| PMS Holding AS | Real estate | 2025 |
| Primero Holding AS | Wholesale & retail | 2017 |
| Pro Parkettsliperi AS | Construction | 2020 |
| Proff-Service AS | Administrative & support | 2017 |
| R-Metall Eiendom AS | Real estate | 2020 |
| R.M. Eiendom AS | Real estate | 2007 |
| R.M. Holding AS | Real estate | 2005 |
| Raa Brewing Company AS | Manufacturing | 2018 |
| Rabben 3 AS | Real estate | 2007 |
| Radio Øst AS | Information & communication | 2019 |
| Raskar AS | Information & communication | 2019 |
| Redningsverket AS | Transport & logistics | 2001 |
| Redningsverket Utleie AS | Administrative & support | 2016 |
| Rek AS | Manufacturing | 1998 |
| Remi Invest AS | Real estate | 2005 |
| Renholdspartner Østfold AS | Administrative & support | 2025 |
| Rislaa Bjåland Holding AS | | 2019 |
| RL Media AS | Professional & scientific | 2012 |
| Roar F. Andreassen Kran Og Transport AS | Transport & logistics | 2024 |
| Roar Paulsrud AS | Manufacturing | 1985 |
| Roar Paulsrud Eiendom AS | Real estate | 1994 |
| Roar Stang Kjøtt AS | Manufacturing | 2005 |
| Rolvsøy Metallindustri AS | Manufacturing | 2000 |
| Rothe Capital Holding AS | | 2018 |
| RP Prosjekt AS | Real estate | 2006 |
| RT Prosjektconsult AS | Professional & scientific | 2025 |
| Ruma Eiendomsutvikling AS | Real estate | 2002 |
| Rygge Varebilinnredning AS | Wholesale & retail | 2018 |
| Rygge Varebilinnredning Holding AS | Wholesale & retail | 2022 |
| Råde Bakeri Utsalg AS | Wholesale & retail | 2010 |
| Råde Bilservice AS | Other services | 2020 |
| Råde Bilservice Holding AS | Real estate | 2021 |
| Råde Bilskadesenter AS | Other services | 2012 |
| Råde Blomster AS | Wholesale & retail | 2013 |
| Råde Bøndernes Hus SA | Real estate | 2011 |
| Råde Elektro AS | Construction | 1996 |
| Råde Fjernvarme AS | Energy | 2006 |
| Råde Fundament Og Anlegg AS | Construction | 2004 |
| Råde Glass AS | Wholesale & retail | 2021 |
| Råde Handyman AS | Construction | 2026 |
| Råde Innredning AS | Manufacturing | 2022 |
| Råde Lakkering AS | Other services | 2022 |
| Råde Landbruksservice Ans | Manufacturing | 1989 |
| Råde Last Og Hydraulikk AS | Other services | 2016 |
| Råde Legesenter AS | Health & social care | 2022 |
| Råde Og Christensen Bakeri Og Konditori AS | Manufacturing | 1991 |
| Råde Produksjon AS | Manufacturing | 2002 |
| Råde Regnskap AS | Professional & scientific | 2017 |
| Råde Rep & Montering AS | Manufacturing | 1991 |
| Råde Transportservice AS | Transport & logistics | 2025 |
| Råde Vertshus AS | Hospitality | 2009 |
| Råde Veterinærpraksis AS | Professional & scientific | 1998 |
| Råzink AS | Manufacturing | 2018 |
| Rød Søndre AS | Arts & recreation | 2020 |
| Rødveien Vann Og Avløp SA | Construction | 2021 |
| Røsholt AS | Construction | 2019 |
| Røtnebakken AS | Professional & scientific | 1998 |
| Sagatun Eiendom AS | Real estate | 1997 |
| Saltnesveien Eiendom AS | Real estate | 2006 |
| Sarpsborgveien Legedrift AS | Health & social care | 2014 |
| Sebastian Aslaksrud AS | Education | 2020 |
| Sentrum Eiendom AS | Real estate | 1997 |
| Seter Graving Og Utemiljø AS | Construction | 2020 |
| Sezar Bakeri & Grossist AS | Manufacturing | 2013 |
| Silver Bygg & Montasje AS | Construction | 2013 |
| Simco AS | Other services | 1990 |
| Siril Helljesen Dressage AS | Education | 2013 |
| Skamsar Dagligvare AS | Wholesale & retail | 2019 |
| Skjærgårdsbrygger AS | Manufacturing | 2003 |
| Skog Og Nett AS | Agriculture & fishing | 2013 |
| Skolt Betong AS | Real estate | 1987 |
| Skåda AS | | 2025 |
| Smilnorge AS | Health & social care | 2021 |
| Små Spirer Gårdsbarnehage AS | Education | 2021 |
| Snæbbus Hair Råde Torg AS | Other services | 2013 |
| Solberg Hage & Anlegg AS | Construction | 2015 |
| Solberg Hage & Anlegg Ny AS | Construction | 2026 |
| Solberggården Eiendom AS | Real estate | 1995 |
| Solberggården Helsesenter AS | Arts & recreation | 2017 |
| Solberggården Holding AS | Arts & recreation | 2017 |
| Solgård Holding AS | Real estate | 2012 |
| Solgårds Auto AS | Other services | 2012 |
| Solix Trading AS | Other services | 2017 |
| Solveigs Pizza Råde AS | Hospitality | 2014 |
| Sportworks AS | Arts & recreation | 2026 |
| SR Bygg Og Anlegg AS | Construction | 2015 |
| Stall Robmarker Internasjonal Da | Administrative & support | 1997 |
| Steinar Meum AS | Wholesale & retail | 1989 |
| Sten På Sten AS | Administrative & support | 2022 |
| Stenebakken Va Utbygging SA | Construction | 2025 |
| Stensrød Hagevanningslag SA | Construction | 1978 |
| Stiil Design AS | Professional & scientific | 2025 |
| Stiil Group AS | Professional & scientific | 2023 |
| Strømnes Transport AS | Transport & logistics | 2016 |
| Strømnesåsen AS | Real estate | 2007 |
| Styrk Revisjon AS | Professional & scientific | 2025 |
| Sunderotic Ans | Wholesale & retail | 2004 |
| Swo Holding AS | | 2025 |
| Tala Holding AS | Financial services | 2015 |
| Tarv AS | Professional & scientific | 2022 |