| TSP Consulting AS | Real estate | 2021 |
| Tsy Holding AS | Real estate | 2021 |
| TT Apps AS | Information & communication | 2021 |
| TT Oculus Medicus AS | Health & social care | 2020 |
| Tuki Invest AS | Professional & scientific | 2024 |
| Tuominen Eiendom AS | Administrative & support | 2026 |
| Tuominen Invest AS | | 2026 |
| Tusj Og Tøys AS | Arts & recreation | 2026 |
| Twentyeight Holding AS | | 2022 |
| TWS Eiendom AS | Real estate | 2012 |
| Tyk Eiendom AS | Real estate | 2012 |
| Tyrkiatjenester AS | Health & social care | 2013 |
| Tyrkisk Kjøkken AS | Hospitality | 2015 |
| Thorvaldsen Transport A/S | Transport & logistics | 1988 |
| Tørfest AS | Professional & scientific | 2008 |
| Ugleveien 19 AS | Real estate | 2021 |
| Ull Holding AS | | 2018 |
| Ullar Holding AS | Real estate | 2007 |
| Ullern Eiendomsservice AS | Administrative & support | 2016 |
| Umi Company AS | Wholesale & retail | 2025 |
| Umpi Norge Da | Wholesale & retail | 1990 |
| Underholdningsuniverset AS | Arts & recreation | 2026 |
| Undertøyskuffen AS | Wholesale & retail | 2013 |
| Underverket AS | Hospitality | 2021 |
| Uni Consult AS | Professional & scientific | 1984 |
| Unicare Jeløy AS | Health & social care | 2001 |
| United Airlines, Inc. Nuf | Transport & logistics | 2022 |
| Universal AS | Construction | 1988 |
| Unnawind AS | Professional & scientific | 2026 |
| Uno Vita AS | Wholesale & retail | 2009 |
| Unravel AS | Information & communication | 2024 |
| Upnord AS | Real estate | 2023 |
| Urenluren AS | Arts & recreation | 2025 |
| USA Ford Parts AS | Wholesale & retail | 2017 |
| Utemiljøspesialistene AS | Administrative & support | 2022 |
| Utleiekompaniet AS | Administrative & support | 2009 |
| Utleiemegleren Østfold AS | Real estate | 2018 |
| UTS36 AS | | 2024 |
| Utsynet Holding AS | Real estate | 2021 |
| Unirei A/S | Real estate | 1941 |
| V-Team AS | Manufacturing | 2019 |
| Vanebo Eiendom AS | Real estate | 2025 |
| Vanir Esports & Entertainment AS | Arts & recreation | 2020 |
| Vansjø Boligbyggelag Eiendomsselskap AS | Real estate | 1979 |
| Vansjø Boligbyggelag Utbygging AS | Real estate | 2004 |
| Vansjøklinikken AS | Health & social care | 2015 |
| Vardens Invest AS | Financial services | 2005 |
| Varna Legesenter AS | Health & social care | 2024 |
| Varna Regnskapskontor SA | Professional & scientific | 1997 |
| Varnaveien 27 AS | Real estate | 2017 |
| Varnaveien 35 Eiendom AS | Real estate | 2014 |
| Varnaveien 39 AS | Real estate | 1993 |
| Varnaveien 39 Eiendom AS | Real estate | 2026 |
| Varnaveien 43 AS | Real estate | 2005 |
| Varnaveien 43D AS | Real estate | 2016 |
| Varnaveien 43E Kontor AS | Real estate | 2017 |
| Varnaveien Bilpleie & Service AS | Other services | 2017 |
| Varnaveien Cafe AS | Hospitality | 2005 |
| Varnaveien Holding AS | Other services | 2017 |
| Varnaveien Mineralvann AS | Wholesale & retail | 2002 |
| Varnaveien Tekstil AS | Wholesale & retail | 2007 |
| Varv Holding AS | | 2022 |
| Vasco Norway AS | Wholesale & retail | 2024 |
| Vaycays AS | Real estate | 2024 |
| Vector Takst Og Byggteknikk AS | Professional & scientific | 2010 |
| Vei & Tunnel AS | Construction | 2024 |
| Veker Invest AS | | 2005 |
| Ventilasjon & Klimateknikk AS | Construction | 2022 |
| Ventilasjonsgrossisten AS | Professional & scientific | 2009 |
| Ventilasjonspartner AS | Construction | 2021 |
| Verdifestivalen AS | Arts & recreation | 2020 |
| Verket Barnehage SA | Education | 1997 |
| Verket Fablab AS | Administrative & support | 2015 |
| Verket Medispa AS | Health & social care | 2019 |
| Verket Scener AS | Arts & recreation | 2016 |
| Vermund Larsen Norge AS | Wholesale & retail | 2013 |
| Vero Event AS | Other services | 2022 |
| Vertiv Norway AS | Professional & scientific | 2023 |
| Verto AS | | 2026 |
| Vertshuset Mossiana Ans | Hospitality | 1993 |
| Vestbrynet Invest AS | | 2023 |
| Vestby Spiseri AS | Hospitality | 2023 |
| Vestengveien 26 AS | Real estate | 2023 |
| Vestland Vegmerking AS | Construction | 2026 |
| Vestsidevegen 87 AS | Real estate | 2020 |
| Veverbakken 57 AS | Real estate | 2016 |
| Vi Piratas AS | Information & communication | 2010 |
| Via Optimum AS | Professional & scientific | 2021 |
| Via Oter AS | Wholesale & retail | 2024 |
| Vialto Partners Norway AS | Professional & scientific | 2023 |
| Viasea Shipping AS | Transport & logistics | 2001 |
| Vicky West Holding AS | Wholesale & retail | 2018 |
| Vicky West Rygge AS | Wholesale & retail | 2018 |
| Victoria Eiendomsutvikling AS | Real estate | 2012 |
| Videolabben AS | Manufacturing | 2018 |
| Vidsyn Legekontor AS | Health & social care | 2023 |
| Vidya Yoga AS | Education | 2015 |
| Viken 3-BYGG Holding AS | Construction | 2019 |
| Viken Assuranse AS | | 2018 |
| Viken Autoformidling AS | Wholesale & retail | 2021 |