| Saphi AS | Professional & scientific | 2023 |
| Save Gruppen Da | Wholesale & retail | 2022 |
| Save Solutions AS | Information & communication | 2005 |
| Schenke AS | Wholesale & retail | 2023 |
| Sea Surveillance AS | Manufacturing | 1989 |
| Sea-Hawk Navigation AS | Manufacturing | 2000 |
| Seaman Norway Ans | Wholesale & retail | 1994 |
| Searas AS | Wholesale & retail | 2017 |
| Securinor AS | Administrative & support | 2017 |
| Selvik Byggeservice AS | Construction | 2009 |
| Send Bemanning AS | Administrative & support | 2016 |
| Send Bolig AS | Real estate | 2022 |
| Send Holding AS | Administrative & support | 2020 |
| Senith AS | | 2022 |
| Sentec AS | Manufacturing | 2014 |
| Sentersport Laksevåg AS | Wholesale & retail | 2001 |
| Servicerørleggeren Bergen AS | Construction | 2015 |
| Seth Holding AS | Real estate | 2025 |
| Seth Invest AS | Real estate | 2025 |
| Sga Bygg AS | Construction | 2024 |
| Shearwater Geoassets AS | Professional & scientific | 2019 |
| Shearwater Geoservices AS | Professional & scientific | 2016 |
| Shearwater Geoservices Assets II AS | Administrative & support | 2016 |
| Shearwater Geoservices Assets V AS | Administrative & support | 1988 |
| Shearwater Geoservices Assets Vi AS | Professional & scientific | 2023 |
| Shearwater Geoservices Assets Viii AS | | 2023 |
| Shearwater Geoservices Charterco AS | Administrative & support | 2019 |
| Shearwater Geoservices Holding AS | Professional & scientific | 2016 |
| Shearwater Geoservices Norway AS | Professional & scientific | 2014 |
| Shearwater Invest AS | Administrative & support | 2020 |
| Sidsel & Mari - Lifestyle Da | Health & social care | 2023 |
| Sigurd Reistad Holding AS | | 2023 |
| Simen Vatne Produkter AS | Wholesale & retail | 2025 |
| Simonsviken Kai AS | Transport & logistics | 2017 |
| Sinha Consulting AS | Professional & scientific | 2023 |
| Sipi AS | Real estate | 2016 |
| Sira PSV AS | | 1990 |
| Siro Eiendom AS | Real estate | 2026 |
| Sjofna AS | | 2023 |
| SJS Invest AS | | 2025 |
| SK Bolig Gruppen AS | Professional & scientific | 2025 |
| Skadal Holding AS | | 2020 |
| Skala Rådgivende Ingeniører AS | Professional & scientific | 2014 |
| SKATT1 AS | Professional & scientific | 2010 |
| Skjeret Holding AS | | 2019 |
| SKUR-7 Da | Administrative & support | 1996 |
| SL Service AS | Construction | 2012 |
| Sleipner Eiendom AS | Real estate | 1998 |
| Sleire Mekaniske AS | Manufacturing | 2024 |
| Slipeteknikk AS | Manufacturing | 2003 |
| SLS Elektro AS | Construction | 2024 |
| Smac AS | Manufacturing | 2026 |
| SNEBJØRN37 AS | Financial services | 2015 |
| Soft Ledger AS | Information & communication | 2012 |
| Solsletten Sykehjem AS | Health & social care | 2015 |
| Soltvedt & Co AS | Professional & scientific | 2026 |
| Sotra Gym AS | Arts & recreation | 2026 |
| Spanningnetworks AS | Information & communication | 2024 |
| Spawn VR AS | Information & communication | 2024 |
| Spen AS | Information & communication | 2026 |
| Spicia Mat AS | Wholesale & retail | 2018 |
| Sportservice AS | Wholesale & retail | 2022 |
| SSS Deu AS | | 2015 |
| Status Økonomi AS | Professional & scientific | 2018 |
| Steinsvik Takst AS | Real estate | 2025 |
| Stig Berentsen Trafikkskole AS | Education | 2013 |
| Stillas Og Vedlikehold AS | Construction | 2013 |
| STM Engineering AS | Professional & scientific | 2010 |
| STM Inspection AS | Professional & scientific | 2011 |
| STM Inspeksjon Holding AS | Professional & scientific | 2015 |
| STM Maskinering AS | Manufacturing | 2006 |
| STM Rental AS | Administrative & support | 2017 |
| STM Welding AS | Manufacturing | 2014 |
| Stmi Invest AS | | 2018 |
| Stoltz Bolig AS | Real estate | 2001 |
| Stoltz Eiendom AS | Real estate | 1913 |
| Stoltz Entreprenør AS | Construction | 1998 |
| Stoltz Rehab AS | Construction | 2020 |
| Stoltz Riving & Miljøsanering AS | Construction | 2020 |
| Stord Boligutvikling AS | Real estate | 2012 |
| Storebotn 38 AS | Real estate | 2017 |
| Storebotn 67 AS | Real estate | 2007 |
| Stormlimitless Holding AS | | 2025 |
| Strandlien 12 AS | Real estate | 2025 |
| Studio Essens AS | Professional & scientific | 2024 |
| Studio Vestland AS | Professional & scientific | 2025 |
| Stö Group AS | | 2025 |
| Støldal Eiendom AS | Real estate | 1966 |
| Susan Fosse AS | Wholesale & retail | 2019 |
| Svanevik VVS AS | Construction | 2019 |
| Sweetfood AS | Hospitality | 2024 |
| Sydera.Io Direct AS | Professional & scientific | 2025 |
| Sydera.Io Technologies AS | Information & communication | 2025 |
| Sætre Vin AS | Wholesale & retail | 2023 |
| T-Pettersen Holding AS | | 2013 |
| T. Amundsen Bygg 2 AS | Construction | 2026 |
| T. Amundsen Bygg AS | Construction | 2021 |
| T. Amundsen Topco AS | | 2026 |
| Tabatinga Beach Resort AS | | 2004 |
| Tactical Architect AS | Information & communication | 2026 |