| Salten Friteater SA | Bodø | 2021 |
| Salten Rib AS | Bodø | 2007 |
| Saltkjelen Handelskompani AS | Frei | 2018 |
| Saltosentralen AS | Førde | 2025 |
| Saltrøa Båthavn SA | Molde | 1983 |
| Salty Events AS | Sogndal | 2026 |
| Salum AS | Mathopen | 2022 |
| Same But Different AS | Oslo | 2024 |
| Samhold Holding AS | Drangedal | 2011 |
| Sami Siida AS | Alta | 2002 |
| Sami Viessu Oslo Os / Samisk Hus Oslo AS | Oslo | 2013 |
| Samkjørt AS | Oslo | 2017 |
| Samleverket AS | Mo I Rana | 2009 |
| Sammen for Elverum AS | Elverum | 2020 |
| Samovarteateret AS | Kirkenes | 1995 |
| Sams Solarium AS | Trysil | 2020 |
| Samvirkeføretaket Søreide Grunneigarlag | Bjordal | 1968 |
| Samvær Under Tilsyn Drift AS | Oslo | 2023 |
| Sand Lyd AS | Sand | 2023 |
| Sandbakken Musikk AS | Trondheim | 2017 |
| Sande Alværa Jaktfelt SA | Sande I Sunnfjord | 2013 |
| Sande Solsenter Da | Sande I Vestfold | 1998 |
| Sandefjord Foreningsbingo AS | Sandefjord | 2012 |
| Sandefjord Fotball AS | Sandefjord | 1993 |
| Sandefjord Golfsenter AS | Sandefjord | 2021 |
| Sandefjord Minigolf & Café AS | Stokke | 2018 |
| Sandefjord Treningssenter AS | Sandefjord | 2026 |
| Sandefjord Vinfestival AS | Sandefjord | 2025 |
| Sanden Studio AS | Kristiansand S | 2014 |
| Sandmo Motorsport AS | Bødalen | 2014 |
| Sandnes Arena AS | Sandnes | 2015 |
| Sandnes Kampsportsenter AS | Sandnes | 2010 |
| Sandnes Terapi Og Trening AS | Sandnes | 2017 |
| Sandnes Ulf Arena AS | Sandnes | 2017 |
| Sandra Lyng AS | Haslum | 2005 |
| Sandra Pedersen AS | Ålgård | 2022 |
| Sandshamn Båtlag SA | Sandshamn | 1998 |
| Sandsøy Aktivitet AS | Harstad | 2018 |
| Sandvika Bingo AS | Sandvika | 2001 |
| Sandvika Bowling AS | Sandvika | 2016 |
| Sang Og Musikk AS | Randaberg | 2021 |
| Sang Og Spill AS | Mandal | 2024 |
| Sangbruket AS | Tomter | 2007 |
| Sangrok Norge AS | Oslo | 2004 |
| Sangterapi AS | Risør | 2024 |
| Sankt Ans | Oslo | 1994 |
| Santana Kickboxing K1 Club AS | Fjellhamar | 2024 |
| Sao AS | Oslo | 2023 |
| Sapea AS | Fetsund | 2025 |
| Sapere Aude Guitar Duo Da | Oslo | 2015 |
| Saraaemiliee AS | Harestua | 2020 |
| Sarash AS | Oslo | 2017 |
| Sareptas Kompetanse AS | Lysekloster | 2022 |
| Sarpsborg Bowlingsenter AS | Sarpsborg | 1989 |
| Sarpsborg Fotball Invest AS | Grålum | 2001 |
| Sarpsborg Squashsenter AS | Borgenhaugen | 2012 |
| Sarpsborg Treningssenter AS | Sarpsborg | 2025 |
| Sarpsborgfestivalen AS | Borgenhaugen | 2015 |
| Sartor Bowling AS | Straume | 2024 |
| Sarvesalta Alpinsenter AS | Alta | 2012 |
| Sasa Musikk Og Kreativ Ans | Oslo | 2025 |
| Sassy 009 AS | Oslo | 2020 |
| Sats Norway AS | Oslo | 2008 |
| Sats Vest AS | Oslo | 1988 |
| Saturday People Danseorkester Ans | Vannareid | 1992 |
| Satyricon Alive Limited Nuf | Drammen | 2007 |
| Sauda Golfbane AS | Sauda | 2006 |
| Sauda Klubb AS | Sauda | 2018 |
| Sauda Skisenter AS | Saudasjøen | 2006 |
| Saude Utvikling AS | Sauda | 2022 |
| Sausvassdragets Forvaltningslag SA | Velfjord | 2021 |
| Savalen Aktiv AS | Tynset | 2022 |
| Savalen Skiarena AS | Tynset | 1990 |
| Save the Drama AS | Oslo | 2017 |
| Savve AS | Drag | 2019 |
| SBB Gruppen AS | Løten | 2019 |
| Scala Trening AS | Bergen | 2006 |
| Scandicana AS | Halden | 2007 |
| Scandinavian Chamber Soloists AS | Hamresanden | 2020 |
| Scandinavian Sports Management AS | Oslo | 2021 |
| Scandiravia AS | Løten | 2019 |
| Scen & Konferensteknik I Dalarna AB | Se-791 45 Falun | 2023 |
| Scenaskrekk Da | Jondal | 2017 |
| Scene Grefsenkollen AS | Oslo | 2000 |
| Scene Midt AS | Verdal | 2012 |
| SCENE43 AS | Stavanger | 2013 |
| Scenebredden AS | Lillestrøm | 2025 |
| Scenefest AS | Hafrsfjord | 2011 |
| Sceneglede AS | Løvenstad | 2014 |
| Scenekanalen AS | Oslo | 2015 |
| Scenekonsult AS | Fredrikstad | 2023 |
| Scenekontoret AS | Bergen | 2013 |
| Scenekvelder AS | Oslo | 2017 |
| Scenekvelder Holding AS | Oslo | 2010 |
| Sceneproduksjoner AS | Løvenstad | 2009 |
| Scenepuls AS | Oslo | 2026 |
| Sceneskrekk AS | Oslo | 2023 |
| Scenestorm Da | Oslo | 2008 |
| Sceneteamet AS | Breivik I Salten | 2021 |
| Sceneteknikk AS | Steinkjer | 2014 |