| Solbakken Art AS | Songe | 2025 |
| Solbakken Barnas Hage AS | Oslo | 2022 |
| Solbakken Barnehage SA | Oslo | 1996 |
| Solbakken Barnehager AS | Oslo | 2023 |
| Solbakken Naturbarnehage AS | Halden | 2022 |
| Solbakkeparken Barnehage AS | Sarpsborg | 2022 |
| Solberg Torgersen Invest AS | Kvelde | 2020 |
| Soldagen Barnehage AS | Tromsø | 1991 |
| Soldattrening AS | Oslo | 2024 |
| Sole Barnehage SA | Sandefjord | 1992 |
| Sole Skog Barnehage AS | Vestby | 2022 |
| Solearning AS | Stavanger | 2015 |
| Solemskogen Naturbarnehage SA | Oslo | 1990 |
| Solertis AS | Klokkarvik | 2025 |
| Solfrid AS | Knarrevik | 2018 |
| Solfrid Koanda WL AS | Grimstad | 2024 |
| Solgry, Frelsesarmeens Barnehage I Drøbak AS | Drøbak | 2022 |
| Solhaugen Barnehage SA | Lindås | 2000 |
| Solheim Barnehage AS | Svolvær | 1997 |
| Solheim Barnehage SA | Stokmarknes | 1989 |
| Solheim Barnehage SA | Maura | 1992 |
| Solheim Trafikkskole AS | Sandefjord | 2020 |
| Solheisen Ski Og Snowboard Skole Da | Hemsedal | 1999 |
| Solhjerter AS | Sjursnes | 2019 |
| Solid Kompetanse AS | Finstadjordet | 2024 |
| Solid Trafikkskole AS | Ski | 2025 |
| Solid Utvikling AS | Oslo | 1998 |
| Solid Veiledning AS | Trysil | 2019 |
| Solkysten Yoga AS | Sponvika | 2014 |
| Sollan-Rom for Arbeidsglede Da | Asker | 2005 |
| Sollefteå Utbildningskompani | Oslo | 2016 |
| Sollerud Barnehage SA | Oslo | 1989 |
| Solli Barnehage AS | Herøy | 2011 |
| Sollid Trafikkskole AS | Skien | 2015 |
| Solregn Familiebarnehage AS | Saksvik | 2012 |
| Solrosen Steinerbarnehage AS | Oslo | 2017 |
| Solsiden Barnehage SA | Spydeberg | 1989 |
| Solsikka AS | Fiskå | 2012 |
| Solsikken Barnehage AS | Nedenes | 2023 |
| Solsikken Barnehage Skeie AS | Rådal | 2007 |
| Solsikken Familiebarnehage Da | Sarpsborg | 1997 |
| Solsikkene Barnehager AS | Stord | 2007 |
| Solskinn Og Latter AS | Kristiansand S | 2018 |
| Solstice Capital AS | Bergen | 2022 |
| Solstråla Familie Barnehage Da | Jessheim | 2024 |
| Solstrålen Barnehage Ans | Florvåg | 1996 |
| Solstrålen Barnehage AS | Fevik | 2005 |
| Solstrålen Familiebarnehage AS | Ålesund | 2019 |
| Solstua Barnehage AS | Hagan | 2014 |
| Solstua Kulturbarnehage AS | Stathelle | 2002 |
| Soltun Barnehage SA | Brønnøysund | 1990 |
| Soltun Gårdsbarnehage AS | Ise | 2008 |
| Soluciona AS | Oslo | 2024 |
| Solund Kreativ AS | Hardbakke | 2010 |
| Solvang Barnehage AS | Ottestad | 2006 |
| Solvang Barnehage Førde AS | Førde | 2022 |
| Solvang Barnehage SA | Sandefjord | 1988 |
| Solvangen Barnehage SA | Trondheim | 2000 |
| Solåsen Fus Barnehage AS | Son | 2018 |
| Solør Montessori Barnehage AS | Arneberg | 2014 |
| Solør Montessoriskole SA | Arneberg | 2004 |
| Solør Private Videregående Skole AS | Gjesåsen | 2024 |
| Soma Miljøkonsult AS | Jessheim | 1998 |
| Somatic Experiencing Instituttet Norge Da | Oslo | 2019 |
| Sometimes Aerial & Pole Fitness AS | Oslo | 2009 |
| Somlehub AS | Lierskogen | 2026 |
| Sommelier Liora Levi AS | Oslo | 2014 |
| Sommer Som Vinter AS | Vettre | 2000 |
| Sommerfuglen Steinerbarnehage AS | Trondheim | 2004 |
| Sommerkursene.No AS | Oslo | 2012 |
| Sommerly Barnehage SA | Fetsund | 1991 |
| Sommerro Musikk AS | Klokkarstua | 2024 |
| Sommhelp AS | Fyllingsdalen | 2017 |
| Sommtwins Da | Voss | 2025 |
| Somsagt AS | Oslo | 2014 |
| Sonans Privatgymnas AS | Oslo | 1999 |
| Sondre Events AS | Asker | 2024 |
| Songvaar Consulting AS | Søgne | 2023 |
| Sonja Hauan AS | Sandnes | 2019 |
| Sonja Reite Art Studio AS | Eidsnes | 2022 |
| Sonja Studio AS | Drammen | 2024 |
| Soppdilla AS | Lommedalen | 2023 |
| Soria Moria Studentbarnehage AS | Narvik | 2022 |
| Soria Moria Trafikkskole AS | Oslo | 2012 |
| Sorknes Barnehage SA | Frogner | 1990 |
| Sorperoa Barnehage AS | Vinstra | 2024 |
| Sortland Trafikkskole AS | Sortland | 2022 |
| Sos-Langstrand AS | Kvaløya | 2019 |
| Sosialkonsult Ans | Sandefjord | 1997 |
| Sosiologisk Poliklinikk AS | Trondheim | 2014 |
| Sotra Trafikkopplæring AS | Straume | 2014 |
| Soulgrowth AS | Hagan | 2024 |
| Soulmama AS | Skien | 2025 |
| Soulyoga AS | Utne | 2015 |
| Sound-Irish Dance Factory AS | Oslo | 2023 |
| South Col Savings AS | Oslo | 2019 |
| Sovereignwise AS | Bergen | 2023 |
| Space Pilates AS | Oslo | 2017 |
| Spakong AS | Stavanger | 2018 |
| Spangereid Naturbarnehage AS | Lindesnes | 2012 |