| Nybo Kjøkken AS | Manufacturing | 2014 |
| Olav Tryterud Holding AS | Other services | 2019 |
| Opperud Transport Da | Transport & logistics | 2010 |
| Pall Norge AS | Wholesale & retail | 1971 |
| Pjaaka AS | Financial services | 2005 |
| Pro Body Da | Wholesale & retail | 2005 |
| Remedy Media AS | Professional & scientific | 2017 |
| Rense Og Miljøanlegg Ans | Water & waste | 2014 |
| Riggon AS | Administrative & support | 2025 |
| Ring Bil Ans | Other services | 1989 |
| Ringerike Hageservice AS | Administrative & support | 2012 |
| RM Plan AS | Construction | 2024 |
| RS Konsulent Og Byggtjenester AS | Professional & scientific | 2023 |
| RXC AS | Construction | 2022 |
| Rørleggermester Lien AS | Construction | 2013 |
| S.L.T AS | Administrative & support | 2022 |
| Salgsservice AS | Wholesale & retail | 2001 |
| Scimec AS | Information & communication | 2004 |
| Scrocchia 80 AS | Manufacturing | 2024 |
| Scrocchia Food Trading AS | Wholesale & retail | 2026 |
| Scrocchia Holding AS | | 2026 |
| Semmen Bil Og Maskinforretning A/S | Wholesale & retail | 1983 |
| Semmen Eiendom AS | Real estate | 2006 |
| Sigdal Renhold AS | Administrative & support | 2012 |
| Sigrids Renhold AS | Administrative & support | 1989 |
| Sjaamo Holding AS | | 2026 |
| Skamarken AS | Information & communication | 2003 |
| Skaug & Christoffersen AS | Construction | 2019 |
| Skistad Transport AS | Transport & logistics | 2006 |
| Skjærdalen Eiendom AS | Real estate | 1915 |
| Skjærdalen Holding AS | Real estate | 2021 |
| Skjærdalen Skog AS | Agriculture & fishing | 2025 |
| Skjærdalen Skogtjenester AS | Agriculture & fishing | 2022 |
| Skogsbilveglaget Usl SA | Real estate | 1984 |
| Slice 80 AS | | 2026 |
| Soppfarm AS | Agriculture & fishing | 2024 |
| Spyle & Rørleggervakta AS | Construction | 2026 |
| STABELLSGT.10B AS | Real estate | 2009 |
| Subsea Chokes International Holding AS | | 2011 |
| Tbs-Holding AS | Construction | 2024 |
| Thor Henrik Jensen Eiendom AS | Real estate | 2006 |
| Torgersbråten AS | Real estate | 1986 |
| Tyristrand Auto AS | Other services | 2017 |
| Tyristrand Bensin & Service AS | Wholesale & retail | 2007 |
| Tyristrand Eiendom AS | Real estate | 1996 |
| Tyristrand Graveservice Da | Construction | 2006 |
| Tyristrand Invest AS | Real estate | 2022 |
| Tyristrand Legekontor AS | Health & social care | 2018 |
| Tyristrand Næringspark AS | Real estate | 2020 |
| Tyristrand Selvvask AS | Other services | 2025 |
| Tyristrand Utmarkslag SA | Agriculture & fishing | 1950 |
| Tyristrand Vannverk SA | Water & waste | 1954 |
| Ulrichsen AS | Information & communication | 2013 |
| V & S Maskin Da | Administrative & support | 2007 |
| VB Hårstudio AS | Other services | 2025 |
| Vesetrud Allo Gård Da | Agriculture & fishing | 2023 |
| Vigdal Trevare AS | Manufacturing | 2016 |
| Vpxo Invest AS | Real estate | 2021 |
| Wagyu of Norway AS | Administrative & support | 2013 |
| Øyvind Gulliksen AS | Manufacturing | 2014 |