| Røynebergsletta 33 AS | Real estate | 2007 |
| Røynebergsletta Invest AS | Construction | 2016 |
| Røynebergsletta Kapital AS | Professional & scientific | 2016 |
| Røys Invest AS | Financial services | 2018 |
| S B Eiendom AS | Professional & scientific | 1989 |
| S&D Holding AS | Real estate | 2021 |
| S&L Consulting Norway AS | Professional & scientific | 2019 |
| S&W Eiendom AS | Real estate | 2023 |
| S&W Holding AS | Real estate | 2023 |
| S. W. Kristiansen Holding AS | | 2024 |
| S.Chr.Haaland AS | Financial services | 2013 |
| S.Lunde Invest AS | | 2024 |
| S2 Eiendom AS | Real estate | 2015 |
| S2E Transformation Inc. | Professional & scientific | 2020 |
| SA Skåland AS | Real estate | 2006 |
| Saadiya Gruppen AS | Hospitality | 2020 |
| Saamand AS | Real estate | 2004 |
| Saav AS | Professional & scientific | 2025 |
| Sabi Sushi Pedersgata AS | Hospitality | 2011 |
| Sabrura Herbarium AS | Hospitality | 2020 |
| Saddle AS | Information & communication | 2025 |
| Sael Consulting AS | Professional & scientific | 2014 |
| Saes AS | Professional & scientific | 2024 |
| Safe Sound Audio AS | Wholesale & retail | 2011 |
| Safe Trafikkskole AS | Education | 2004 |
| Safe-Stillas AS | Administrative & support | 2016 |
| Safetemp AS | Professional & scientific | 2016 |
| SAFETY1 AS | Administrative & support | 2021 |
| Safiren AS | Real estate | 2022 |
| Safran Software Solutions AS | Information & communication | 1997 |
| Safteriet AS | Manufacturing | 2011 |
| Saga Green AS | | 2021 |
| Saga Offshore Partners AS | Mining & quarrying | 2013 |
| Saga Phønix AS | Real estate | 2025 |
| Saga Prosjekter AS | Real estate | 2004 |
| Saga Sales & Rental AS | Administrative & support | 2025 |
| Sagabok AS | Information & communication | 2023 |
| Sagaholm Holding AS | | 2019 |
| Sagen Bolig AS | Real estate | 2023 |
| Sagen Bolig Eiendom AS | Real estate | 2023 |
| Sagen Bolig Prosjekt AS | Real estate | 2023 |
| Sagen Bolig Utleie AS | Real estate | 2023 |
| Sagen Bygg AS | Construction | 1991 |
| Sagen-Helgø AS | | 2021 |
| Sagland Bilverksted AS | Other services | 1994 |
| Sahe Holding AS | | 2021 |
| Sahin Transport AS | Transport & logistics | 2026 |
| Saint Etienne AS | Information & communication | 2001 |
| Saipem Drilling Norway AS | Mining & quarrying | 2012 |
| Saipem Limited Norway Branch Nuf | Mining & quarrying | 2011 |
| Saipem Norge AS | Mining & quarrying | 2010 |
| SAIPEM S P A filial av utenlandsk foretak NUF | Mining & quarrying | 1995 |
| Sake Investering AS | | 2022 |
| Sakkestad Kapital AS | | 2021 |
| Sakki AS | Wholesale & retail | 2018 |
| Salikatt Bryggeri AS | Manufacturing | 2015 |
| Salkin AS | Real estate | 2011 |
| Salmesykkel AS | Arts & recreation | 2021 |
| Salmomar AS | Professional & scientific | 2020 |
| Salmon Island AS | Agriculture & fishing | 2021 |
| Salmon Island Land AS | Agriculture & fishing | 2024 |
| Salomonsen AS | Wholesale & retail | 1984 |
| Salong Asena AS | Wholesale & retail | 2016 |
| Salong Øst AS | Other services | 2022 |
| Salora Style AS | Wholesale & retail | 2026 |
| Salt Capital AS | Financial services | 2016 |
| Salt Value AS | Financial services | 2016 |
| Salvågergata 7 AS | Real estate | 1992 |
| Sam Knitdesign Da | Manufacturing | 2006 |
| Sam Tufte AS | Wholesale & retail | 2008 |
| Sampi Renewables Holding AS | | 2025 |
| Samsen AS | | 2025 |
| Samskaping AS | Hospitality | 2018 |
| Samstø AS | Information & communication | 2005 |
| Samuelsen.Samuelsen AS | Construction | 2018 |
| Samuelsen.Samuelsen AS | Construction | 2025 |
| Samvirkende Fagforeninger Stavanger SA | Other services | 1894 |
| San Sabai Thai Massasje AS | Other services | 2024 |
| Sandal Dagligvare AS | Wholesale & retail | 2010 |
| Sandalsbakken Invest AS | Financial services | 2005 |
| Sandbox Invest AS | Information & communication | 2006 |
| Sandeigaten 31 Seksjon 1 Da | Real estate | 2006 |
| Sandmo Ocean Services AS | Administrative & support | 2026 |
| Sandmoen Tomteutvikling AS | Real estate | 2011 |
| Sandnes Automasjon & Installasjon AS | Construction | 1992 |
| Sandnes Bokhandel AS | Wholesale & retail | 2018 |
| Sandnes Byutvikling AS | Real estate | 2014 |
| Sandnes Byutvikling Bolig AS | Real estate | 2017 |
| Sandnes Byutvikling Næring BFK2 AS | Real estate | 2017 |
| Sandnes Byutvikling Næring BFK3 AS | Real estate | 2017 |
| Sandnes Byutvikling Næring BFK4 AS | Real estate | 2017 |
| Sandnes Byutvikling Næring BFK5 AS | Real estate | 2017 |
| Sandnes Byutvikling Næring S3 AS | Real estate | 2017 |
| Sandnes Byutvikling Næring S4 AS | Real estate | 2017 |
| Sandnes Byutvikling Parkering S3 AS | Real estate | 2017 |
| Sandnes Helsepark AS | Real estate | 2018 |
| Sandnes Investering AS | Financial services | 1995 |
| Sandnes Miljøtaxi AS | Transport & logistics | 2021 |
| Sandnesavisen Nuf | Information & communication | 2007 |
| Sandsgaard Eiendom AS | Real estate | 2011 |