| Rig Partner Decom AS | Wholesale & retail | 2018 |
| Rig Partner Holding AS | | 2026 |
| Rig Partner P&A Services AS | Professional & scientific | 2022 |
| Rig Partner Project AS | Mining & quarrying | 2018 |
| Ringholm 2 AS | Real estate | 2013 |
| Risabergvegen 5 AS | Real estate | 2025 |
| Risavika Handelseiendom AS | Real estate | 2020 |
| Risavika Havnering 14 AS | Real estate | 2015 |
| Risavika Production AS | Transport & logistics | 2021 |
| Risavika Properties AS | Real estate | 2006 |
| Risnesdrilling AS | Professional & scientific | 2020 |
| RJD Welding & Hardfacing Ltd | Professional & scientific | 2023 |
| RM Consulting AS | Professional & scientific | 2025 |
| Robotvegen Eiendom AS | Real estate | 2025 |
| Robust Rental AS | Administrative & support | 2020 |
| Rodamyr Barnehage SA | Education | 1993 |
| Rogabit AS | Information & communication | 2021 |
| Rogaland Byggtjenester AS | Construction | 2026 |
| Rogaland Element AS | Construction | 2023 |
| Rogaland Renhold AS | Administrative & support | 2021 |
| Roqas Ltd | Administrative & support | 2014 |
| Roth Hotell AS | Financial services | 2016 |
| Rotnem AS | Real estate | 2006 |
| Rotnem Eiendom AS | Real estate | 2012 |
| Rottfisk AS | Agriculture & fishing | 2014 |
| Rs-Maskin AS | Construction | 2022 |
| RSM Invest AS | Construction | 2012 |
| RTN AS | Professional & scientific | 2023 |
| RTR Solutions AS | Professional & scientific | 2013 |
| Rugland Ø&I AS | | 2020 |
| Ryfylke Sjøtransport AS | Transport & logistics | 2020 |
| Røsi AS | Hospitality | 2016 |
| Røsi Eiendom 2 AS | Real estate | 2009 |
| Røsi Eiendom AS | Real estate | 2007 |
| Røsi Invest AS | Transport & logistics | 1998 |
| S&S Baardsen Holding AS | | 2023 |
| Sabertooth AS | Professional & scientific | 2025 |
| Sagen Investering AS | Real estate | 2023 |
| Salberg Fysioterapi AS | Health & social care | 2021 |
| Salmon Solutions AS | Agriculture & fishing | 2023 |
| Samband AS | Professional & scientific | 2022 |
| Sandmoen Holding AS | | 2017 |
| Sandnes Gulv AS | Construction | 2020 |
| Sandnes Maskin AS | Construction | 2009 |
| Sandnes Maskin Holding AS | Administrative & support | 2005 |
| Sandvoll AS | Real estate | 2005 |
| Sar AS | Water & waste | 1987 |
| SBK Base AS | Education | 2015 |
| SBL Finans AS | Wholesale & retail | 2023 |
| Scandi Bygg AS | Construction | 2020 |
| Schlumberger Overseas Nuf | Mining & quarrying | 2010 |
| Scout Cctv AS | Professional & scientific | 2020 |
| SDC Collective AS | Information & communication | 2025 |
| Sea Entek AS | Professional & scientific | 2021 |
| Sec Holding AS | Professional & scientific | 2025 |
| Selskapet Gudme Stad AS | Professional & scientific | 2009 |
| Setor Holding and Consulting AS | Hospitality | 2011 |
| Seva AS | Arts & recreation | 2024 |
| Shell Canada Limited | Professional & scientific | 2012 |
| Shell Chemicals UK Ltd | Manufacturing | 1998 |
| Shell Eastern Trading (Pte) Ltd | Wholesale & retail | 2008 |
| Shell Global Solutions International BV | | 2000 |
| Shell India Markets Private Limited | Administrative & support | 2012 |
| Shell Nigeria Exploration and Production Company Limited | Mining & quarrying | 2012 |
| Shell Trading International Ltd | Wholesale & retail | 2006 |
| Shell U.K. Limited | Professional & scientific | 2015 |
| Siai Holding AS | Mining & quarrying | 2017 |
| Sikt Bolig AS | Real estate | 2020 |
| Silje Holding AS | Financial services | 2005 |
| Sitting Duck Innovation AS | | 2020 |
| Sivilingeniør Roger Daniloff AS | Professional & scientific | 2019 |
| Siwco AS | | 1995 |
| Skailand Invest AS | Real estate | 2005 |
| Skarsten AS | Information & communication | 1998 |
| Skibmannshagen Næring 2 AS | Real estate | 2020 |
| Skiftesvik Holding AS | Real estate | 2022 |
| Skilbrei Petek AS | Mining & quarrying | 2021 |
| Slamre Invest AS | Real estate | 2019 |
| Smarthotel AS | Hospitality | 2011 |
| Smarthotel Eiendom AS | Real estate | 1999 |
| Smarthotel Forus AS | Hospitality | 2003 |
| Smarthotel Oslo AS | Hospitality | 2008 |
| Smarthotel Stavanger AS | Hospitality | 2025 |
| Smarthotel Stavanger Eiendom AS | Real estate | 2025 |
| Smarthotel Tromsø Eiendom AS | Real estate | 2010 |
| Smartyparky AS | Information & communication | 2026 |
| Smooth Bay Invest AS | | 2025 |
| Smyren Invest AS | Financial services | 2011 |
| Snefonna AS | Professional & scientific | 2026 |
| Snøde AS | Real estate | 2016 |
| Sociometri AS | Professional & scientific | 2024 |
| Sola Betong AS | Manufacturing | 1994 |
| Sola Blandeverk AS | Real estate | 1967 |
| Sola Hundesenter AS | Other services | 2014 |
| Sola Invest AS | Real estate | 2000 |
| Sola Parkettsliperi AS | Construction | 2021 |
| Sola Trykkeri & Kopi AS | Manufacturing | 2006 |
| Solakrossen 13 AS | Real estate | 2006 |
| Solution Precision CNC LTC | Professional & scientific | 2023 |
| Sortor AS | Real estate | 2005 |