| T.A Kapital AS | | 2026 |
| T.A Service AS | Administrative & support | 2026 |
| Takknemlig Helsekost AS | Wholesale & retail | 2020 |
| Tellefsen Group AS | | 2026 |
| Tenvik Næringspark AS | Real estate | 2007 |
| Teqva Haugaland AS | Professional & scientific | 2025 |
| Teqva Rør Haugesund AS | Construction | 1989 |
| Thermal Power Solution AS | Professional & scientific | 2013 |
| Thorstensen AS | Wholesale & retail | 2015 |
| Thorstensen Trading AS | Wholesale & retail | 2016 |
| Tirtuv Holding AS | Financial services | 2015 |
| Tiv Holding AS | Information & communication | 2016 |
| TM Kids Holding AS | Wholesale & retail | 2022 |
| TNB Oasen Karmøy AS | Wholesale & retail | 2022 |
| Tommy's Catering AS | Hospitality | 2021 |
| Tonheim Invest AS | | 2024 |
| Toppen Hårstudio AS | Other services | 2016 |
| Torvgaten 1 AS | Real estate | 2019 |
| Torvgården Tønsberg AS | Real estate | 2005 |
| Touring Invest AS | Financial services | 2005 |
| Triton-X AS | Professional & scientific | 2025 |
| TST Holding AS | Financial services | 2008 |
| Tvedt Nuf | Wholesale & retail | 2005 |
| Ulf & Alf Agenturer Da | Wholesale & retail | 2003 |
| Urangsæter Holding AS | | 2026 |
| V.E.Pak Holding AS | Hospitality | 2021 |
| Vahaugvegen 18 AS | Real estate | 2013 |
| Vahaugvegen 18 Tomt 12 AS | Real estate | 2024 |
| Vahaugvegen 18 Tomt 7 AS | Real estate | 2024 |
| Vahaugvegen 18 Tomt 9 AS | Real estate | 2024 |
| Validé Haugesundregionen AS | Professional & scientific | 2010 |
| Valnoro AS | Professional & scientific | 2025 |
| Varde Software AS | Information & communication | 2026 |
| Varden Bil AS | Wholesale & retail | 2002 |
| Vatland Es AS | Real estate | 2018 |
| Vatland Transport AS | Transport & logistics | 2018 |
| Vayn AS | Wholesale & retail | 2018 |
| Verkstedgrossisten Haugesund AS | Wholesale & retail | 2024 |
| Vest Betong & Sageservice AS | Construction | 2021 |
| Vestvik Bygg AS | Construction | 2021 |
| VHG Innredninger AS | Construction | 2002 |
| Vican Gruppen AS | Real estate | 2001 |
| Vigilo AS | Information & communication | 2010 |
| Viltslakteri AS | Hospitality | 2020 |
| Vinkel Kodeverksted AS | Information & communication | 2020 |
| Vormedalsvegen Eiendom AS | Real estate | 2017 |
| Våga Holding AS | | 2025 |
| Yttersøveien 3 AS | Real estate | 1988 |
| Ølberg Kiting AS | Manufacturing | 2026 |
| Østrem Multifiks AS | Construction | 2021 |