| Om 1 Eiendom AS | Real estate | 2020 |
| Om Creator AS | Health & social care | 2019 |
| Om Hjelp AS | Health & social care | 2020 |
| Pmi Invest AS | | 2021 |
| Ragnhild Vinsvold Holding AS | | 2021 |
| Ravit Holding AS | Financial services | 2005 |
| Reistad Grønn Invest AS | Real estate | 2021 |
| Reistad Invest AS | Real estate | 2006 |
| Rich Invest AS | | 2015 |
| Riseve AS | Information & communication | 2026 |
| Ross Consult AS | Professional & scientific | 2023 |
| Røtter Holding AS | Financial services | 2005 |
| S Espedal Holding AS | | 2021 |
| Sasogust AS | | 2017 |
| Scalemoon Studios AS | Information & communication | 2025 |
| Sentima AS | Wholesale & retail | 2015 |
| SKL Eiendom AS | Real estate | 2021 |
| Slagverkduo En Er En Ans | Arts & recreation | 2010 |
| Snowride Transport AS | Transport & logistics | 2015 |
| Songbook AS | Information & communication | 2021 |
| Speedoptions AS | Wholesale & retail | 2005 |
| Spinalkirurgi Nuf | Health & social care | 2005 |
| Splitter Pine AS | | 2024 |
| Stanley AS | Real estate | 2004 |
| Sterk Eiendom AS | | 2018 |
| Stilheim AS | Wholesale & retail | 2025 |
| Stuvs Geo AS | Professional & scientific | 2025 |
| Suffix Tree AS | | 2022 |
| Svarthavna AS | Professional & scientific | 2012 |
| Svenibona AS | | 2016 |
| Sørum Brødrene Gartneri Da | Agriculture & fishing | 1995 |
| Sørum Enterprises AS | | 2024 |
| TBG Eiendom AS | Real estate | 2007 |
| Team Otto AS | Construction | 2001 |
| Thokama AS | Real estate | 2009 |
| Tomy Holding AS | Real estate | 2015 |
| Total Industrimontasje AS | Construction | 2014 |
| Totius Management AS | Professional & scientific | 2018 |
| Trappe Snekkeriet AS | Construction | 2023 |
| Trust Technologies AS | Construction | 2019 |
| United Veterans Motorcycle Club Chapter a Region East | Other services | 2012 |
| Utsikten Barnehage SA | Education | 2005 |
| Utsikten Invest AS | Real estate | 2005 |
| Vanraj Holding AS | | 2025 |
| Veum Holding AS | | 2010 |
| Via Flakoll AS | | 2013 |
| Viker Drift AS | Real estate | 2017 |
| Vivea AS | | 2024 |
| Vivea Made Da | Professional & scientific | 2025 |
| Vuckic Eiendom AS | Real estate | 2026 |
| Vuckic Holding AS | | 2020 |
| Webhuset Da | Information & communication | 1999 |
| Wikato AS | Financial services | 2012 |
| Ypsilon CRM AS | Professional & scientific | 2022 |
| Zulu Holding AS | Information & communication | 2018 |
| Øst-Eiendom AS | Real estate | 2021 |
| Øst-Holding AS | Real estate | 2019 |