| Seo Domains | Bg-1680 Sofia, Sofia Grad | 2023 |
| Ser Invent AS | Oppstryn | 2010 |
| Seras AS | Bærums Verk | 2023 |
| Serene Nord AS | Tverlandet | 2026 |
| Sereon AS | Oslo | 2013 |
| Sergel Norge AS | Sandefjord | 2002 |
| Serigstad Utleie AS | Bryne | 1996 |
| Serimax | 77290 Mitry-Mory | 2002 |
| Serkon Service & Utleie AS | Fauske | 2015 |
| Service Mannen Vest Agder Da | Kristiansand S | 2002 |
| Service Master AS | Sandnes | 2012 |
| Service Og Tjenester AS | Alta | 2020 |
| Service Og Vedlikehold AS | Biristrand | 2009 |
| Service På 123 AS | Straume | 2019 |
| Service På 123 AS | Straume | 2024 |
| Service Staff AS | Oslo | 2019 |
| Service Telefonen AS | Skarnes | 2005 |
| Service Øst AS | Brandbu | 2023 |
| Service-Folk AS | Oslo | 2022 |
| SERVICE4YOU AS | Oslo | 2013 |
| Servicealliansen Østfold AS | Halden | 2016 |
| Servicebedriften AS | Strømmen | 2021 |
| Servicebee AS | Fjellhamar | 2013 |
| Servicegutta AS | Sandefjord | 2017 |
| Servicekompaniet AS | Vennesla | 2020 |
| Servicelauget AS | Morvik | 2026 |
| Servicemannen AS | Vestby | 2024 |
| Servicemedarbeiderne Da | Haslemoen | 2005 |
| Servicemesteren AS | Gjøvik | 2020 |
| Servicemesteren Rise AS | Gjøvik | 2017 |
| Servicepartner Proff AS | Gran | 2013 |
| Servicepartner Søgne AS | Søgne | 1993 |
| Servicepartneren AS | Oslo | 2020 |
| Serviceproduksjon AS | Oslo | 2001 |
| Serviceriet AS | Vøyenenga | 2004 |
| Serviceringen AS | Kristiansand S | 2023 |
| Services AS | Hjellestad | 2014 |
| Servicesentralen AS | Oslo | 2022 |
| Servicesentralen Kattem Ust SA | Trondheim | 1977 |
| Servicetjenester AS | Svarstad | 2020 |
| Servicetjenester Tromsø AS | Tromsø | 2020 |
| Servicetjenester Østlandet AS | Skjetten | 2025 |
| Servicios Biva Marc Da SL | Es-08700 Igualada, Barcelona | 2023 |
| Servida AS | Trondheim | 2025 |
| Serviplus AS | Rykkinn | 2025 |
| Servis 1 AS | Hagan | 2018 |
| Servix Bergen AS | Bergen | 2003 |
| Servix Plantedekor AS | Rud | 1984 |
| Servtech Personell AS | Sandnes | 2010 |
| Servtech Personell Bergen AS | Sandnes | 2025 |
| Servtech Personell Vest AS | Sandnes | 2023 |
| Servtech Rental AS | Sandnes | 2024 |
| Ses Energy AS | Sola | 1984 |
| Ses Trading & Consulting AS | Oslo | 2015 |
| Sesi International AS | Oslo | 2013 |
| Sesongstart Geilo AS | Geilo | 2026 |
| Seterveien AS | Trondheim | 2019 |
| Setesdal Folkemusikkdrift AS | Hovden I Setesdal | 2026 |
| Setim-Services | Asker | 2016 |
| Setpro Kommunale Tjenester AS | Evje | 2021 |
| Settl AS | Oslo | 2016 |
| Settnøy AS | Rørvik | 2012 |
| Sevan Drilling Limited Nuf | Stavanger | 2008 |
| SEVEN7 AS | Voss | 2018 |
| Sevent AS | Fredrikstad | 2020 |
| Seventyone AS | Krokkleiva | 2017 |
| Seventyone Yachts AS | Oslo | 2018 |
| Sevvo AS | Stavanger | 2025 |
| Sewe Utleie AS | Surnadal | 2023 |
| SFK Graving AS | Brumunddal | 2008 |
| SG Betong AS | Ålgård | 2017 |
| SG Invest AS | Kristiansund N | 2019 |
| SG Legal Search AS | Kristiansand S | 2017 |
| SG Svetsteknik Gruppen AB Nuf | Se-654 67 Karlstad | 2026 |
| SG Timing AS | Bybrua | 2023 |
| Sg-Utleie AS | Veavågen | 2012 |
| SGC Mineral AS | Stongfjorden | 2018 |
| SGG Industrier AS | Bybrua | 2023 |
| SGS MPR Services, LLC | 77511 Alvin, Texas | 2022 |
| Sgust Konsult AB | Oslo | 2012 |
| SH Eiendomsdrift AS | Bærums Verk | 2024 |
| SH Travel AS | Oslo | 2022 |
| SH Vedlikehold AS | Stokmarknes | 2026 |
| Shady Business AS | Lillehammer | 2022 |
| Shain IT AS | Grålum | 2025 |
| Shakleton Ltd & Compagnie | Port Louis | 2010 |
| Shandy AS | Oslo | 2021 |
| Share Registry System 10 Ltd Nuf | N146Qh, London, Southgate | 2008 |
| Share-Deling AS | Oslo | 2021 |
| Shared Mobility Nuf | Gardermoen | 2019 |
| Sharikat Yong Lee Lee | Singapore 159095 Repub Of Singapore | 2003 |
| Sharp Business Center Danmark | Dk-8250 Egå | 2018 |
| Shawcor (Singapore) Pte Ltd | Sg-United Square 307591 | 2021 |
| Shawcor UK Limited Norway | Orkanger | 2016 |
| She Conference AS | Oslo | 2023 |
| She Holding AS | Sørvågen | 2005 |
| Shearwater Geoservices Assets II AS | Laksevåg | 2016 |
| Shearwater Geoservices Assets V AS | Laksevåg | 1988 |
| Shearwater Geoservices Charterco AS | Laksevåg | 2019 |
| Shearwater Invest AS | Laksevåg | 2020 |