| RR Entertainment AS | Arts & recreation | 2023 |
| RRB Holding AS | Real estate | 2007 |
| RS Risholm AS | Real estate | 2014 |
| RSJ Invest AS | | 2022 |
| RSR Holding AS | Real estate | 2008 |
| Rubedo Forlag Da | Arts & recreation | 2025 |
| Rubens Skattkammer AS | Wholesale & retail | 2009 |
| Rucoria AS | Information & communication | 2016 |
| Rudis AS | Professional & scientific | 2006 |
| Rugdeveien Boliglag AS | Households | 1955 |
| Rugged Division AS | Professional & scientific | 2026 |
| Ruko AS | Education | 2003 |
| Rullestad & Skromme Energi AS | Professional & scientific | 2006 |
| Rumpetroll AS | Wholesale & retail | 2014 |
| Rumpetroll Invest AS | | 2022 |
| Runar Fisk AS | Agriculture & fishing | 2014 |
| Rundehaugen 9 AS | Real estate | 1979 |
| Rundeman Holding AS | | 2021 |
| Rundt Arkitektur AS | Professional & scientific | 2025 |
| Rune Johannessen AS | Construction | 1999 |
| Rune Valaker AS | Professional & scientific | 1997 |
| Rune Vatle Holding AS | Financial services | 2014 |
| Runlab AS | | 2023 |
| Runway-Norway AS | Administrative & support | 2017 |
| Rush Investment Group AS | Professional & scientific | 2015 |
| Ruth Eiendom AS | Real estate | 2024 |
| Ruth Kystfiske AS | Agriculture & fishing | 2020 |
| Rvi Eiendom AS | Real estate | 2024 |
| Ryco Insight AS | Professional & scientific | 2022 |
| Ryco Nexus AS | | 2024 |
| Ryddegutta AS | Water & waste | 2025 |
| Ryg Holding AS | Real estate | 2015 |
| Ryggklinikken Avd Ulriksdal AS | Health & social care | 2015 |
| Rynja AS | Real estate | 2006 |
| Ryr Eiendom AS | Real estate | 2023 |
| Respons A/S | Financial services | 1985 |
| Ro Hotel A/S | Real estate | 1987 |
| Rå Design Studio AS | Professional & scientific | 2018 |
| Rå Lab AS | Hospitality | 2016 |
| Rådal Eiendom AS | Real estate | 2014 |
| Rådal Eiendom Holding AS | Real estate | 2011 |
| Rådgiverfellesskapet AS | Professional & scientific | 2009 |
| Rådgivergården AS | Real estate | 2021 |
| Rådhusgaten 4 AS | Real estate | 2007 |
| Rådhushagen AS | | 2011 |
| Rådhuspassasjen AS | Real estate | 2017 |
| Rådhusvegen 2 Eid AS | Real estate | 2026 |
| Rådstuplass 4 Da | Real estate | 1990 |
| Råflaten Huseierlag SA | Real estate | 2007 |
| Råtoppen Utbygging AS | Real estate | 2023 |
| Råtræet AS | Real estate | 2020 |
| Råtræet Huseierlag SA | Real estate | 2005 |
| Råvarden SA | Real estate | 2005 |
| Rævedilter Bar Og Kafe AS | Hospitality | 2022 |
| Rødco AS | Real estate | 2013 |
| Rødland Corporation AS | Education | 2021 |
| Rørkompaniet AS | Construction | 2000 |
| Rørkompaniet Holding AS | Construction | 2005 |
| Rørleggermester Trond Nielsen AS | Construction | 2024 |
| Rørleggermester-Lillestøl AS | Construction | 2019 |
| Røsseland AS | Other services | 2025 |
| Røtter Av E.T AS | Other services | 2002 |
| Røwin Invest AS | Financial services | 2018 |
| Røynebergsletta 27 AS | Real estate | 2018 |
| Røynstrand Jacobsen AS | Hospitality | 2017 |
| S Harris AS | Real estate | 1990 |
| S Mota Holding AS | | 2024 |
| S Simonsen Holding AS | Real estate | 2005 |
| S Wikholm Holding AS | | 2022 |
| S. Fauske AS | Real estate | 2026 |
| S. Kalvenes Møgster AS | | 2018 |
| S. Nordvik Dental Da | Health & social care | 2021 |
| S. Nordvik Holding AS | Health & social care | 2021 |
| S.Herrevold Holding AS | | 2026 |
| S12 Galleri Og Verksted AS | Arts & recreation | 2014 |
| S13 Holding AS | | 2019 |
| S207 Eiendom AS | Real estate | 2012 |
| S2G Holding AS | | 2017 |
| S2OP AS | Arts & recreation | 2016 |
| S53 Næring AS | Real estate | 1974 |
| S8 Eiendom AS | Real estate | 2014 |
| SA Sædalssvingene Huseierlag | Real estate | 2017 |
| Saal AS | Real estate | 2021 |
| Saarco AS | Real estate | 2005 |
| Saarco Eiendom AS | Real estate | 2011 |
| Sabrura Bergen Storsenter AS | Hospitality | 2019 |
| Sabrura Galleriet AS | Hospitality | 2022 |
| Sacavi AS | Professional & scientific | 2025 |
| Sadaf Aziz Eiendom AS | Real estate | 2023 |
| Safeback AS | Manufacturing | 2018 |
| Safeback Holding AS | | 2018 |
| Safebridge Cyprus Limited | Education | 2022 |
| Safejob Energy AS | Administrative & support | 2015 |
| Safemc AS | Wholesale & retail | 2023 |
| Safespring AS | Information & communication | 2016 |
| Safetel Holding AS | Financial services | 2014 |
| SAFN212 AS | Construction | 2018 |
| Saga Media Tech AS | Information & communication | 2018 |
| Saga Scholarships AS | Administrative & support | 2022 |
| Sagatti Invest AS | Other services | 2022 |