| Stardalen Barnehage SA | Skei I Jølster | 1989 |
| Starkhaus AS | Trondheim | 2025 |
| Start Trafikkskole AS | Mandal | 2020 |
| Start Trafikkskule AS | Langevåg | 2017 |
| Startbra Nuf | Røyken | 2021 |
| Startup International AS | Eiksmarka | 2012 |
| Starveien Barnehage SA | Oslo | 1991 |
| Stasjonshaven Barnehage SA | Kristiansand S | 1993 |
| Stavanger Idélab AS | Stavanger | 2024 |
| Stavanger Performance Center AS | Stavanger | 2023 |
| Stavanger Sjåførskole AS | Stavanger | 2023 |
| Stavanger Urban Folkehøyskole AS | Stavanger | 2021 |
| Stavanger Wine Consulting AS | Stavanger | 2022 |
| Stave Utvikling AS | Tustna | 2023 |
| Stavsberg Barnehage SA | Furnes | 1994 |
| Stavsetmyra Barnehage SA | Trondheim | 1997 |
| Staxvold Holding AS | Halden | 2011 |
| Stefan Forsman Häst AB | S-774 61 Avestad | 1997 |
| Steffen Håndlykken Holding AS | Ottestad | 2018 |
| Steffisteaching AS | Skjetten | 2017 |
| Steg Løpetrening AS | Bergen | 2024 |
| Stein Eliassen Aut Trafikkskole AS | Fyllingsdalen | 1985 |
| Stein Holding AS | Kirkenes | 2005 |
| Stein Kvalheim AS | Tønsberg | 2008 |
| Stein Thomassen Ltd Nuf | Oslo | 2008 |
| Steinar S.Holding AS | Vestsida | 2016 |
| Steinarskogen Fus Barnehage AS | Veavågen | 2018 |
| Steinberget Barnehage SA | Krokelvdalen | 1993 |
| Steinbråten Holding AS | Gol | 2015 |
| Steingjerdet Barnehage AS | Åsgårdstrand | 2013 |
| Steingjerdet Holding AS | Åsgårdstrand | 2026 |
| Steinhaugane Eiendom BHG AS | Kolnes | 2004 |
| Steinhaugane Fus Friluftsbarnehage AS | Kolnes | 2018 |
| Steinkjer Trafikkskole AS | Steinkjer | 2016 |
| Steinrøysa Andelsbarnehage SA | Nittedal | 1998 |
| Steinsfjellet Barnehage SA | Haugesund | 2003 |
| Steinsfjorden Montessoriskole SA | Hønefoss | 2009 |
| Steinsto Holding AS | Kristiansand S | 2022 |
| Steinvegen Barnehage AS | Leksvik | 2005 |
| Steira Akademi AS | Oslo | 2022 |
| Stella Development AS | Kristiansand S | 2012 |
| Stellas Fyr AS | Oslo | 2025 |
| Stemland Gårdsbarnehage AS | Valnesfjord | 2023 |
| Stemmeprakt AS | Bodø | 2013 |
| Stemvegen Fus Barnehage AS | Sola | 2018 |
| Stenbråttet Barnehage SA | Røros | 1986 |
| Stengaarden AS | Porsgrunn | 2016 |
| Stenseth Barnehage SA | Krokstadelva | 2003 |
| Step in Dansestudio AS | Bergen | 2006 |
| Step Studio AS | Oslo | 2013 |
| Step Trafikkskole AS | Spikkestad | 2014 |
| Steps Dansestudio AS | Stavanger | 2024 |
| Steps Holding AS | Stavanger | 2024 |
| Sterk I Lag AS | Oslo | 2026 |
| Sterk Norge Nuf | 3972Nc Driebergen-Rijsenburg | 2018 |
| Sterk Sammen AS | Oslo | 2022 |
| Sterkere Tilbake AS | Erfjord | 2024 |
| Sternuus AS | Oslo | 2013 |
| Stette Friskule SA | Skodje | 2014 |
| Stian Bratland AS | Rolvsøy | 2021 |
| Stians Trafikkskole AS | Ski | 2015 |
| Stichting Hogeschool Van Amsterdam | 1091 Gh Amsterdam | 2024 |
| Stichting Katholieke Universiteit Brabant | Stordal | 2006 |
| Stichting Nederlandse Taal En Cultuur Oslo | Bekkestua | 2008 |
| Stichting Vu | 1081 Hv Amsterdam | 2022 |
| Stiene AS | Haugesund | 2025 |
| Stifab Norge AS | Lillestrøm | 2010 |
| Stig a. Bruset AS | Asker | 1998 |
| Stig Berentsen Trafikkskole AS | Laksevåg | 2013 |
| Stig Berge Matthiesen AS | Bergen | 2012 |
| Stig Olsen Squash AS | Steinberg | 2005 |
| Stiklestad Gårds- Og Friluftsbarnehage AS | Verdal | 2008 |
| Stilla Barnehage SA | Oslo | 1987 |
| Stillcon AS | Molde | 2014 |
| Stille Styrke AS | Fredrikstad | 2011 |
| Stille Styrke May Way AS | Langesund | 2025 |
| Stimuli AS | Trondheim | 2000 |
| Stine Brandt Nilsen Trafikkopplæring AS | Tromsdalen | 2025 |
| Stitko AS | Steinkjer | 2023 |
| Stitsj AS | Hamar | 2020 |
| Stjerneblokkveien Private Barnehage AS | Oslo | 2012 |
| Stjernelys AS | Haugesund | 2023 |
| Stjernen Fus Barnehage AS | Hyggen | 2007 |
| Stjørdal Barnehage SA | Stjørdal | 1994 |
| Stokka Åpen Barnehage AS | Stavanger | 2023 |
| Stokkbekken Barnehage AS | Charlottenlund | 2007 |
| Stokke Maritime Fus Barnehage AS | Ellingsøy | 2018 |
| Stokkeland AS | Egersund | 2022 |
| Stokkelandsåsen Familiebarnehage AS | Søgne | 2016 |
| Stoknes Futures AS | Oslo | 1999 |
| Stoppen Barnehage SA | Lier | 2006 |
| Stoppstress AS | Hemsedal | 2023 |
| Stor-Elvdal Naturbarnehage AS | Koppang | 2020 |
| Storafjellet Fus Barnehage AS | Vikeså | 2018 |
| Storbakken Barnehage SA | Frei | 2001 |
| Stord Akuttmedisinsk Undervisning AS | Stord | 2008 |
| Stord Folkehøgskule AS | Stord | 2018 |
| Stord Kristne Skule AS | Stord | 2012 |
| Stordahl-Holding AS | Finsland | 2026 |
| Store Brevik Barnehage AS | Son | 2022 |