| Skytterbanen Fus Barnehage AS | Oslo | 2009 |
| Skytterløkka Barnehage SA | Kongsberg | 1989 |
| Skårbrevik Aut Trafikkskole AS | Ålesund | 1980 |
| Skåre Fus Barnehage AS | Haugesund | 2021 |
| Skårungen Barnehave SA | Lørenskog | 1978 |
| Skårøya Opplevelser AS | Kvenvær | 2010 |
| Skåthaugen Barnehage SA | Ålesund | 2000 |
| Slagen CF AS | Tolvsrød | 2018 |
| SLB Invest AS | Kleppe | 2021 |
| Slettebakken Menighets Barnehage AS | Bergen | 2016 |
| Slettheia Familiebarnehage AS | Kristiansand S | 2004 |
| Sletto Trafikkskole AS | Gol | 2016 |
| Slinningen Barnehage SA | Ålesund | 2002 |
| Slippbyhilde AS | Lørenskog | 2026 |
| Slitu Friskole AS | Slitu | 2025 |
| Sloap AS | Oslo | 2017 |
| Slotterøy AS | Sleneset | 2023 |
| Slu Sveriges Landbruksuniversitet | 750 07 Uppsala | 2007 |
| Slågstemmen Barnehage SA | Skudeneshavn | 2001 |
| Slåstad Barnehage SA | Slåstad | 1993 |
| SM Training AS | Kirkenes | 2015 |
| Smaalenene Handel Ans | Sarpsborg | 2013 |
| Smak Av Mat & Vin Da | Oslo | 2003 |
| Smaksforum AS | Moelv | 2023 |
| Smart Kompetanse AS | Sandnes | 2007 |
| Smart Trafikkopplæring AS | Hokksund | 2011 |
| Smart Utleie Eiendomsrådgivning AS | Oslo | 2020 |
| Smartbiz AS | Sortland | 2021 |
| Smarte Mål AS | Bergen | 2024 |
| Smarte Sinn AS | Rennesøy | 2026 |
| Smartere Utdanning AS | Trondheim | 2016 |
| Smartfordelt AS | Halden | 2026 |
| Smeby Familiebarnehage Da | Hamar | 1995 |
| Smedbakken Fus Barnehage AS | Oslo | 2018 |
| Smedhusåsen Barnehage SA | Dilling | 1998 |
| Smedstrup Invest AS | Saltnes | 2017 |
| Smedås Utvikling AS | Lillehammer | 2024 |
| Smest AS | Oslo | 2016 |
| SMG Norge AS | Oslo | 2017 |
| Smidsrød Fus Barnehage AS | Nøtterøy | 2018 |
| Smiehavna Gårdsbarnehage AS | Kodal | 2012 |
| Smud Yoga AS | Oslo | 2023 |
| Smurfen Barnehage Otta AS | Otta | 2012 |
| Smykkeakademiet AS | Oslo | 2022 |
| Små Barnehager Brakahaug AS | Haugesund | 2024 |
| Små Barnehager Karmøy AS | Haugesund | 2011 |
| Små Barnehager Risøy AS | Haugesund | 2011 |
| Små Barnehager Sentrum AS | Haugesund | 2015 |
| Små Barnehager Stallvegen AS | Haugesund | 2024 |
| Små Spirer Gårdsbarnehage AS | Råde | 2021 |
| Småbarnehager Røvær AS | Haugesund | 2017 |
| Småbarnsforeldrenes Barnehage Førde SA | Førde | 1989 |
| Småbarnsforeldrenes Barnehage Heimdal SA | Tiller | 1992 |
| Småbarnsforeldrenes Barnehage Lenvik SA | Finnsnes | 1992 |
| Småbarnsforeldrenes Barnehage Ringerike SA | Hønefoss | 1992 |
| Småtjern Naturbarnehage AS | Lunner | 2005 |
| Småtroll Harstad AS | Harstad | 2015 |
| Småtrollan Barnehage SA | Henningsvær | 1989 |
| Snajdder AS | Narvik | 2025 |
| Snakk for Deg Sjøl AS | Tromsø | 2015 |
| Snakknorsk AS | Rasta | 2021 |
| Snarveien Fus Barnehage AS | Sarpsborg | 2018 |
| Snarøya Barnehage AS | Bekkestua | 2023 |
| Snehvit Barnehage AS | Alta | 1990 |
| Snehvit Familiebarnehage AS | Arendal | 2023 |
| Snike AS | Hommersåk | 2026 |
| Snikkedalen Familiebarnehage AS | Kristiansand S | 2013 |
| Snillet Gård Friluftsbarnehage AS | Spongdal | 2007 |
| Snota AS | Steinkjer | 2005 |
| Snuitide AS | Stavanger | 2018 |
| Snurr AS | Oslo | 2024 |
| Snurråsen Familiebarnehage Ans | Siljan | 1995 |
| Snutti Musikkskole AS | Larvik | 2025 |
| SNX Granåsen AS | Verdal | 2025 |
| Snåsa Montessoribarnehage SA | Snåsa | 2004 |
| Snåsa Montessoriskole SA | Snåsa | 2005 |
| Snøfartsverket AS | Skulestadmo | 2011 |
| Snømyra Barnehage SA | Vennesla | 1991 |
| Snøscooterservice Fauske AS | Fauske | 2012 |
| So Fitness AS | Sandefjord | 2016 |
| So Vetrhus AS | Aksdal | 2010 |
| So Vetrhus Drift AS | Aksdal | 2023 |
| So-Vi AS | Bodø | 2019 |
| Sobia International Ltd Nuf | Vear | 2009 |
| Socia AS | Spikkestad | 2026 |
| Social Impact Lab AS | Bergen | 2010 |
| Society Lab Holding AS | Stavanger | 2020 |
| Society Studio AS | Stavanger | 2019 |
| Sof Active AS | Oslo | 2022 |
| Sofiemyråsen Barnehage SA | Sofiemyr | 1995 |
| Sogstieika Barnehage SA | Drøbak | 1995 |
| Soha Trafikkskole AS | Oslo | 2023 |
| Sokeynas Familiebarnehage AS | Moss | 2025 |
| Sokna Natur Og Gårdsbarnehage AS | Sokna | 2022 |
| Sol Familiebarnehage Da | Bjorbekk | 1995 |
| Sol Trafikkskule AS | Ålesund | 2009 |
| Sola Barnehage SA | Sola | 1988 |
| Sola Trafikkskole AS | Sola | 2006 |
| Solbakk AS | Ski | 2012 |
| Solbakke AS | Hellvik | 2024 |