 2021 |
| Skien Ølutsalg AS | Wholesale & retail | 2019 |
| Skina AS | Construction | 2018 |
| Skipsmodeller AS | Manufacturing | 2013 |
| Skjelbred Holding AS | Financial services | 2008 |
| Skogberg AS | Real estate | 2021 |
| Skoll AS | Energy | 2023 |
| Skryd AS | Arts & recreation | 2021 |
| Sleveland Maskin AS | Construction | 2025 |
| SLICK9 AS | Manufacturing | 2026 |
| Smart Eiendom Egersund AS | Wholesale & retail | 2002 |
| Smart Eiendom Rogaland AS | Real estate | 2016 |
| Smil AS | Health & social care | 2005 |
| Smuget Frisør Egersund AS | Other services | 2014 |
| Snart Helg AS | | 2024 |
| Snekker Andersen & Co AS | Administrative & support | 2025 |
| Snøfall AS | | 2021 |
| Snøskred Holding AS | | 2025 |
| Sokndalsveien 25 Eiendom AS | Real estate | 2020 |
| Soliden AS | Financial services | 2005 |
| Solsikken Blomster Ans | Wholesale & retail | 1997 |
| Spa Clinic AS | Other services | 2008 |
| Spenning AS | Construction | 2006 |
| Spinning Energy AS | Professional & scientific | 2021 |
| SPL Eiendom AS | Real estate | 2020 |
| Squatina AS | Education | 2015 |
| Squeezy AS | Wholesale & retail | 2011 |
| SS Eiendom Og Utleie AS | Real estate | 2019 |