| Norwegian Green Innovation AS | Professional & scientific | 2020 |
| NTS Skilled People & Resources AS | Administrative & support | 1993 |
| Olsen Group AS | Agriculture & fishing | 2021 |
| Opphørssalg AS | Wholesale & retail | 2023 |
| Oppigard V HMC AS | Real estate | 2015 |
| Ora.-Eiendom AS | Real estate | 2023 |
| Ora.-Holding AS | Real estate | 2023 |
| Oscar Invest AS | Real estate | 1991 |
| Planhuset AS | Professional & scientific | 2008 |
| Point Holding AS | Professional & scientific | 2007 |
| Quixotic AS | Information & communication | 2024 |
| Refsdal Eiendom Da | Agriculture & fishing | 2024 |
| Refsdal Treindustri AS | Wholesale & retail | 1998 |
| Risq AS | Professional & scientific | 2025 |
| Roa Gruppen AS | Real estate | 2022 |
| Roger Andersen Invest AS | | 2022 |
| RTH Eiendom AS | Real estate | 2018 |
| Ruk Og Kruk Holding AS | | 2026 |
| Røsvik AS | Real estate | 2014 |
| Røsvik Invest AS | | 2021 |
| Samhold Holding AS | Arts & recreation | 2011 |
| Sand Byggtjenester AS | Construction | 2024 |
| Sjøsiden Valle AS | Real estate | 2021 |
| Skarpodde & Sønn AS | Wholesale & retail | 2009 |
| Skippergata 12 Eiendom AS | Real estate | 2008 |
| Skretteberg AS | Information & communication | 2026 |
| Skylin Invest AS | | 2025 |
| Sputniks Trafikk Og Musikk AS | Arts & recreation | 1991 |
| Stasjonsstua Da | Manufacturing | 1999 |
| Storbukås Betong AS | Construction | 2012 |
| Strand Bygg Og Anlegg AS | Construction | 2019 |
| Stranna Rehabilitering AS | Health & social care | 2014 |
| Sætreveien Veilag | Public administration | 2025 |
| Tech Venture AS | Information & communication | 2001 |
| Tecnico AS | Manufacturing | 2013 |
| Tele-Tur AS | Administrative & support | 1985 |
| Teo-Eiendom AS | Real estate | 1986 |
| Tereveien 10 Da | Real estate | 1997 |
| Time Film AS | Information & communication | 2018 |
| Toke Stranna AS | Real estate | 2008 |
| Tveit & Sønn Tømmerhåndtering Da | Agriculture & fishing | 1995 |
| Tyke Eiendom AS | Real estate | 2007 |
| Tørdalsveien 18 Eiendom AS | Real estate | 2020 |
| V. Opsahl Skogsdrift AS | Agriculture & fishing | 2012 |
| Vde Holding AS | Wholesale & retail | 2022 |
| Venli's AS | Wholesale & retail | 2023 |
| Vesternesveien Veilag SA | Real estate | 2018 |
| Vestmar Eiendom AS | Real estate | 2006 |
| Vestmar Regnskap AS | Professional & scientific | 2000 |
| Vestmar Service AS | Administrative & support | 2015 |
| Vestmar Transport AS | Transport & logistics | 2006 |
| Vestmargruppen AS | Transport & logistics | 2009 |
| Vikheia Holding AS | Construction | 2019 |
| Voje Camping AS | Hospitality | 2019 |
| Voje Camping Holding AS | Hospitality | 2022 |
| Vågsland Fjellboring AS | Construction | 2020 |
| Vøllestad Elektroinstallasjon AS | Construction | 2023 |
| Wingereid Maskin AS | Construction | 2019 |
| Wingereidgruppen AS | | 2026 |
| Åse-Vøllestad Skogen AS | Agriculture & fishing | 1898 |
| Øverdal Invest AS | Real estate | 2004 |
| Øverdal Maskin AS | Construction | 2000 |
| Øverdal Stutteri Da | Agriculture & fishing | 2009 |
| Øvre Bråten Gård AS | Agriculture & fishing | 2014 |