| Total Skadeservice AS | Construction | 2010 |
| Totalbygg AS | Construction | 2020 |
| TR Tak Og Membran AS | Construction | 2016 |
| Tracz Holding AS | Financial services | 2015 |
| Trafikksikkerhet Norge AS | Professional & scientific | 2024 |
| Tritoria Finance AS | Other services | 2015 |
| Tritoria Holding AS | Real estate | 2015 |
| Triumph Dressage Ans | Arts & recreation | 2008 |
| Trollbygg Interiør AS | Construction | 2000 |
| Trollfugl Holding AS | Manufacturing | 2023 |
| Tronderøya AS | Real estate | 2009 |
| Tundis Holding AS | | 2025 |
| Tusenfryd AS | Arts & recreation | 2007 |
| Tyttebærlia AS | Real estate | 2018 |
| Tømrer Synnevåg AS | Construction | 2022 |
| Tømrermester Ingar Kristiansen AS | Construction | 2023 |
| U Holding AS | | 2023 |
| Ujamaa Foundation Ans | Professional & scientific | 2002 |
| Ulma Construction Norge AS | Administrative & support | 2022 |
| Uslugi Remontowo-Budowlane Naciej Pawel Matuszewski | Construction | 2013 |
| Utleiespesialisten AS | Real estate | 2023 |
| Valnord AS | Construction | 2026 |
| Valstrand Energi AS | Energy | 2021 |
| Valstrand Holding AS | Wholesale & retail | 2019 |
| Vansjø Eiendom AS | Real estate | 2022 |
| Varme- Og Miljøteknikk AS | Construction | 1990 |
| Veico AS | Wholesale & retail | 2016 |
| Veide Invest AS | | 2025 |
| Velarium AS | Construction | 2022 |
| Vera Utvikling AS | Construction | 2019 |
| Verkstedet Passiflora AS | Wholesale & retail | 2012 |
| Verpet AS | Real estate | 2018 |
| Verpet Kran Og Transport AS | Transport & logistics | 2026 |
| Verpet Utleie AS | Administrative & support | 2026 |
| Vestby Taxi AS | Transport & logistics | 2019 |
| Vigus AS | Administrative & support | 2019 |
| Viken Accounting Solutions AS | Professional & scientific | 2025 |
| Viken Betong AS | Construction | 2019 |
| Viken Business Solutions AS | Professional & scientific | 2021 |
| Viken Element AS | Wholesale & retail | 2007 |
| Viken Entreprenør AS | Construction | 2019 |
| Viken Montasje AS | Construction | 2019 |
| Viken Property Investment AS | Real estate | 2022 |
| Viken Service AS | Administrative & support | 2021 |
| Viken Tekniske AS | Construction | 2019 |
| Viken Vei Og Anlegg AS | Construction | 2019 |
| Viken-Gruppen AS | Construction | 2006 |
| Vikenbilsentral AS | Wholesale & retail | 2024 |
| Viking Rørleggerbedrift AS | Construction | 2024 |
| Viking Sprinkler AS | Construction | 2022 |
| Viking Totalentreprenør AS | Construction | 2026 |
| Vinmas AS | Wholesale & retail | 2006 |
| Vinter Visjon AS | Real estate | 2009 |
| Vinterblomst AS | Wholesale & retail | 2015 |
| Vinterbro AS | Arts & recreation | 2006 |
| Vinterbro Business Center AS | Real estate | 2010 |
| Vinterbro Bygg Og Vedlikehold AS | Construction | 2012 |
| Vinterbro Helse AS | Health & social care | 2026 |
| Vinterbro Klokker Og Smykker AS | Wholesale & retail | 2020 |
| Vinterbro Tannlegesenter AS | Health & social care | 2016 |
| Vinterbro Transport AS | Transport & logistics | 2018 |
| Virtabygg AS | Construction | 2012 |
| Visa Holding AS | Construction | 2019 |
| Visa Utvikling AS | Real estate | 2018 |
| Visiteurope AS | Professional & scientific | 2012 |
| Vm-Holding AS | | 2023 |
| Voestalpine High Performance Metals Norway AS | Wholesale & retail | 1970 |
| Volta AS | Wholesale & retail | 2013 |
| VS Anlegg AS | Construction | 2023 |
| VVS Teknikk AS | Construction | 2025 |
| Vvstrygg AS | Construction | 2024 |
| Våis AS | Arts & recreation | 2020 |
| Vålerveien 61 AS | Real estate | 2011 |
| Våtromskirurgen AS | Administrative & support | 2025 |
| W.H Holding AS | | 2024 |
| Waffle Factory AS | Wholesale & retail | 2008 |
| Wellness at Home AS | Wholesale & retail | 2024 |
| Wida Invest AS | Construction | 2017 |
| Wikholm Invest AS | | 2023 |
| Witul & Sønn AS | Construction | 2015 |
| Wizard Nuf | Information & communication | 2011 |
| Wollum Invest AS | | 2024 |
| Workntravel AS | Administrative & support | 2023 |
| X-Nergi AS | Professional & scientific | 2026 |
| Yeyophoto Freelance Øystein Holm Johansen | Information & communication | 2013 |
| Zumit AS | Professional & scientific | 2015 |
| Ås Taxi AS | Transport & logistics | 2019 |
| Åø Holding AS | | 2021 |
| Øran Holding AS | Real estate | 1996 |
| Østlandet Montering Og Service AS | Other services | 2019 |
| Øvre Holding AS | | 2023 |
| Øyvind Valø AS | Transport & logistics | 2009 |