| Secant Holding AS | Professional & scientific | 2018 |
| Secant Toppholding AS | Professional & scientific | 2021 |
| Selmers Holding AS | | 2021 |
| Semha AS | Financial services | 2015 |
| Semha Consultants AS | Professional & scientific | 2026 |
| Sentrum Bar AS | Hospitality | 2017 |
| Serigstad AS | Manufacturing | 2000 |
| Serigstad Blikk Og Kobber AS | Construction | 1987 |
| Serigstad Invest AS | | 2020 |
| Serigstad Utleie AS | Administrative & support | 1996 |
| Sifcon AS | Professional & scientific | 1997 |
| Simo Eiendom AS | Real estate | 2026 |
| Simone AS | Wholesale & retail | 2008 |
| Singh Restaurant AS | Hospitality | 2019 |
| Sirdal Highland AS | Real estate | 2020 |
| Siri Stueland Invest AS | Financial services | 2011 |
| SK Berge Holding AS | Real estate | 2023 |
| Skambankt Ans | Arts & recreation | 2005 |
| Skibmannshagen Næring 1 AS | Real estate | 2020 |
| Skitt Og Skjelett AS | Professional & scientific | 2023 |
| Skjæveland Industrier AS | Manufacturing | 2014 |
| Skogly & Høyen Holding AS | Real estate | 2019 |
| Skulegata 4 AS | Real estate | 2008 |
| Skvadronveien 21 AS | Real estate | 2015 |
| Skytten Hotelldrift AS | Financial services | 2008 |
| SL Mekaniske AS | Manufacturing | 2004 |
| Sle 43 AS | Real estate | 2022 |
| Sle Eiendom AS | Real estate | 2017 |
| Sle Jærveien 508 AS | Real estate | 2011 |
| Sle Nærbø 2 AS | Real estate | 1987 |
| Sle Nærbø AS | Real estate | 2006 |
| Sle Skjoldavegen AS | Real estate | 2008 |
| Sle Smievegen 8 AS | Real estate | 2011 |
| Sle Sør AS | Real estate | 2019 |
| Sle Trekanten AS | Real estate | 2015 |
| Sle Verdalen AS | Real estate | 2008 |
| Slemmestad Boligutvikling AS | Real estate | 2016 |
| Slip & Spesialverktøy AS | Wholesale & retail | 2009 |
| Slip AS | Professional & scientific | 2006 |
| SLM Holding AS | Manufacturing | 2008 |
| Smaken Av Landet AS | Hospitality | 2021 |
| Smiå Cafè AS | Hospitality | 2023 |
| Smud Invest AS | Professional & scientific | 2022 |
| Snør AS | Real estate | 2008 |
| Solberg Eiendom I AS | Real estate | 2009 |
| Solberg Kvartalet AS | Real estate | 2016 |
| Solead AS | Wholesale & retail | 2015 |
| Soln AS | Wholesale & retail | 2022 |
| Solvik-Olsen AS | Professional & scientific | 2018 |
| Solvind Åsen AS | Energy | 2011 |
| Some Holding AS | | 2025 |
| Sopsahl AS | Real estate | 2025 |
| Sopå Holding AS | | 2025 |
| Sorgenfri Invest AS | | 2019 |
| Specter AS | | 2020 |
| Spectre AS | Professional & scientific | 2019 |
| Spennarmering Norge AS | Construction | 2022 |
| Spesialpedagog AS | Information & communication | 2017 |
| Spesialtakst AS | Professional & scientific | 2019 |
| Spiritualgardening AS | Wholesale & retail | 2024 |
| Sport & Grønt AS | Arts & recreation | 2016 |
| Sprinktec AS | Construction | 2020 |
| Spødarbakken Barnehage SA | Education | 2004 |
| ST. Anton Holding AS | | 2005 |
| ST.18 Invest AS | | 2026 |
| Stadion Bowling AS | Arts & recreation | 2001 |
| Stall RB AS | Arts & recreation | 2012 |
| Stapnes Eiendom AS | Real estate | 2020 |
| Starquest AS | Information & communication | 2025 |
| Startblokka AS | Professional & scientific | 2024 |
| Steelwork AS | Manufacturing | 1996 |
| Steingard Holding AS | Professional & scientific | 2021 |
| Steinsland & Co AS | Agriculture & fishing | 2005 |
| Steinsland & Co Eiendom AS | Agriculture & fishing | 2020 |
| Steinsland AS | Agriculture & fishing | 2023 |
| Steinvodl Samdrift Da | Agriculture & fishing | 2003 |
| Stensland AS | Real estate | 2014 |
| STH AS | Real estate | 2015 |
| Stiftelsesgata 1 AS | Real estate | 2024 |
| Stikningsservice AS | Professional & scientific | 2012 |
| Stilbo Møbler AS | Wholesale & retail | 2005 |
| Stines Frisør AS | Other services | 2024 |
| Stokka Holding AS | | 2025 |
| Storbilvask 24/7 AS | Other services | 2008 |
| Storgata 15 Bryne AS | Real estate | 1997 |
| Storgata 7 Bryne AS | Real estate | 2021 |
| Storgata Næringsbygg AS | Real estate | 2005 |
| Stra Holding AS | | 2024 |
| Stuefoss AS | Financial services | 2011 |
| Stueland Eiendom AS | Real estate | 1981 |
| Stålteknikk AS | Manufacturing | 1987 |
| Sud Invest AS | | 2026 |
| Sumsar & Sungam AS | Financial services | 2015 |
| Svein & Trond Hodne AS | Real estate | 2009 |
| Svein Vold Holding AS | Wholesale & retail | 2005 |
| Sven Hatteland AS | | 2021 |
| Svennevik AS | Real estate | 2013 |
| Sverdrupsgate 1 AS | Real estate | 2018 |
| Svertingstad AS | Real estate | 2012 |
| Svertingstad Bygget AS | Real estate | 2014 |