| Store Ljan Barnehage SA | Oslo | 1991 |
| Storebø Fus Barnehage AS | Storebø | 2019 |
| Storeper Barnehage AS | Sarpsborg | 2022 |
| Storeskiva Trening AS | Geithus | 2021 |
| Storfjord Naturbarnehage AS | Oteren | 2008 |
| Storhall I Vest AS | Florø | 2023 |
| Storm Entertainment AS | Loddefjord | 2017 |
| Storm Hldg AS | Oslo | 2018 |
| Storo Trafikkskole AS | Oslo | 2017 |
| Stortjernet Barnehage AS | Jevnaker | 2005 |
| Storveien Familiebarnehage Ans | Porsgrunn | 1995 |
| Storying-Lab AS | Oslo | 2025 |
| STQ AS | Fosnavåg | 2014 |
| STQ Medical AS | Fosnavåg | 2018 |
| Strai Barnehage SA | Kristiansand S | 1989 |
| Strand Barnehage SA | Stabekk | 1987 |
| Strand Trafikkskole AS | Kongsberg | 2019 |
| Strand Transportopplæring AS | Fagernes | 2020 |
| Strandkaien Drift AS | Bergen | 2005 |
| Strandkanten Fus Barnehage AS | Tromsø | 2019 |
| Strandstind AS | Levanger | 2023 |
| Strandvik Vekst AS | Strandvik | 2013 |
| Straumsgrend Barnehage SA | Straumsgrend | 1972 |
| Straumsvik Barnehage SA | Foldfjorden | 2009 |
| Strengereid Naturbarnehage AS | Eydehavn | 2021 |
| Stressprofessorene AS | Søreidgrend | 2018 |
| Strikkeskolen AS | Oslo | 2018 |
| Strilastyrke AS | Skogsvåg | 2023 |
| STRONG2GETHER AS | Søgne | 2023 |
| Strongbody AS | Heimdal | 2015 |
| Strongman Oslo AS | Os | 2020 |
| Stronkbuddy Dive Academy AS | Torp | 2026 |
| Strusshamn Barnehage SA | Strusshamn | 1993 |
| Strykejernet Kunstskole AS | Oslo | 1994 |
| Stryn Bedriftsbarnehage AS | Stryn | 1991 |
| Strøm Trafikkskole AS | Hitra | 2015 |
| Strømsgård AS | Austmarka | 2020 |
| Strømsparerne AS | Trondheim | 2020 |
| STS Education Group AS | Oslo | 2020 |
| Stubben Barnehage SA | Nittedal | 2002 |
| Stubbeskogen Naturbarnehage AS | Askim | 2011 |
| Studeasy AS | Oslo | 2024 |
| Studentenes Småbarnstue - Sio Barnehage AS | Oslo | 2022 |
| Studenthjelp Privatundervisning AS | Moss | 2014 |
| Studentongan Barnehage AS | Bodø | 2022 |
| Studersmart AS | Trondheim | 2024 |
| Studier I Utlandet AS | Torød | 2021 |
| Studiesenteret Midt-Troms AS | Finnsnes | 2005 |
| Studiesenteret Trøndelag Sørvest AS | Orkanger | 2025 |
| Studio 3 Dans AS | Kongsberg | 2014 |
| Studio D.A.N.S. Da | Porsgrunn | 2021 |
| Studio E Stensby AS | Mandal | 2012 |
| Studio Lenina AS | Ørsta | 2016 |
| Studio Lille Drammen AS | Drammen | 2023 |
| Studio Lille Sandefjord AS | Sandefjord | 2025 |
| Studio Mori Da | Fjellhamar | 2026 |
| Studio RV 20 Da | Flisa | 2006 |
| Studio Ski AS | Haugesund | 2025 |
| Study in Prague Da | Oslo | 2019 |
| Stulen Gårdsbarnehage AS | Langangen | 2014 |
| Sturdy Coaching AS | Trondheim | 2022 |
| Styd Kommunikasjon AS | Duken | 2012 |
| Stylist AS | Rolvsøy | 2025 |
| Styp AS | Oslo | 2026 |
| Styrefart AS | Kråkerøy | 2024 |
| Styrelederskolen AS | Oslo | 2007 |
| Styrk AS | Porsgrunn | 2018 |
| Styrke&Mestring Med Eirin AS | Grimstad | 2025 |
| Styrkefabrikken AS | Drammen | 2022 |
| Styrkefysiologen AS | Kleppe | 2019 |
| Styrkestua AS | Hønefoss | 2023 |
| Stå Sterkt AS | Trondheim | 2023 |
| Ståle Solbakken | Drammen | 2013 |
| Stålverkskroken Barnehage AS | Sarpsborg | 2022 |
| Stødig Forlag AS | Moss | 2025 |
| Stølen Private Barnehage SA | Oppdal | 1988 |
| Støyten Trafikkskolesenter AS | Hønefoss | 2009 |
| Sub:Marin AS | Holmestrand | 2026 |
| Succession AS | Sveio | 2012 |
| Sucus Holding AS | Oslo | 2018 |
| Sufi Fides AS | Oslo | 2020 |
| Suggestopedi AS | Oslo | 2024 |
| Sukkerspinn Familiebarnehage - Charlotte Filberg-Kaspersen AS | Stabekk | 2026 |
| Sukkerspinn Familiebarnehage Da | Stabekk | 2014 |
| Suksess I Utdanning AS | Vestby | 2020 |
| Suksess Trafikkskole AS | Fjellhamar | 2012 |
| Suksessklubb AS | Kristiansand S | 2023 |
| Sula Trafikkskule AS | Langevåg | 2025 |
| Summitbyhopstockhelse AS | Oslo | 2020 |
| Sundal Kompetanse AS | Florø | 2021 |
| Sundberg Førstehjelp & Brannvern AS | Myre | 2025 |
| Sundbys Holding AS | Oslo | 2023 |
| Sundve Fus Barnehage AS | Vossestrand | 2019 |
| Sunnere Jeg AS | Fagerstrand | 2007 |
| Sunnfjord Trafikk AS | Nordfjordeid | 2016 |
| Sunniva Theodora AS | Stange | 2025 |
| Sunrise Consult AS | Oslo | 2024 |
| Sunya AS | Oslo | 2024 |
| Super Human AS | Oslo | 2023 |
| Superbruker AS | Bø I Telemark | 2023 |