| Stene Investering AS | Water & waste | 2024 |
| Stene Renovasjon AS | Administrative & support | 2025 |
| Stentøimagasinet AS | Wholesale & retail | 1981 |
| Step Oil & Gas AS | Professional & scientific | 2022 |
| Stetind Capital AS | Real estate | 2018 |
| Stevnebøker AS | Professional & scientific | 2019 |
| Stian Karlsen & Morten Hinna Draughting Da | Professional & scientific | 1995 |
| Stian Vikeså Invest AS | Financial services | 2011 |
| Stigen Holding AS | | 2020 |
| Stigma Holding AS | Real estate | 2006 |
| Stili Kapital AS | | 2026 |
| Sto AS | Wholesale & retail | 2007 |
| Stokkamyrveien 18 AS | Real estate | 2006 |
| Stokkamyrveien 22 AS | Real estate | 2006 |
| Stokkamyrveien 30 AS | Real estate | 2012 |
| Stokkan Film AS | Information & communication | 2022 |
| Stokkeland Utvikling AS | Real estate | 2017 |
| Stolac Holding AS | | 2023 |
| Stolt Bolig AS | Construction | 2010 |
| Stolt Prosjekt AS | Real estate | 2010 |
| Stolt Rebygg AS | Construction | 2016 |
| Storeknut AS | | 2019 |
| Storemyrlia 13 Lager 25 AS | Real estate | 2026 |
| Storgata 34 Invest AS | Real estate | 2016 |
| Storgata 35 Eiendom AS | Real estate | 2022 |
| Storgata 57 Sandnes AS | Real estate | 2021 |
| Storhaug Bygg AS | Construction | 2007 |
| Stories by Codestories AS | Professional & scientific | 2026 |
| Storjordet Invest AS | | 2024 |
| Storlom AS | Real estate | 2006 |
| Storm Aqua AS | Professional & scientific | 2015 |
| Storm Invest AS | Real estate | 2021 |
| Stormsvale AS | | 2018 |
| STP Holding AS | Manufacturing | 2018 |
| Straen Brygge AS | Real estate | 2007 |
| Straen Rådgivning AS | Professional & scientific | 1974 |
| Strand Hagenes AS | Arts & recreation | 2025 |
| Strand Opportunities Holding AS | | 2025 |
| Strandgata 4B AS | Real estate | 2021 |
| Strandgaten 103 AS | Real estate | 1999 |
| Strandgaten 111-113 AS | Real estate | 2005 |
| Strandgaten 15 AS | Real estate | 2023 |
| Strandgatens Eiendomsselskap AS | Professional & scientific | 1982 |
| Strategica AS | Professional & scientific | 2024 |
| Strauss Reklame AS | Professional & scientific | 2025 |
| Straydogs Property 94 AS | Real estate | 2021 |
| Streamsolution AS | Information & communication | 2020 |
| Strikkemani AS | Wholesale & retail | 2019 |
| Strikkemekka Holding AS | Wholesale & retail | 2022 |
| Strom AS | | 2025 |
| Strops Bulc AS | Financial services | 2007 |
| Strømnes Holding AS | Financial services | 2007 |
| Studio 44 AS | Professional & scientific | 2013 |
| Studio Alf Sandnes AS | Other services | 2025 |
| Studio Haak AS | Wholesale & retail | 2025 |
| Studio Tid AS | Professional & scientific | 2021 |
| STUDIO88 AS | Other services | 2025 |
| Stuerent AS | Administrative & support | 2015 |
| STV Holding AS | Professional & scientific | 2023 |
| Styr AS | Real estate | 2020 |
| Stølsvik Utbygging Va AS | Water & waste | 2022 |
| Stølsvik Va SA | Water & waste | 2021 |
| Støtte AS | Information & communication | 2020 |
| Støv Keramikk AS | Manufacturing | 2021 |
| Støyb AS | Construction | 2021 |
| Subsea & Topside Consultant AS | Professional & scientific | 2013 |
| Substrata Infra AS | Information & communication | 2026 |
| Summarum AS | Professional & scientific | 2013 |
| Summit Solutions AS | Construction | 2020 |
| Summit&Ride Adventures AS | Administrative & support | 2026 |
| Summont AS | Professional & scientific | 2012 |
| Sumo Sandnes AS | Hospitality | 2020 |
| Sunde & Helliesen Eiendom AS | Real estate | 2023 |
| Sunde Bolig AS | Real estate | 2017 |
| Sundvor VVS AS | Construction | 2001 |
| Sunfarm Music AS | Arts & recreation | 2015 |
| Sunmar Invest AS | | 2022 |
| Super Pizza Ganddal AS | Hospitality | 2024 |
| Superior Energy Services (Norway) AS | Mining & quarrying | 2012 |
| Sureclean AS | Administrative & support | 2009 |
| Surf Labs AS | Information & communication | 2021 |
| Sursum Invest AS | | 2023 |
| Suveren Invest AS | | 2021 |
| Svaboe Invest AS | Financial services | 2005 |
| Svaboe Maskin AS | Administrative & support | 2021 |
| Svaludden AS | | 2025 |
| Svanhild Vestbøstad AS | Wholesale & retail | 2007 |
| Svanholmen 8 AS | Real estate | 2006 |
| Svanholmen Eiendom AS | Real estate | 1997 |
| Svebb Eiendom AS | Real estate | 2014 |
| Svein Eidesen AS | Real estate | 2018 |
| Svein Heskje Invest AS | Real estate | 2012 |
| Sveins Rørservise AS. AS | Construction | 2023 |
| Sveinsvoll Holding AS | Other services | 2018 |
| Sveisesentralen AS | Manufacturing | 2021 |
| Sveiseteknikk AS | Manufacturing | 2012 |
| Svela Bygg AS | Construction | 2016 |
| Svela Invest AS | Construction | 2005 |
| Svemorka 5 AS | | 2025 |
| Svendsen & Thu Bygg AS | Construction | 2021 |