| Soval AS | Skodje | 2016 |
| Sovehjerte AS | Oslo | 2022 |
| Spa Norge AS | Drammen | 2021 |
| Spartaklinikken Da | Sarpsborg | 2009 |
| Speare AS | Tønsberg | 2009 |
| Specialisttandläkare Sofia Heydeck AB Nuf | Se-737 33 Fagersta | 2025 |
| Speciallæge Jørgen Johansen Aps | Stavanger | 2009 |
| Specto AS | Lindesnes | 1996 |
| Spectra Drift AS | Oslo | 2025 |
| Spekter Pluss AS | Nyborg | 1990 |
| Sperling Medic AS | Lysaker | 2023 |
| Spero Invest AS | Steinkjer | 2011 |
| Spes. Idrettsfysioterapeut Petter Nøtnes AS | Oslo | 2020 |
| Speshjertesykdommer MD AS | Oslo | 2025 |
| Spesialbehandler AS | Nordkjosbotn | 2012 |
| Spesialbehandler Limited Nuf | Nordkjosbotn | 2025 |
| Spesialist Collegium Stephane Barbari AS | Sellebakk | 2002 |
| Spesialist I Periodonti Kathrin Beyer AS | Bergen | 2025 |
| Spesialist I Psykiatri Brit Haver AS | Fyllingsdalen | 2013 |
| Spesialist I Psykiatri Myklebust AS | Haugesund | 2025 |
| Spesialist Klinikken AS | Oslo | 2005 |
| Spesialist Manuellterapi Og Idrettsfysioterapi AS | Bergen | 2015 |
| Spesialistgruppen Gastro AS | Bergen | 1998 |
| Spesialistgruppen Hjerte AS | Bergen | 1995 |
| Spesialisthelse AS | Son | 2017 |
| Spesialisthuset AS | Volda | 2024 |
| Spesialistklinikk AS | Kristiansand S | 2014 |
| Spesialistklinikk for Periodonti AS | Oslo | 2023 |
| Spesialistklinikken AS | Harstad | 2016 |
| Spesialistklinikken Kråkerøy AS | Kråkerøy | 2025 |
| Spesialistklinikken Stein Dragland AS | Harstad | 2013 |
| Spesialistklinikken Union Brygge AS | Drammen | 2016 |
| Spesialistklinikkene AS | Lysaker | 2017 |
| Spesialistlege AS | Moss | 2020 |
| Spesialistlege M. Sherif AS | Hammerfest | 2025 |
| Spesialistpraksis Davor Baros AS | Stavanger | 2014 |
| Spesialistpraksis I Psykiatri AS | Oslo | 2014 |
| Spesialistsenteret AS | Kristiansand S | 2005 |
| Spesialistsenteret for Kvinner AS | Jessheim | 2012 |
| Spesialistsenteret Katarsis AS | Oslo | 2021 |
| Spesialistsenteret Pilestredet Park AS | Oslo | 1998 |
| Spesialistutredning AS | Oslo | 2026 |
| Spesialklinikken Limited Nuf | Stavanger | 2010 |
| Spesmedico AS | Stavanger | 2016 |
| SPF Helse AS | Lundenes | 2023 |
| Spiggeren Legesenter Da | Mandal | 2001 |
| Spikkeland Fysioterapi AS | Arendal | 2024 |
| Spikkestadlegene AS | Spikkestad | 2018 |
| Spina AS | Risør | 1989 |
| Spina Fysioterapi Og Manuellterapi Ringerike Da | Hønefoss | 2005 |
| Spina Helse AS | Hønefoss | 2025 |
| Spina Holding AS | Asker | 2021 |
| Spinafysio AS | Stjørdal | 2025 |
| Spinal Care AS | Oslo | 2021 |
| Spinalkirurgi Nuf | Reistad | 2005 |
| Spine AS | Vollen | 2002 |
| Spinex AS | Bergen | 2012 |
| Spinneri AS | Verdal | 2009 |
| Spir Arbeidsinkludering AS | Oslo | 2021 |
| Spir Helse AS | Sandnes | 2015 |
| Spira Utvikling AS | Etne | 1996 |
| Spire Ultralyd AS | Stavanger | 2024 |
| Spire-Ipt SA | Nord-Torpa | 2023 |
| Spiren Fertilitetsklinikk AS | Trondheim | 2021 |
| Spiren Terapi AS | Fagernes | 2026 |
| Spirit by Stephanie AS | Kragerø | 2020 |
| Spiro Psychology | Svene | 2026 |
| Spirox AS | Moss | 2025 |
| Spisskompetanse AS | Hosle | 2019 |
| SPJ Konsult AB | Se-341 37 Ljungby | 2011 |
| Spjelkavik Tannlegesenter AS | Ålesund | 2020 |
| Spor HR AS | Hommelvik | 2009 |
| Sport Medicine Science AS | Oslo | 2007 |
| Sportmed AS | Sandnes | 2020 |
| Sportrehab AS | Rolvsøy | 2011 |
| Sportsconsult AS | Skien | 2023 |
| Sportsmedisin AS | Oslo | 2021 |
| Spqr AS | Haslum | 2021 |
| Sprek Helse AS | Oslo | 2024 |
| Spreke Føtter AS | Stavanger | 2017 |
| Sprell Levende AS | Fjellhamar | 2006 |
| Sprett AS | Silsand | 2021 |
| Sprett Fysioterapi AS | Hamar | 2025 |
| Springbukk AS | Oslo | 2023 |
| Spro Holding AS | Sandnes | 2021 |
| Sprudlende Sunn AS | Manstad | 2012 |
| Språkbroen Logopedi AS | Seim | 2024 |
| Sre LT AS | Oslo | 2024 |
| Srmc AS | Trondheim | 2023 |
| SRT Holding AS | Grålum | 2016 |
| SS Ops Helse AS | Oslo | 2026 |
| Ssi Energy Ltd | Hampshire So18 2Rz | 2020 |
| ST Knutsen Invest AS | Bergen | 2018 |
| ST. Apollonia Dental Hospital AS | Oslo | 2025 |
| ST. Apollonia Hospital AS | Oslo | 2022 |
| ST. Hanshaugen Fotklinikk AS | Oslo | 2020 |
| ST. Olav Legegruppe AS | Stavanger | 2015 |
| ST. Olav Medisinske Da | Oslo | 2007 |
| ST. Olavs Plass Reiseklinikk AS | Oslo | 2026 |
| St.Olav Helseklinikk AS | Tønsberg | 2008 |