| Spekulatius Invest AS | Financial services | 2016 |
| Spelhaugen Næringspark AS | Real estate | 1994 |
| Spello AS | Information & communication | 2020 |
| Spesialist I Periodonti Kathrin Beyer AS | Health & social care | 2025 |
| Spesialist Manuellterapi Og Idrettsfysioterapi AS | Health & social care | 2015 |
| Spesialistgruppen Gastro AS | Health & social care | 1998 |
| Spesialistgruppen Hjerte AS | Health & social care | 1995 |
| Spilde Eiendom AS | Real estate | 2011 |
| Spilde's Eftf AS | Wholesale & retail | 1988 |
| Spillan AS | Real estate | 2023 |
| Spillan Eiendom AS | Real estate | 2015 |
| Spillan Invest AS | Real estate | 2024 |
| Spinex AS | Health & social care | 2012 |
| Spinloop AS | Professional & scientific | 2023 |
| Spinvest AS | Professional & scientific | 2017 |
| Spisekroken Ingvild AS | Hospitality | 1998 |
| SPK Eiendom AS | Real estate | 2021 |
| Spleisereise Da | Administrative & support | 2002 |
| Splinter AS | Information & communication | 2020 |
| SPOR10 AS | Real estate | 2017 |
| Sport 1 Sletten AS | Wholesale & retail | 2020 |
| Sport 1 Sportsgalleriet AS | Wholesale & retail | 2018 |
| Sport 1 Xhibition AS | Wholesale & retail | 2008 |
| Spot Design Ans | Information & communication | 1999 |
| Spots AS | Professional & scientific | 2025 |
| Spreafico Eckly AS | Arts & recreation | 2024 |
| Spretten Emu AS | | 2022 |
| Språkverkstaden AS | Professional & scientific | 2008 |
| Spurs Holding AS | Professional & scientific | 2006 |
| SR Regnskap AS | Professional & scientific | 2022 |
| SR Rehab AS | Construction | 2023 |
| SRM Holding AS | | 2020 |
| SRS Ventures AS | | 2026 |
| SS Capital AS | | 2025 |
| SS Service AS | | 2012 |
| Sse AS | | 2025 |
| SSG Invest AS | Administrative & support | 2005 |
| Ssy Norway Asia AS | Transport & logistics | 2017 |
| Ssy Valuation Services AS | Transport & logistics | 2021 |
| ST Knutsen Invest AS | Health & social care | 2018 |
| ST Olavs Gate 12 AS | Real estate | 2007 |
| ST Olavs GT 12 Ans | Real estate | 1992 |
| ST Olavsg 27 AS | Real estate | 2025 |
| St-Floen Holding AS | Financial services | 2011 |
| ST. Hanshaugen 2 AS | Education | 2015 |
| ST. Olavs Gate 26 AS | Real estate | 2000 |
| St.Jacobs 2 AS | Real estate | 2014 |
| Stabburet AS | Wholesale & retail | 1963 |
| Stabburshaugen Eiendom AS | Real estate | 2007 |
| Stacc AS | Information & communication | 1999 |
| Stacc Core AS | Information & communication | 2021 |
| Stacc Flow AS | Information & communication | 2021 |
| Stacc Nova AS | Information & communication | 2020 |
| Stad AS | Financial services | 2009 |
| Stadion Fysioterapi Ans | Health & social care | 1991 |
| Stadion Fysioterapi AS | Health & social care | 2025 |
| Stadsporten AS | Real estate | 1993 |
| Stag Invest AS | | 2023 |
| Stailan AS | Information & communication | 2026 |
| Stamnes Lysteknikk AS | | 2024 |
| Stamsneset 99 AS | Real estate | 2011 |
| Standal Holding AS | Other services | 2005 |
| Standing Ovation AS | Professional & scientific | 2018 |
| Stanesveien 35 AS | Real estate | 1983 |
| Stanesveien Invest AS | Real estate | 2010 |
| Stangeland Seastar AS | Professional & scientific | 2025 |
| Star Elektro AS | Construction | 2002 |
| Stardalen Holding AS | | 2025 |
| Stardust Invest AS | Professional & scientific | 2007 |
| Starefossen Invest AS | Financial services | 2017 |
| Starfish Bidco AS | | 2024 |
| Starfish Holdco AS | | 2024 |
| Starfish Mipco AS | | 2026 |
| Starline AS | Administrative & support | 1994 |
| Starline Holding AS | Administrative & support | 2005 |
| Starmedia Domain Inc Nuf | | 2000 |
| Starmon AS | | 2022 |
| Startat 2 AS | Hospitality | 2023 |
| Startenders Bergen Da | | 2026 |
| Startup Bergen AS | Professional & scientific | 2016 |
| Startuplab Vestland AS | Professional & scientific | 2025 |
| Starvhusgaten 2 a AS | Real estate | 2019 |
| Starvhusgaten 2 a Hjemmel AS | Real estate | 2007 |
| Starvhusgaten 2 B AS | Real estate | 2019 |
| Starvhusgaten 2 B Hjemmel AS | Real estate | 2007 |
| Stas Artist AS | Professional & scientific | 2020 |
| Statler & Waldorf AS | Professional & scientific | 2006 |
| Statsautorisert Revisor Eirik Hordvik AS | Professional & scientific | 2010 |
| Statsautorisert Revisor Tom Ove Olsen AS | Professional & scientific | 2005 |
| Statsmegler Prom AS | Real estate | 2023 |
| Statsminister Michelsens Veg 38 AS | Real estate | 2022 |
| Stavanger City AS | Real estate | 2012 |
| Stay Bergen AS | Real estate | 2025 |
| Stay Holding AS | Real estate | 2019 |
| Stay Homes AS | Hospitality | 2025 |
| Stay Hotels AS | Hospitality | 2025 |
| Stay Management AS | Real estate | 2021 |
| Stay Os AS | Real estate | 2026 |
| Stay Properties AS | Real estate | 2023 |
| Steady Acquisition AS | Professional & scientific | 2024 |