| Phoenix Prosjekt AS | Professional & scientific | 2012 |
| Pirtz AS | Wholesale & retail | 2010 |
| R.S. Holding AS | Construction | 2016 |
| Ramsøe Vann Og Varme AS | Construction | 2021 |
| Ravnevand Holding AS | | 2026 |
| RB Holding AS | Wholesale & retail | 2005 |
| Rectus Holding AS | Wholesale & retail | 2005 |
| Regina Mentoring AS | Real estate | 2017 |
| Rehabilitering Spesialisten AS | Administrative & support | 2024 |
| Risan Holding AS | Real estate | 2020 |
| Romslig På Roth AS | Health & social care | 2026 |
| Ronnja Eiendom AS | Real estate | 2013 |
| RS Innovation AS | Financial services | 2017 |
| RTB Møysundet AS | | 2026 |
| Seal AS | Professional & scientific | 1997 |
| Senspipe AS | Professional & scientific | 2022 |
| Sibbern Eiendom AS | Real estate | 2019 |
| Sibbern Holding AS | Real estate | 2007 |
| Sibbern Invest AS | Real estate | 2013 |
| Simensen Consultancy Services Da | Professional & scientific | 2018 |
| Simplifywise AS | Information & communication | 2023 |
| Sivilingeniør Stein Kjæve AS | Professional & scientific | 2006 |
| Skutebakken 2 AS | Real estate | 2013 |
| SL Produksjon AS | Information & communication | 2009 |
| Steinmiljø AS | Construction | 2011 |
| Steinmiljø Eiendom AS | Real estate | 2012 |
| Steinmiljø Holding AS | Construction | 2012 |
| Støtvig Hotel AS | Hospitality | 2012 |
| Støtvig Marina AS | Real estate | 2012 |
| Sverre Kase AS | | 1976 |
| SW Holding AS | Real estate | 2012 |
| Techh AS | Information & communication | 2022 |
| Thacora Technology Ventures AS | Professional & scientific | 2014 |
| Thorvaldsen Larkollen AS | Wholesale & retail | 1998 |
| Tollefsrød Eiendom AS | Real estate | 2005 |
| Toto Holding AS | Real estate | 2000 |
| Toveien 4 AS | Real estate | 2012 |
| Tuteråsen Vann- Og Avløpslag SA | Water & waste | 2018 |
| U-Man Norge AS | Professional & scientific | 1990 |
| Varnaveien 1-3 AS | Real estate | 2020 |
| Veslemona AS | Mining & quarrying | 2015 |
| Vestby Industripark AS | Real estate | 2010 |
| Vevlene AS | Financial services | 2005 |
| Vifco AS | Wholesale & retail | 2006 |
| Wyrdal Holding AS | | 2022 |
| Wyrdal Invest AS | | 2022 |
| Xomeone AS | Professional & scientific | 2019 |