| Tristein Eiendom AS | Real estate | 2018 |
| Troll Trading AS | Real estate | 1994 |
| Trollbu Invest Limited Nuf | Financial services | 2007 |
| Trollkom Anlegg AS | Information & communication | 2021 |
| Trollkom AS | Professional & scientific | 2019 |
| Trond Olsen Mur & Flis AS | Construction | 2014 |
| Trond Rønbeck Consulting AS | Education | 2014 |
| True Nordic Supplements AS | Wholesale & retail | 2026 |
| Tryggheim AS | Professional & scientific | 2014 |
| Trygstua AS | Real estate | 2026 |
| TS Marine AS | Wholesale & retail | 2025 |
| TTM Helpco AS | | 2025 |
| Tuagita Invest AS | Real estate | 2009 |
| Turbo Artist AS | Arts & recreation | 2004 |
| Turkish Diamond Barbers AS | Other services | 2024 |
| Tusseveien Terrasse AS | Real estate | 2021 |
| TV13 Holding AS | | 2025 |
| Tverkjegla AS | Real estate | 2005 |
| Twenty Ten Management AS | Information & communication | 2020 |
| TWG Invest AS | Financial services | 2016 |
| TX2 Eiendom AS | Real estate | 2019 |
| TYR7 Holding AS | Professional & scientific | 2024 |
| Tyra Holding AS | Real estate | 2020 |
| Tyre Protector Norge AS | Wholesale & retail | 2005 |
| Tømrer Tommy Wik Olsen AS | Construction | 2017 |
| Tømrermester Crawfurd AS | Construction | 2014 |
| Tømrernes Feriehjem AS | Real estate | 2021 |
| Tømrernes Feriehjem Holding AS | Real estate | 2021 |
| Uchange AS | Professional & scientific | 2026 |
| Ulle Holding AS | Health & social care | 1998 |
| Ullerud Gård AS | Real estate | 2022 |
| Ullerudbakken 31 AS | Real estate | 1988 |
| Ullerudveien 10 AS | Real estate | 2017 |
| Ultimat Artist AS | Arts & recreation | 2012 |
| Umi Eiendom AS | Real estate | 1990 |
| Universal Flow AS | Education | 2025 |
| Unoflow AS | Wholesale & retail | 1990 |
| Urban Sports AS | Wholesale & retail | 2024 |
| Usd Holding AS | Real estate | 2021 |
| Uteanlegg AS | Administrative & support | 2005 |
| Utstyrsutleie AS | Administrative & support | 2026 |
| Uvaag Elektro AS | Construction | 2018 |
| Uvaag Invest AS | Real estate | 2021 |
| V1 Nordic AS | Administrative & support | 2017 |
| Vahine Invest AS | Real estate | 2014 |
| Vaitex AS | Construction | 2022 |
| Valentine Invest AS | Real estate | 2020 |
| Valori AS | Information & communication | 2022 |
| Valori Care AS | Information & communication | 2023 |
| Valoro AS | Information & communication | 2024 |
| Valsø Holding AS | Real estate | 2005 |
| Vannverksveien Vann- Og Avløpslag AS | Water & waste | 2013 |
| VANNVERKSVEIEN43-DRØBAK-VEILAG SA | Real estate | 2024 |
| Varmefag Nettbutikk AS | Wholesale & retail | 2025 |
| Varmefag, Varme & Design AS | Administrative & support | 2005 |
| Vaskebjørn AS | Administrative & support | 1992 |
| Vconsult AS | Information & communication | 2016 |
| Vedhav AS | Professional & scientific | 2020 |
| Vedlikeholdsforvaltning AS | Real estate | 2022 |
| Vedskjulet Holding AS | Real estate | 2020 |
| Vekst Media AS | Wholesale & retail | 2023 |
| Velco Eiendom AS | Real estate | 2019 |
| Vembstad Holding AS | | 2023 |
| Ventirens AS | Construction | 2012 |
| Ventre AS | | 2016 |
| Venøy Maskin AS | Wholesale & retail | 2018 |
| Vesper AS | Professional & scientific | 2024 |
| Vestbyveien 42C AS | Real estate | 2019 |
| Veterinær August Reierstad AS | Professional & scientific | 2025 |
| Vi Sushi & Wok AS | Hospitality | 2018 |
| Viamatic AS | Construction | 2016 |
| Vibe-Studio AS | Arts & recreation | 2025 |
| Vier Skog & Utmark AS | Real estate | 2020 |
| Vikeby Interiørarkitektur AS | Professional & scientific | 2021 |
| Viken Brannsikkerhet AS | Professional & scientific | 2020 |
| Viken Bygg Og Rehabilitering AS | Construction | 2023 |
| Viken Byggpartner AS | Construction | 2020 |
| Viken Helse Og Omsorg AS | Health & social care | 2021 |
| Viken Næringseiendom AS | Professional & scientific | 2001 |
| Viken Property AS | Real estate | 2017 |
| Viking Spirit AS | Wholesale & retail | 2022 |
| Viking Vodka AS | Wholesale & retail | 2002 |
| Villamar AS | Real estate | 2000 |
| Villamar Eiendom AS | Real estate | 2022 |
| Villamar Holding AS | | 2026 |
| Villamar Subco AS | | 2026 |
| Vimpelfabrikken AS | Real estate | 1954 |
| Vincent AS | Financial services | 2007 |
| Vindfangeren AS | Real estate | 2008 |
| Vindfangeren Løft Og Båtservice AS | Arts & recreation | 1989 |
| VIP24 AS | Transport & logistics | 2021 |
| Vipra AS | Real estate | 2018 |
| Viratech AS | Wholesale & retail | 2022 |
| Virre Vapp AS | Professional & scientific | 1999 |
| Visit Drøbak AS | Administrative & support | 2017 |
| Visk Holding AS | | 2025 |
| Visuell Natur AS | Information & communication | 2011 |
| Vitacure AS | Manufacturing | 2016 |
| Vitalo AS | Health & social care | 2014 |
| Vizahl AS | Wholesale & retail | 2015 |