| Oen Invest AS | Financial services | 2009 |
| Og Skar AS | | 2022 |
| Oisann Engineering AS | Professional & scientific | 2016 |
| Olav Søreide AS | Arts & recreation | 1985 |
| Oldstein AS | | 2022 |
| Ole Torrissen Holding AS | | 2020 |
| Oltek AS | Health & social care | 2021 |
| On Off Eiendom AS | Real estate | 2006 |
| Opsasec AS | Professional & scientific | 2022 |
| Orion Bygg AS | Real estate | 1987 |
| Oslo Fit AS | Arts & recreation | 2024 |
| Oü Builder & Joilie | Construction | 2008 |
| Pace Fitness AS | Wholesale & retail | 2023 |
| Pace Sports Brands AS | Wholesale & retail | 2025 |
| Paradis Torg AS | Real estate | 2007 |
| Parkett.No AS | Wholesale & retail | 2016 |
| Paul Bygg AS | Construction | 2008 |
| Performance Consulting AS | Professional & scientific | 2017 |
| Pho Invest AS | Financial services | 2011 |
| PK Konsult AS | | 2021 |
| Pojosok AS | | 2024 |
| Prathiban Automation Solutions AS | Professional & scientific | 2026 |
| Pro Detailing AS | Manufacturing | 2017 |
| Proprieta Holding AS | | 2026 |
| Prothor SA | Real estate | 2022 |
| PS Holdings AS | | 2021 |
| Raggsteindalen Høyfjellstue AS | Hospitality | 2025 |
| Reinkind AS | Professional & scientific | 2007 |
| Renholdspartner Bergen AS | Administrative & support | 2025 |
| Retrain Brain AS | Information & communication | 2025 |
| Reviva Bygg AS | Construction | 2024 |
| Risk Management Holding AS | Professional & scientific | 2012 |
| Rivara Invest AS | | 2026 |
| RJV Eiendom AS | Real estate | 2023 |
| RJV Invest AS | Real estate | 2013 |
| Rockstar AS | | 2021 |
| Rolf Arne Invest AS | Financial services | 2006 |
| Rudi Rakner Holding AS | | 2025 |
| Runehand AS | Arts & recreation | 2026 |
| S.O Production AS | Information & communication | 2025 |
| SA Dolvikhaugene Huseierlag Felt B6 | Real estate | 2000 |
| SA Søreidneset Huseierlag | Real estate | 2005 |
| Safe Holdco AS | Wholesale & retail | 2020 |
| Safechoice Clinic & Research AS | Health & social care | 2023 |
| Safegroup Ansatte 4 AS | Financial services | 2020 |
| Safegroup Ansatte 5 AS | Financial services | 2021 |
| Safegroup Ansatte 6 AS | Financial services | 2022 |
| Safegroup Ansatte AS | Wholesale & retail | 2017 |
| Safegroup Ansatte II AS | Financial services | 2018 |
| Safegroup Ansatte III AS | Financial services | 2019 |
| Safegroup AS | Wholesale & retail | 2017 |
| Samba Service Og Invest AS | Administrative & support | 2001 |
| Sandane Eigedom AS | Real estate | 2019 |
| Sarepta Invest AS | Real estate | 2005 |
| SB Bygg Og Anlegg AS | Construction | 2024 |
| Sbe AS | | 2020 |
| Schau AS | Real estate | 1970 |
| Scott Nicolay Holding AS | | 2025 |
| Scott Solutions AS | Professional & scientific | 2025 |
| Sdcc Solutions AS | Professional & scientific | 2017 |
| Sea Farm Innovations AS | Agriculture & fishing | 2021 |
| Seagate AS | Professional & scientific | 2017 |
| Sebra AS | Wholesale & retail | 1992 |
| Sech Invest AS | Real estate | 2015 |
| Secura Insight AS | Information & communication | 2023 |
| Sei Invest AS | Professional & scientific | 2005 |
| Selle & Partners AS | Professional & scientific | 2020 |
| Sema Eiendom AS | Real estate | 1996 |
| Showit Studio AS | Professional & scientific | 2022 |
| Simvesth AS | | 2025 |
| Sivertsen Kapital AS | Real estate | 2019 |
| Skaar-Ottesen Holding AS | Wholesale & retail | 2025 |
| Skandinav Energy AS | Professional & scientific | 2018 |
| Skeide Holding AS | Financial services | 2005 |
| Skipavika Eiendom AS | Real estate | 2021 |
| Skjulhaug Fiskeri AS | Agriculture & fishing | 2025 |
| Skranevannet Huseierlag SA | Real estate | 1991 |
| Skranevegen 4 AS | | 2025 |
| Skranevegen Eiendom AS | Real estate | 2021 |
| Smart Dekk AS | Other services | 2016 |
| Smart-Bo AS | Real estate | 2023 |
| Smartcon AS | Professional & scientific | 2018 |
| SMB Konsult AS | Professional & scientific | 2024 |
| Snurre Sprett AS | | 2025 |
| Sognesjø Holding AS | Construction | 2005 |
| Sohome AS | Information & communication | 2004 |
| Solheims Holding AS | Professional & scientific | 2023 |
| Soltua AS | | 2019 |
| Solåsen Holding AS | | 2024 |
| Somakrov Holding AS | Financial services | 2008 |
| Sommerlyst AS | Wholesale & retail | 2015 |
| Sori Invest AS | Real estate | 2020 |
| Stamsneset 65 AS | Real estate | 2017 |
| Start and Shine Holding AS | Professional & scientific | 2021 |
| Steingard Capital AS | Financial services | 2011 |
| Steinsvikgrend Båtlag SA | Real estate | 2022 |
| Steinsvikvegen 260 AS | Real estate | 2020 |
| Steinsvikvegen 30 AS | Real estate | 2018 |
| Steinsvikvegen Park AS | Real estate | 2025 |
| Stenevik Aviation AS | | 2024 |