| Snuppa Invest AS | Real estate | 2015 |
| Soft Living AS | Manufacturing | 2014 |
| Solid Balanse AS | | 2011 |
| Solve AS | Professional & scientific | 1995 |
| Spålen Generasjon AS | Financial services | 2017 |
| Stall Grini Trading AS | Agriculture & fishing | 2007 |
| Startup Extreme AS | Professional & scientific | 2012 |
| Startup International AS | Education | 2012 |
| Stavåsskogen Da | Agriculture & fishing | 2006 |
| Stealth AS | | 2026 |
| Steelco-Teknikk AS | Wholesale & retail | 2005 |
| Stenproduksjon AS | Mining & quarrying | 2023 |
| Stjernhof Invest AS | | 2021 |
| Stokland Berg Holding AS | | 2026 |
| Stonegarden AS | | 2019 |
| Storyfly AS | Information & communication | 2023 |
| Streamlines AS | Manufacturing | 2020 |
| Studio Peso AS | | 2024 |
| Stvdio AS | Information & communication | 2024 |
| Sun Capital AS | Professional & scientific | 2000 |
| Sunway AS | Financial services | 2017 |
| Superbra Holding AS | | 2025 |
| Sva Marga AS | Professional & scientific | 2011 |
| Svae Maskin AS | Real estate | 1988 |
| Syntax- AS | Professional & scientific | 2004 |
| Systemkompaniet AS | Information & communication | 1999 |
| Søraas Holding AS | Professional & scientific | 2018 |
| Tabraa Invest AS | Wholesale & retail | 2018 |
| Tandberg Helse AS | Health & social care | 2007 |
| Tandem Holding AS | Real estate | 1999 |
| Tannlegen Rett Hjem AS | Health & social care | 2020 |
| Teg Eiendom AS | Wholesale & retail | 1964 |
| Teg Handel AS | Wholesale & retail | 2025 |
| Teg Mat AS | Wholesale & retail | 2013 |
| Teknisk Presse AS | Real estate | 2004 |
| Teriamed AS | Wholesale & retail | 2025 |
| Thim Invest AS | Real estate | 2013 |
| Thith Invest AS | Financial services | 2005 |
| Thomas Engli Baasnes Holding AS | | 2022 |
| Thrimo Holding AS | Real estate | 2005 |
| Tigerland AS | Real estate | 2016 |
| Tilrettelagt AS | Professional & scientific | 2015 |
| Timeregnskap AS | Information & communication | 2005 |
| Tipping Point AS | Professional & scientific | 2019 |
| Titan Vakt Og Beredskap AS | Administrative & support | 2026 |
| Tjas AS | Financial services | 2017 |
| Tollbugt. AS | Real estate | 1996 |
| Tot Holding AS | | 2005 |
| Trak Holding AS | Financial services | 1985 |
| Truckimport AS | Professional & scientific | 2005 |
| TRX Therapeutics AS | | 2021 |
| Tvp-Mediainvest AS | Real estate | 2005 |
| TZB AS | | 2024 |
| Universelt Holding AS | | 2013 |
| Vaktek AS | | 2022 |
| Varmot AS | | 2024 |
| Vatne Invest & Consulting AS | Real estate | 2016 |
| Velocity AS | Information & communication | 2012 |
| Veni Vidi Void AS | Information & communication | 2024 |
| Versto Kaasa Rit Ans | Professional & scientific | 1996 |
| Vibra Holding AS | | 2020 |
| Viken Bodutleie Tranby AS | Real estate | 2021 |
| Vision of Energy AS | Mining & quarrying | 2000 |
| Viva Invest AS | | 2005 |
| Vossanut AS | Professional & scientific | 2022 |
| VVS Og Energi Consult AS | Professional & scientific | 2021 |
| Vårsol AS | Financial services | 2016 |
| Waken Group Holding AS | Information & communication | 2018 |
| Waran Consulting AS | Professional & scientific | 2019 |
| WHH Innovasjon AS | Professional & scientific | 2018 |
| Wicklund Eiendom AS | Agriculture & fishing | 2000 |
| Wien Invest AS | Professional & scientific | 2015 |
| Wigeland Invest AS | Professional & scientific | 2026 |
| Wizard Lords AS | | 2022 |
| Wuba Invest AS | Health & social care | 2018 |
| Wærsten Invest AS | | 2019 |
| Yetz Forsikring AS | Wholesale & retail | 2017 |
| Yetz Group AS | Wholesale & retail | 2016 |
| Zelow Invest AS | Real estate | 1999 |
| Zenta Invest AS | Professional & scientific | 1994 |
| Østern Brug AS | Real estate | 2005 |
| Østern Brug Ridesenter AS | Arts & recreation | 1999 |
| Østerås Invest AS | Real estate | 1999 |