| Spesial Renholdsservice AS | Kristiansand S | 2012 |
| Spesialmaskiner Da | Stranda | 2003 |
| Spesialtransport Norge AS | Kleppe | 2005 |
| Spesialutleie AS | Frogner | 2022 |
| SPF Record 17 Ltd Nuf | N146Qh, London, Southgate | 2008 |
| SPG6 Holding AS | Hellesylt | 2022 |
| Spi AS | Nes På Hedmarken | 2007 |
| Spider Network AS | Kløfta | 2021 |
| Spidergawd Management AS | Trondheim | 2015 |
| Spigo Aps | Dk-8800 Viborg | 2008 |
| Spillkveld Ans | Søfteland | 2025 |
| Spinnaker AS | Oslo | 2004 |
| Spintek AS | Oslo | 2021 |
| Spit Air AS | Notodden | 2000 |
| Spitsbergen Guide Service AS | Longyearbyen | 2014 |
| Spitzbergen Adventures AS | Longyearbyen | 2014 |
| Spitzbergen Reisen AS | Longyearbyen | 2016 |
| Spjeldset Veilag SA | Hovin I Telemark | 2006 |
| Spjelkavik Panorama AS | Ålesund | 2017 |
| Splash Ans | Sandvika | 2008 |
| Spleisereise Da | Bergen | 2002 |
| Spoken Word Limited | Hp16 9Pe Buchinghamshire | 2009 |
| Spon Verksted AS | Oslo | 2024 |
| Sponsor Compagniet AS | Hønefoss | 2006 |
| Sponsor Service GmbH | Oslo | 2001 |
| Sponsor Shop Ans | Oslo | 2002 |
| Sponsora AS | Oslo | 2024 |
| Sponsorinvest Ans | Moss | 2000 |
| Sponsormegleren AS | Vollen | 2018 |
| Spor Guiding AS | Langfjordbotn | 2013 |
| Spor Og Utemiljø AS | Varteig | 2020 |
| Spornes AS | Færvik | 2015 |
| Sport & Helseferie AS | Oslo | 2000 |
| Sport & Media AS | Øyer | 2013 |
| Sport & Parquet Aps Nuf | 8620 Kjellerup | 2019 |
| Sport Auto Events AS | Fredrikstad | 2013 |
| Sport Og Fritidsreiser AS | Sykkylven | 2012 |
| Sport Og Grøntanlegg AS | Son | 2002 |
| Sport To-Go AS | Oslo | 2026 |
| Sport-Event AS | Fetsund | 2018 |
| Sportbutiken I Charlottenberg AB | 67 231 Årjäng | 2017 |
| Sportpartnerservice AS | Vågå | 2018 |
| Sports-Partner AS | Oslo | 2018 |
| Sportsadventure AS | Oslo | 2023 |
| Sportsbutiken I Töcksfors Handelspark AB | 67231 Årjäng | 2017 |
| Sportstad Auto AS | Strømmen | 2013 |
| Sportswear Holding AS | Molde | 2004 |
| Sporty Renhold AS | Snarøya | 2025 |
| Spotless Facility AS | Oslo | 2026 |
| Spotless Renhold AS | Oslo | 2024 |
| Sprek Norge AS | Sandnes | 2014 |
| Spreke Opplevelser AS | Løten | 2021 |
| Spring Communication AS | Tønsberg | 2026 |
| Spring Leap Ltd Nuf | Hurdal | 2013 |
| Spring Nova Gruppen AS | Tønsberg | 2019 |
| Spring Respons Og Logistikk AS | Tønsberg | 2023 |
| Springboard Umbrella Company Ltd | Reading, Berksahire Rg2 6Ub | 2011 |
| Springtime Event AS | Oslo | 2010 |
| Springtime Group AS | Oslo | 2016 |
| Springtime Travel Norway AS | Oslo | 2002 |
| Sprängsotning AB | Oslo | 2010 |
| SPS Engineering Consultants Limited | Cheshire Wa1 1Rg | 2016 |
| SPT Offshore B.V. | Nl-3447Gg Woerden | 2012 |
| Spurkeland Vikinggard AS | Seim | 2012 |
| Spurven AS | Kristiansand S | 2024 |
| SPX AS | Narvik | 2021 |
| Spydeberg Kulturstasjon AS | Spydeberg | 2021 |
| Spydeberg Utemiljø AS | Spydeberg | 2010 |
| Spylemannen AS | Larvik | 2025 |
| Spylepartner AS | Kristiansund N | 2025 |
| SPZ Bilutleie AS | Kleppestø | 2019 |
| Spìra Invest AS | Fosnavåg | 2022 |
| Spørck Service AS | Rognan | 2025 |
| SQ Offshore Services Ltd | Dundee Dd5 4Ne Scotland | 2020 |
| SQ Urban Landskap AS | Oslo | 2017 |
| Squareroot AS | Oslo | 2021 |
| Squeakyclean AS | Fjerdingby | 2024 |
| SR Driftservice AS | Stokmarknes | 2026 |
| SR Events AS | Kjørsvikbugen | 2018 |
| SR Maskinutleie AS | Nodeland | 2018 |
| SR Ramsland AS | Øyslebø | 2021 |
| Sra Drift AS | Trondheim | 2021 |
| Srek AS | Hauge I Dalane | 2024 |
| Sroev AS | Skånevik | 2021 |
| Srskolseg Holding AS | Oslo | 2023 |
| SSB Agri AS | Elverum | 2016 |
| Sse International Nuf | Ky-1-1104 Grand Cayman | 2017 |
| Ssem Drift AS | Trondheim | 2025 |
| SSG Invest AS | Bergen | 2005 |
| Sshfp Record 44 Ltd Nuf | N146Qh, London, Southgate | 2010 |
| SSK Utleie AS | Alta | 2021 |
| SSS Utleie AS | Stavanger | 2021 |
| Sswangen AS | Trondheim | 2022 |
| ST 1 Nordic OY | Fi-00380 Helsinki | 2016 |
| ST Drift AS | Vinterbro | 2019 |
| ST Maintenance S.R.O. Nuf | Oslo | 2025 |
| ST. 13.NO AS | Stavanger | 2018 |
| ST. Halvardsgate 65 Næring AS | Oslo | 2024 |
| ST1 Finance OY | Fi-00520 Helsinki | 2022 |
| Sta-Rent AS | Nittedal | 2022 |