| VPN Drift Invest AS | Construction | 2007 |
| VPN Holdco AS | Construction | 2019 |
| Vpy Invest AS | Wholesale & retail | 2023 |
| Vpy Utleie AS | Administrative & support | 2025 |
| VRK Invest AS | Wholesale & retail | 2016 |
| VS Investering AS | | 2021 |
| VS Regnskap AS | Professional & scientific | 1988 |
| Vy Strategy AS | Professional & scientific | 2020 |
| Våg Holding AS | Real estate | 2019 |
| Vårå Forretningsbygg AS | Real estate | 1986 |
| Walter Energi AS | Wholesale & retail | 2020 |
| Wangen Invest AS | | 2017 |
| Wangen Software Solutions AS | Information & communication | 2026 |
| Wanity Da | Professional & scientific | 2012 |
| Wannalin Thaimassasje AS | Other services | 2021 |
| Warden Invest AS | | 2020 |
| Water & Wine AS | Professional & scientific | 1998 |
| Wathne Eiendom AS | Real estate | 1996 |
| Wathne Last Og Buss AS | Wholesale & retail | 2008 |
| Wave Haugesund AS | Wholesale & retail | 2020 |
| Wegner Invest AS | Real estate | 2024 |
| Wegner Technology AS | Administrative & support | 2024 |
| Wei & Hong AS | Hospitality | 2002 |
| Weiss Management AS | Real estate | 2007 |
| Wen Events AS | Arts & recreation | 1993 |
| Wen Two AS | Arts & recreation | 2015 |
| Wenches Fotterapi AS | Health & social care | 2024 |
| West Supply II Operation AS | Transport & logistics | 2015 |
| West Supply III AS | Mining & quarrying | 2017 |
| West Supply Vii Drift AS | Mining & quarrying | 2013 |
| West Supply Vii Eier AS | Mining & quarrying | 2013 |
| West-Coast Scaffholding | Construction | 2011 |
| Westco H P Tønnessen & Co | | 1982 |
| Westcon Løfteteknikk AS | Professional & scientific | 1997 |
| Westek AS | Agriculture & fishing | 2023 |
| Westre Eiendomservice AS | Real estate | 2026 |
| White Mountain Productions AS | Information & communication | 2017 |
| White Productions AS | Arts & recreation | 2010 |
| Whitstar AS | | 2026 |
| Wildix Nuf | Information & communication | 2021 |
| Windcurrent AS | Professional & scientific | 2024 |
| Woco AS | Professional & scientific | 1986 |
| Wonderwall AS | Wholesale & retail | 2015 |
| Workflows AS | Information & communication | 2025 |
| Wrath Music Da | Arts & recreation | 2020 |
| Wrist Europe (Norway) AS | Wholesale & retail | 1976 |
| WS Holding AS | Administrative & support | 2017 |
| WS Sjøservice AS | Transport & logistics | 2021 |
| Wsas Nuf | Wholesale & retail | 2005 |
| Wulfing AS | Education | 2018 |
| Wyrd Holding AS | Real estate | 2013 |
| Xenithal AS | | 2021 |
| XL AS | Real estate | 1987 |
| Ych AS | Real estate | 2013 |
| Yes Treningssenter AS | Arts & recreation | 2000 |
| Yid Fysio AS | Health & social care | 2023 |
| Yid Holding AS | Health & social care | 2023 |
| Ymir Energy AS | Mining & quarrying | 2009 |
| Ymir Energy Holding AS | Mining & quarrying | 2014 |
| Ynwa Ventures AS | Professional & scientific | 2026 |
| Ysjebotn Holding AS | Financial services | 2013 |
| Ystadveien 1 Butikk AS | Real estate | 2021 |
| Ytterbø AS | Financial services | 2016 |
| Yummy Thai Food AS | Hospitality | 2019 |
| Yuun Brows&Lashes AS | Other services | 2025 |
| Z Hårdesign AS | Other services | 2013 |
| Zeus Mobility Nuf | Administrative & support | 2021 |
| Zirconia AS | Real estate | 1995 |
| Zivo AS | Wholesale & retail | 2026 |
| Zoi AS | Hospitality | 2001 |
| Zonastella AS | | 2021 |
| Zonestar Holding AS | Financial services | 2015 |
| Zoohandel Haugesund AS | Wholesale & retail | 1997 |
| Åkra Bil AS | Wholesale & retail | 1996 |
| Åkra Bilutleie AS | Administrative & support | 1998 |
| Åmodten Holding AS | Administrative & support | 2022 |
| Åmodten Invest AS | Real estate | 2022 |
| Årabrotsveien 19 D AS | Real estate | 2013 |
| Ølen Bilvask AS | Other services | 2024 |
| Ølen Invest AS | Real estate | 2007 |
| Ølen Sentrumsutvikling AS | Real estate | 2015 |
| Ølen Tomteselskap AS | Real estate | 2022 |
| Øritzland AS | Hospitality | 2020 |
| Øst Vinbar AS | Hospitality | 2025 |
| Østbø & Kaldheim Eiendomsmegling AS | Real estate | 2019 |
| Østbø Engineering AS | Professional & scientific | 2026 |
| Østensjø Drift AS | Transport & logistics | 2010 |
| Østensjø Eiendom AS | Real estate | 2014 |
| Østensjø Rederi AS | Transport & logistics | 1999 |
| Østensvik Invest AS | Real estate | 2005 |
| Østhusvegen 10 AS | Construction | 2019 |
| Øveraas AS | | 2025 |
| Øvregata 108 AS | Real estate | 2022 |
| Øvregaten 126 AS | Real estate | 2002 |
| Øvrelid Sysco Invest AS | Real estate | 2009 |
| Øyelegekontoret AS | Health & social care | 2020 |
| Øygarden Holding AS | Professional & scientific | 2020 |
| Øysbje Holding AS | | 2019 |