| Tanngarden Os AS | Health & social care | 1988 |
| Tannlege Benedikte S.Øvredal AS | Health & social care | 2012 |
| Tannlege Therese Lund AS | Health & social care | 2012 |
| TDH Invest AS | | 2016 |
| TH Sprengningsservice AS | Construction | 2014 |
| The Elton Show AS | Arts & recreation | 2018 |
| The Mobergs AS | Real estate | 2020 |
| The Ship Investor AS | | 2023 |
| Think Hair Wear Os AS | Other services | 2004 |
| Thjertnes Invest AS | | 2024 |
| Thomas Dalen Cinematographer | Information & communication | 2013 |
| Thuen & Matre AS | Other services | 2002 |
| Thuen & Matre Eiendom AS | Real estate | 1993 |
| THV Invest AS | Real estate | 2005 |
| Ti På Taket AS | Real estate | 2019 |
| Tico Trading Da | Wholesale & retail | 1992 |
| Tiljo AS | Wholesale & retail | 2025 |
| Timbur AS | Real estate | 2017 |
| Tind Økonomi AS | Professional & scientific | 2008 |
| Tiro Holding AS | | 2009 |
| Tisan Holding AS | Financial services | 2013 |
| Tivolitomten AS | Real estate | 2002 |
| TJ Forvaltning AS | Professional & scientific | 2008 |
| Tka Education AS | Education | 2021 |
| Tkbi Holding AS | Education | 2021 |
| Tone's Helse & Velvære AS | Other services | 2016 |
| Toppen Frisør Os AS | Other services | 2017 |
| Toppvarden AS | | 2026 |
| Tore Lekven Holding AS | Administrative & support | 2022 |
| Transport Og Gulvstøp AS | Construction | 2001 |
| Traumebevisst Omsorg AS | Health & social care | 2018 |
| Tro Kapital AS | | 2021 |
| Trollhaug Invest AS | Real estate | 2005 |
| Trond Hope AS | Real estate | 1994 |
| Trothom AS | Real estate | 2006 |
| Trygg Bilhandel AS | Wholesale & retail | 2024 |
| Trykkammer Teknikk AS | Professional & scientific | 2012 |
| Turnkey Assets AS | Professional & scientific | 2023 |
| Tveit Eiendom AS | Real estate | 1998 |
| Tveit Maskinservice AS | Construction | 2022 |
| Tveit Og Askvik Bygg AS | Construction | 2015 |
| Typhoon Invest AS | Real estate | 2014 |
| Tys AS | Professional & scientific | 2016 |
| Tømrerfirma Preben Lyssand AS | Construction | 2016 |
| Tøsdal Invest AS | Construction | 2005 |
| Tøsdal Maskinstasjon AS | Construction | 2005 |
| Ullkleder Invest AS | | 2022 |
| Ulven Produkter AS | Wholesale & retail | 2023 |
| Ulven Skog Og Hage AS | Construction | 2024 |
| Ulvenparken AS | Real estate | 2006 |
| Underholdnings Gruppen AS | Professional & scientific | 2012 |
| Unik Filtersystem AS | Manufacturing | 1987 |
| Unnvest AS | | 2005 |
| Utegartneren AS | Professional & scientific | 2018 |
| Uteservice AS | Administrative & support | 2018 |
| V.Vevatne Fotklinikk AS | Health & social care | 2026 |
| Vaagens Holding AS | | 2025 |
| Vafo AS | | 2026 |
| Vamos Invest AS | | 2005 |
| Varde Film AS | Information & communication | 2012 |
| Varhaug Barnehage SA | Education | 1989 |
| Vatne Holding AS | Financial services | 2015 |
| Vectura Frigo Logistics AS | Transport & logistics | 2024 |
| Vegabra AS | Real estate | 2005 |
| Vegvis AS | Administrative & support | 2008 |
| Veim Media AS | Professional & scientific | 2020 |
| Verkantum AS | Information & communication | 2025 |
| Verksted Holding AS | Manufacturing | 2018 |
| Vernøy Båt & Fritid AS | Wholesale & retail | 2011 |
| Vest Murerservice AS | Construction | 2022 |
| Vest-Bygg & Renovering AS | Construction | 2020 |
| Vestenfjeldske Forsikringsrådgivning AS | Financial services | 2005 |
| Vestmekaniske AS | Manufacturing | 2015 |
| VGD AS | Administrative & support | 2018 |
| Viking Shores AS | Manufacturing | 2017 |
| Villanger Value AS | | 2026 |
| Villmann Holding AS | | 2026 |
| Vindu Mot Os AS | Real estate | 2008 |
| Vines Vassverk SA | Water & waste | 1967 |
| Viridia Nordic AS | Wholesale & retail | 2026 |
| Vistasol Holding AS | | 2024 |
| Vitaltour AS | Administrative & support | 2002 |
| VL Profilering Og Detaljhandel AS | Professional & scientific | 2022 |
| VLL Maritime AS | | 2021 |
| Volio AS | Professional & scientific | 2024 |
| Wala Eiendom AS | Real estate | 2007 |
| Wala Gruppen AS | Hospitality | 2010 |
| Waldeland Fysikalsk AS | Health & social care | 2025 |
| Waterwagon Songs AS | Information & communication | 2019 |
| Wen & Zhang AS | Hospitality | 2016 |
| Wergeland Kapital AS | | 2019 |
| Weve Holding AS | | 2022 |
| White Buffalo AS | | 2026 |
| WM Consult AS | Arts & recreation | 2024 |
| Wonderland Invest AS | Professional & scientific | 2014 |
| Worksfix AS | Administrative & support | 2021 |
| Yoga Hiit AS | Arts & recreation | 2025 |
| Ytredal AS | | 2023 |
| Zagros Barber AS | Other services | 2021 |
| Zeller Invest AS | Real estate | 2005 |