| Smith Holding AS | | 2024 |
| Smzf Holding AS | Real estate | 2022 |
| Snilstveit Og Eilertsen AS | Construction | 1997 |
| Snorre-Be Holding AS | Information & communication | 2013 |
| Sofacompany Norge AS | Wholesale & retail | 2014 |
| Sok Holding AS | | 2020 |
| Sola M600 AS | Administrative & support | 2021 |
| Solastrandvegen AS | | 2024 |
| Soldeling AS | Professional & scientific | 2022 |
| Solem Digital Consulting AS | Professional & scientific | 2024 |
| Solfjell AS | | 1993 |
| Solid Bygg Stavanger AS | Construction | 2016 |
| Solid Bygg Up AS | Construction | 2022 |
| Solodden Invest AS | Professional & scientific | 2010 |
| Solskinn Investering AS | | 2005 |
| Solstø AS | Real estate | 2006 |
| Sommerbakken Invest AS | | 2023 |
| Sori AS | | 2024 |
| Sotto AS | Hospitality | 2026 |
| Spile AS | | 2022 |
| Spjell AS | | 2020 |
| Sport Office AS | Professional & scientific | 2022 |
| Sporty Intersport AS | Wholesale & retail | 1991 |
| Springmotion AS | Information & communication | 2006 |
| SSB Energivekst AS | Financial services | 2007 |
| Stairs AS | | 2016 |
| Stall Solheim AS | Agriculture & fishing | 2026 |
| Stall Vest Sportshest AS | Education | 2006 |
| Stavanger Hageservice AS | Administrative & support | 2014 |
| Stavanger Kapitalforvalting Invest 2 AS | Professional & scientific | 2020 |
| Stavanger Kapitalforvaltning AS | Professional & scientific | 2005 |
| Stavanger Plastikkirurgi AS | Health & social care | 2009 |
| Stavanger Radiocentral AS | Wholesale & retail | 1978 |
| Stavanger Revmatologiske Senter AS | Health & social care | 2021 |
| Stavanger Shipbrokers AS | Transport & logistics | 2015 |
| Stavanger Vask AS | Administrative & support | 2026 |
| Stavsand Invest AS | Wholesale & retail | 2005 |
| Stecam Management AS | Information & communication | 2018 |
| Stein På Stein AS | Financial services | 2005 |
| Steinsholm Invest AS | | 2021 |
| Stenersen Risk Management AS | Professional & scientific | 2026 |
| Stensland Pensjon Og Finans Ans | | 1990 |
| Stensro Gård AS | | 2023 |
| Stevens Og Sture Holding AS | | 2025 |
| Stian Helmichsen AS | Wholesale & retail | 2004 |
| Stilar Holding AS | | 2022 |
| Stompas Holding AS | Administrative & support | 2021 |
| Stora Holding AS | | 2025 |
| Storenup Invest AS | Financial services | 2014 |
| Storhaug Mykvare AS | Information & communication | 2020 |
| Storhaugveien AS | Real estate | 2022 |
| Stortind Holding AS | Financial services | 2008 |
| STR Eiendom 2 AS | Real estate | 2024 |
| Straen Interiør AS | Wholesale & retail | 2011 |
| Studio Saga AS | Wholesale & retail | 2026 |
| Stuenisj AS | Financial services | 2011 |
| Stvg Rentals AS | Hospitality | 2026 |
| Støla Drift AS | Agriculture & fishing | 2023 |
| Subsea Consulting AS | Professional & scientific | 1993 |
| Sulatho Invest AS | Real estate | 2015 |
| Sundal Næringseiendom Da | Real estate | 2009 |
| Sunde Entreprenor AS | Construction | 2024 |
| Sunde Estate AS | Real estate | 2003 |
| Sunde Handel AS | Wholesale & retail | 2006 |
| Sunde Invest AS | Real estate | 2000 |
| Sunde Pizza AS | Hospitality | 2025 |
| Sutenails AS | Other services | 2024 |
| Svane AS | | 2023 |
| Svartskjæret Invest AS | Financial services | 2018 |
| Sven Invest AS | Wholesale & retail | 2005 |
| Sverd AS | | 2026 |
| Svett AS | Other services | 2026 |
| Swarfix AS | Professional & scientific | 2014 |
| Systemconsult AS | Administrative & support | 1978 |
| Sætre Holdings AS | | 2019 |
| Sønnikconsult AS | Education | 2024 |
| Sørmarken AS | | 2024 |
| T. Idsøe Eiendom AS | Real estate | 2018 |
| T.I. Sunde AS | Agriculture & fishing | 2020 |
| T.U. Holding AS | | 2012 |
| Talentra AS | Administrative & support | 2026 |
| Tananger Offshore AS | Transport & logistics | 1997 |
| Tannlege Nguyen AS | Health & social care | 2021 |
| Tannlege Poyan Miralimohammadi AS | Health & social care | 2026 |
| Tano AS | Health & social care | 2021 |
| Tano Investerings AS | Health & social care | 2025 |
| Taraldset Invest AS | Real estate | 2021 |
| Tasic Holding AS | | 2026 |
| Tav Maritime AS | | 2026 |
| Tbak AS | Financial services | 2017 |
| TCT Holding AS | Real estate | 2010 |
| Tebe Finans AS | Real estate | 2000 |
| Tec Resource AS | Professional & scientific | 2007 |
| Tekho AS | Transport & logistics | 2015 |
| Teknisk Invest AS | Construction | 2005 |
| Teknisk Ventilasjon AS | Construction | 1999 |
| Telluric Geo Consultancy AS | Professional & scientific | 2019 |
| Tenk Eiendom AS | Real estate | 2024 |
| Tensione AS | | 2026 |
| Teppe Og Møbelutleie AS | Administrative & support | 1998 |