| ValuCast Oy | Manufacturing | 2010 |
| Valuc Oy | Information & communication | 2017 |
| Vanhakartanon viemäriosuuskunta | Water & waste | 2012 |
| Vapis Oy | Health & social care | 2022 |
| Varsinais-suomen autotalo oy | Other services | 2025 |
| Vaspuuki Oy | Hospitality | 2008 |
| Velho Arts Oy | Professional & scientific | 1996 |
| Veltrauma oy | Construction | 2024 |
| Venetelakka Salmeri Oy | Manufacturing | 2003 |
| Vertek Oy | Construction | 1996 |
| Vesi ja Lämpö P Vahtera Oy | Construction | 1981 |
| Vesill Oy | Real estate | 1995 |
| Vihreä Lammas Ky | Manufacturing | 2011 |
| VikPek Oy | Arts & recreation | 2026 |
| Vilissalon ja Nuhjan jätevesiosuuskunta | Water & waste | 2017 |
| Viral Media Oy | Professional & scientific | 2021 |
| Vohdensaaren Kesävesiosuuskunta | Water & waste | 2023 |
| Vohdensaaren viemäriosuuskunta | Water & waste | 2006 |
| Vuorikadun Kiinteistöhuolto Ky | Administrative & support | 1991 |
| Väriuki Oy | Wholesale & retail | 2007 |
| West Coast Hook OY | Administrative & support | 2009 |
| WakkaWorks Oy | Other services | 2023 |
| Wallila Oy | Real estate | 1928 |
| Wanhat Pojat Oy | Professional & scientific | 1994 |
| Warma-Uunit Oy | Construction | 2007 |
| Wasaborgin talli Oy | Education | 2017 |
| Welva Oy | Professional & scientific | 2020 |
| Work & Health Studio Oy | Health & social care | 2023 |
| Workshop Team Oy | Other services | 2014 |
| Yrityspalvelut Kairakari ja Särkelä Oy | Professional & scientific | 1991 |
| Yu Liang Oy | Hospitality | 2011 |
| Zaku Mar OY | Real estate | 2007 |
| Zeta Media Group Oy | Professional & scientific | 2021 |
| auto ja lätty oy | Other services | 2022 |
| h&r Mäkinen Oy | Other services | 2017 |
| the Closet. clothing boutique Ky | Wholesale & retail | 2015 |
| Äkäskeron Vesihuolto Oy | Construction | 1994 |
| Ångbåtsaktiebolaget Åland | Transport & logistics | 1897 |