| Srai AS | Oslo | 2023 |
| Sras AS | Skien | 2005 |
| Srasch AS | Nesttun | 2018 |
| SRB Radiopharma Holding AS | Oslo | 2019 |
| SRC Consultants Ltd Nuf | Røyneberg | 2025 |
| SRC Nordic AS | Oslo | 2013 |
| Sredna Holding AS | Oslo | 2007 |
| Sreekon Norge AS | Fyllingsdalen | 2017 |
| SRF AS | Manstad | 2011 |
| SRG Consulting AS | Oslo | 2018 |
| Sridsdill Ltd | Pl18 9Dg Gunnislake | 2019 |
| Srimali Limited | London W1H 1Ew Eengland | 2023 |
| SRK Systems GmbH | De-58313 Herdecke | 2015 |
| SRM Consulting AS | Oslo | 2025 |
| SRM Forvaltning AS | Bygland | 2019 |
| SRM Subsea Ltd | Aberdeenshire Ab51 3Yb | 2018 |
| SRN Holding AS | Ålgård | 2025 |
| Sro Teknikk AS | Vestby | 2022 |
| Srp-Europe BV | 5531 Mb, Bladel | 2019 |
| SRT Management AS | Oslo | 2019 |
| Srtek AS | Frekhaug | 2026 |
| Sru Invest AS | Hamar | 2005 |
| SRV Record 23 Ltd Nuf | N146Qh, London, Southgate | 2010 |
| SRW AS | Moss | 2022 |
| SRW Management AS | Moss | 2023 |
| Srx-Tec AS | Stavanger | 2017 |
| SS Holding AS | Fornebu | 2005 |
| SS Industry AS | Hamar | 2017 |
| SS Kapital AS | Stjørdal | 2024 |
| SS Servo AS | Eina | 2016 |
| Ss-Universal AS | Søndeled | 2022 |
| SSC AS | Fauske | 2014 |
| Sseapro Solutions AS | Billingstad | 2018 |
| Sseiendom AS | Hamar | 2018 |
| Ssholding AS | Hamar | 2022 |
| Ssi Schaefer D.O.O. Nuf | Sl-2000 Maribor | 2020 |
| Ssi Schäfer AS | Vinterbro | 2017 |
| Ssi Schäfer Automation GmbH | 97232 Giebelstadt | 2010 |
| SSK Service AS | Sandnes | 2021 |
| SSK Tjenestesenter AS | Skjetten | 2025 |
| SSM Engineering Handelsbolag | S-444 31 Stenungsund | 1998 |
| Sso Invest AS | Kristiansand S | 2007 |
| Ssoi-R Consulting AS | Stryn | 2026 |
| Sstt Service Nuf | Se-134 31 Gustavberg | 2004 |
| ST Consult & Management AS | Oslo | 2017 |
| ST Hans Holding AS | Oslo | 2016 |
| ST Hjelpeselskap AS | Oslo | 2022 |
| ST Regnskaps Consult AS | Skjeberg | 2011 |
| ST. Hans Kommunikasjon AS | Oslo | 2019 |
| ST. Mariegate 53 AS | Sarpsborg | 2015 |
| ST. Olav Hall AS | Stavanger | 2026 |
| ST. Solfjeld AS | Oslo | 2020 |
| ST. Solfjeld Støttefunksjoner AS | Oslo | 2025 |
| St.Hanshaugen Flisespikkeri AS | Tårnåsen | 2019 |
| ST1 Nordre Sørøy Holding AS | Oslo | 2022 |
| Staahl Arkitektur AS | Rykkinn | 2026 |
| Staal Advisory AS | Oslo | 2012 |
| Staal Consulting AS | Ski | 2014 |
| Staalhjerte AS | Åros | 2016 |
| Staalnacke Industries AS | Oslo | 2017 |
| Staar Surgical AG | Ch-2560 Nidau | 2024 |
| Stab AS | Kristiansand S | 2024 |
| Stabekk Alpintustyr Og Staver Da | Stabekk | 2000 |
| Stabekk Fan Parkering Da | Stabekk | 2000 |
| Stabekk Kamera Bestitest Da | Stabekk | 2000 |
| Stabekk Regnskapsservice AS | Jar | 1998 |
| Stabekkguidene Pboks Da | Stabekk | 2000 |
| Stabel AS | Nærbø | 2025 |
| Stabell Consult AS | Havøysund | 2001 |
| Stabil AS | Revetal | 2015 |
| Stabilator AS | Drammen | 2020 |
| Stable AS | Arendal | 2002 |
| Stablecare AS | Kolbjørnsvik | 2015 |
| Stack Engineering Ltd | Ph22 1Ul Aviemore | 2018 |
| Stack Media AS | Larvik | 2024 |
| Stacked Accounting AS | Lillestrøm | 2025 |
| Stackr Multiparking AS | Hurdal | 2026 |
| Staconsult Limited | Middlesbrough Cleveland Ts1 3Qw | 2020 |
| Stad Regnskap & Rådgivning AS | Stadlandet | 2014 |
| Stad Vekst AS | Nordfjordeid | 2017 |
| Stad Vet AS | Nordfjordeid | 2018 |
| Stadhav Prosjekt AS | Selje | 2014 |
| Stadig AS | Lillestrøm | 2023 |
| Stadig Bedre AS | Oslo | 2023 |
| Stadion Regnskap AS | Moss | 2013 |
| Stadler Rail Management AG Nuf | Ch-9565 Bussnang | 2026 |
| Stadler Rail Schweiz AG, Standort St.Margrethen | Ch-9430 St. Margrethen | 2026 |
| Stadler Service AG | Ch-9565 Bussnang | 2018 |
| Stadler Signalling AG Nuf | Ch-8304 Wallisellen | 2026 |
| Stadler UK Limited | Ashford Tn23 1Rd England | 2025 |
| Stadsbygd Regnskapskontor AS | Stadsbygd | 2007 |
| Stadsøy Da | Trondheim | 2005 |
| Stadt Towing Tank AS | Deknepollen | 2007 |
| Staff Design AS | Larvik | 2017 |
| STAFF1 MB Nuf | Oslo | 2025 |
| Staffcal Limited | Gb Stirlinghire Fk2 0Tj | 2021 |
| Staffer.Com AS | Oslo | 2025 |
| Stafr Consulting AS | Stavanger | 2021 |
| Stag Consulting AS | Oslo | 2022 |
| Stag Geological Services Ltd | Gb-Reading Rg7 8Ub England | 2001 |