| Unique Fotball Academy AS | Oslo | 2024 |
| Unique Mind Esp AS | Nøtterøy | 2005 |
| Unirand AS | Oslo | 2002 |
| Unity Nuf | Hamar | 2021 |
| Unity Pole & Aerial AS | Tønsberg | 2021 |
| Unity Sport & Event AS | Kvalavåg | 2026 |
| Unity.Dog AS | Sande I Vestfold | 2021 |
| Universal Balance AS | Oslo | 2005 |
| Universal Events AS | Hundvåg | 2025 |
| Universal Flow AS | Drøbak | 2025 |
| Universal Players Global Norge AS | Bekkestua | 2020 |
| Universet Studentbarnehage AS | Tromsø | 2022 |
| Universiteit Antwerpen | Be-2000 Antwerpen | 2023 |
| Universitetssenteret På Svalbard AS | Longyearbyen | 2002 |
| University of Applied Sciences Utrecht (Stichting Hogeschool Utrecht) | 3584Ch Utrecht | 2020 |
| University of Durham | Durham Dh1 3Le | 2021 |
| University of Eastern Finland | Fi-70211 Kuopio | 2017 |
| University of Lapland | Fi-96300 Rovaniemi | 2018 |
| University of Oxford | Oslo | 2021 |
| University of Surrey Nuf | Guildford Gu2 7Xh | 2025 |
| Unnis Dansestudio U & I Ans | Rasta | 2003 |
| Uno Trafikkskole AS | Hundvåg | 2024 |
| Unzip Da | Oslo | 2019 |
| Upwind Snowkiting School AS | Geilo | 2024 |
| Urban Fitness AS | Kristiansand S | 2020 |
| Urban Group AS | Oslo | 2012 |
| Urban Studios AS | Kongsvinger | 2025 |
| Urban Substans AS | Oslo | 2022 |
| Urdarbrønnen SA | Porsgrunn | 2000 |
| Urde AS | Gran | 2021 |
| Urena AS | Hamnvik | 2023 |
| Urokråke AS | Bergen | 2014 |
| Uroskolen AS | Oslo | 2021 |
| Uroskolen Sør Norge AS | Kragerø | 2020 |
| Urra Holding AS | Oslo | 2002 |
| Urtehagen Barnehager AS | Oslo | 2004 |
| Ut & Tren AS | Oslo | 2016 |
| Ut I Det Fri AS | Kråkerøy | 2021 |
| Ut Trafikkskole AS | Narvik | 2026 |
| Utdannet.No AS | Oslo | 2019 |
| Utdanning Nordkalotten Norge | Se-957 31 Övertorneå | 2013 |
| Utdanningskonsulentene AS | Bergen | 2025 |
| Utdanningssenteret På Geilo AS | Geilo | 2022 |
| Utemedisin Holding AS | Narvik | 2013 |
| Utemedisin Kurs AS | Narvik | 2019 |
| Utepedagogen AS | Glåmos | 2021 |
| Utetrening Lyngdal Da | Lyngdal | 2025 |
| Utigarden Barnehage AS | Vatne | 2004 |
| Utpust AS | Oslo | 2014 |
| Utrecht University | 3584 Cs Utrecht | 2023 |
| Utsikten Barnehage Ottestad SA | Ottestad | 1989 |
| Utsikten Barnehage SA | Reistad | 2005 |
| Utsikten Vest Fus Barnehage AS | Sandnes | 2018 |
| Utvikling Og Kompetanse AS | Sørreisa | 2019 |
| Utvikling Og Lederskap AS | Ottestad | 2023 |
| Utvikling.Org Kompetanse AS | Stavanger | 2012 |
| Utviklingsforum AS | Oslo | 2008 |
| Utviklingstrappa AS | Nittedal | 2022 |
| Uw Tech AS | Frei | 2022 |
| V Master AS | Eidsvåg I Åsane | 2019 |
| V Trafikkskole AS | Haugesund | 2022 |
| V&V Yoga AS | Horten | 2024 |
| Vaajma AS | Oslo | 2020 |
| Vaaler Trening & Livsstil AS | Kløfta | 2025 |
| Vaidas Visjon AS | Kodal | 2021 |
| Vakaheim AS | Røyse | 2025 |
| Vakre Andungen AS | Oslo | 2023 |
| Val Skoler AS | Kolvereid | 2005 |
| Valdersnes Brannvernkompetanse AS | Frekhaug | 2022 |
| Valdres Folkehøgskule AS | Leira I Valdres | 2004 |
| Valdres Montessoriskule SA | Ulnes | 2009 |
| Valdres Opplæringskontor SA | Fagernes | 2007 |
| Valdres Trafikkskole AS | Fagernes | 1999 |
| Valid Terapi Da | Furnes | 2026 |
| Valle Gård Barnehage AS | Mandal | 2016 |
| Valle Hovin Idrettsbarnehage AS | Oslo | 2022 |
| Valstad Gård Aktiv AS | Sylling | 1997 |
| Valsø Trafikkskole AS | Lonevåg | 2018 |
| Valued AS | Oslo | 2023 |
| Valued Holdco AS | Oslo | 2024 |
| Valvatna Fus Barnehage AS | Stord | 2018 |
| Vammen Barnehage AS | Sande I Vestfold | 2016 |
| Vana Yoga AS | Tromsdalen | 2026 |
| Vancowill Industrial Solutions AS | Stokke | 2014 |
| Vanessas Ballettstudio AS | Grimstad | 2012 |
| Vangen Barnehage SA | Fjellhamar | 1990 |
| Vangen Skistue AS | Siggerud | 2006 |
| Vangli Barnehage SA | Ridabu | 1988 |
| Vannsprut AS | Sandnes | 2022 |
| Vannvettene AS | Kongsvinger | 2023 |
| Vantix Performance AS | Tønsberg | 2025 |
| Varaholla 365 AS | Tørberget | 2021 |
| Varanger Trafikkskole AS | Vadsø | 2018 |
| Varden Barnehage SA | Egersund | 1989 |
| Varden Ung AS | Skien | 2025 |
| Vardevaker AS | Vannareid | 2025 |
| Vardåsen Barnehage SA | Asker | 1996 |
| Varhaug Barnehage SA | Os | 1989 |
| Varia AS | Høvik | 2007 |
| Varingskollen Barnehage SA | Hakadal | 2001 |