| Relasjonskoden Ans | Professional & scientific | 2025 |
| Rem-In AS | Real estate | 2017 |
| Rema Distribusjon Import AS | Wholesale & retail | 2000 |
| Remake IT AS | Information & communication | 2020 |
| Remb Invest AS | | 2020 |
| Remco AS | Real estate | 1987 |
| Remco Holding AS | Financial services | 2005 |
| Reme & Mikkelsen Ans | Wholesale & retail | 2003 |
| Reme AS | Real estate | 2005 |
| Reme Bygg AS | Financial services | 2005 |
| Reme Eiendom AS | Real estate | 2009 |
| Reme Entreprenør Ans | Construction | 1991 |
| Reme Holding AS | Real estate | 2005 |
| Reme Management AS | Financial services | 2005 |
| Reme Regnskap AS | Professional & scientific | 2005 |
| Remefjord AS | Real estate | 2016 |
| Remegruppen AS | Real estate | 2020 |
| Remegården 2 AS | Agriculture & fishing | 2021 |
| Remeteam AS | | 2026 |
| Remicon AS | Real estate | 2016 |
| Remium AS | Real estate | 2020 |
| Remro AS | Real estate | 2005 |
| Remtek AS | Information & communication | 2024 |
| Ren & Klar AS | Administrative & support | 2026 |
| Ren Arkitektur AS | Professional & scientific | 1986 |
| Renates Dag Spa AS | Other services | 2002 |
| Renates Holding AS | Other services | 2005 |
| Renates Hud & Make Up AS | Other services | 2015 |
| Rendez-Vous AS | Other services | 2024 |
| Rendezvous Point Da | Arts & recreation | 2012 |
| Renes II AS | Real estate | 2023 |
| Rengjøringsservice Anno 1975 AS | Administrative & support | 2012 |
| Renglede.No AS | Administrative & support | 2017 |
| Renhold Sør AS | Administrative & support | 2022 |
| Rentalpartner AS | Arts & recreation | 2013 |
| Renvik AS | Real estate | 2016 |
| Repstad Anlegg 2 AS | Construction | 2000 |
| Repstad Anlegg AS | Construction | 1981 |
| Rer Invest AS | | 2025 |
| Res 100 AS | Real estate | 2024 |
| Resindekke Norge AS | Wholesale & retail | 2025 |
| Resitec Advanced Battery Recycling AS | Water & waste | 2021 |
| Resitec AS | Mining & quarrying | 1999 |
| Resla AS | Real estate | 2019 |
| Resonance Ventures AS | | 2026 |
| Respirare Accounting AS | Professional & scientific | 2021 |
| Respirare AS | Information & communication | 2021 |
| Respirare Cfo Partner AS | Professional & scientific | 2025 |
| Respirare Consulting AS | Professional & scientific | 2021 |
| Respirare Digihub AS | Information & communication | 2026 |
| Respirare Dynamics Consulting AS | Professional & scientific | 2024 |
| Respirare Forest Solutions AS | Information & communication | 2024 |
| Respirare HR - HMS Partner AS | Professional & scientific | 2026 |
| Respirare Intelligence AS | Information & communication | 2025 |
| Respirare Solutions AS | Professional & scientific | 2013 |
| Respirare Systems AS | Information & communication | 2023 |
| Restaurant Amigos AS | Hospitality | 1989 |
| Restaurant Sjøhuset Drift AS | Hospitality | 2004 |
| Retail Innovation AS | Professional & scientific | 2022 |
| Retail Partners AS | Real estate | 2009 |
| Rethink Pharma AS | Wholesale & retail | 2021 |
| Rett Fra Rio Estetisk Medisin AS | Other services | 2025 |
| Retterstøl AS | Professional & scientific | 2023 |
| Retura Sør AS | Water & waste | 2002 |
| Returkraft AS | Water & waste | 2007 |
| Rev Agenturer AS | Wholesale & retail | 2013 |
| Revia AS | Professional & scientific | 2024 |
| Revisjon Sør AS | Professional & scientific | 1987 |
| Revisjonsfirma Eliassen AS | Professional & scientific | 2015 |
| Revisjonsfirma Omsland AS | Professional & scientific | 2015 |
| Revisjonsfirma Rolf Birkeland AS | Professional & scientific | 2005 |
| Revisjonsfirma Rune Svendsen AS | Professional & scientific | 2017 |
| Revisjonsfirma Torbjørn Salvesen AS | Professional & scientific | 2005 |
| Revisorgruppen Agder AS | Professional & scientific | 2002 |
| Reviver AS | Information & communication | 2023 |
| Revolver Holding AS | Professional & scientific | 2017 |
| Rex Invest AS | Financial services | 2005 |
| Reyooz AS | Wholesale & retail | 2024 |
| Rez AS | Hospitality | 2025 |
| RFM Holding AS | Wholesale & retail | 2021 |
| Rform AS | Real estate | 2016 |
| RG Finans AS | | 2024 |
| RG Revisjon AS | Financial services | 2005 |
| RH Bygg Og Rehabilitering AS | Construction | 2025 |
| RH Kapital AS | | 2024 |
| Rhe Invest AS | Financial services | 2005 |
| RHN Invest AS | Financial services | 2005 |
| Rhodne Holding AS | Real estate | 2021 |
| Riad Holding AS | | 2025 |
| Ribe Betong AS | Manufacturing | 2005 |
| Ribe Eiendom Ans | Real estate | 1997 |
| Ribe Holding AS | Financial services | 2005 |
| Ribe Invest AS | | 2012 |
| Richard AS | Wholesale & retail | 2024 |
| Richard Strømme Holding AS | Construction | 2005 |
| Rico Invest AS | Real estate | 2005 |
| Rige Bil Eiendom AS | Real estate | 2004 |
| Rige Golf AS | Arts & recreation | 2024 |
| Rigedalen 10 AS | Other services | 2004 |
| Rigedalen 40 AS | Real estate | 2004 |