| AB Edjo OY | Manufacturing | 2016 |
| Ab Holms Oy | Wholesale & retail | 1954 |
| Ab Inredningstjänst Lillrank Oy | Wholesale & retail | 1999 |
| Ab Stormossen Oy | Water & waste | 1985 |
| Ab Tonedealer Oy | Wholesale & retail | 2011 |
| Ab Wasa Jet Oy | Wholesale & retail | 2008 |
| Active Rakennus - Bygg Oy Ab | Construction | 2010 |
| Amanda Hjorth oy ab | Other services | 2022 |
| Ar-Ka Service Oy | Professional & scientific | 2017 |
| Aura Trading Ab | Construction | 2007 |
| BrannCars Ab Oy | Administrative & support | 2019 |
| Cargolix Ab | Information & communication | 2019 |
| Carpelan Cosmetics Finland CCF Oy | Other services | 2024 |
| Chips Metals Ab Oy | Manufacturing | 2025 |
| Christian Häggblom Ab Oy | Agriculture & fishing | 2008 |
| Content & Connections Ab | Professional & scientific | 2023 |
| Dentawa Ab | Health & social care | 2025 |
| Ed-Welding OY | Manufacturing | 2022 |
| Easy Shipping Oy Ab | Transport & logistics | 2006 |
| Eccu Oy | Manufacturing | 2024 |
| Ein Fastighet Ab Oy | Real estate | 2026 |
| EkoRedo Bokföring Ab Oy | Professional & scientific | 2023 |
| Fastighets Ab Kvevlax Centrum | Real estate | 2007 |
| Fastighets Ab Skoltået-Kiinteistö Oy | Real estate | 2002 |
| Fjärdsvägen 26C Ab | Other services | 2020 |
| Forest Fix Ab | Agriculture & fishing | 2019 |
| HEJMan Oy Ab | Real estate | 2023 |
| Hagberg Entreprenad Ab Oy | Agriculture & fishing | 2024 |
| Haglunds Mekaniska Ab | Manufacturing | 2025 |
| Hillteam Oy | Professional & scientific | 2014 |
| Hällskär Ab | Real estate | 2013 |
| InWesterlund Oy Ab | Professional & scientific | 2021 |
| Ivana Salo Oy Ab | Arts & recreation | 2024 |
| JM Enterprises Oy | Professional & scientific | 2026 |
| JND Norrtec Oy | Manufacturing | 2025 |
| Jeppes Fisk Ab | Wholesale & retail | 2020 |
| K. Koivula Oy | Transport & logistics | 2022 |
| KPS solutions Oy | Wholesale & retail | 2020 |
| Kb Ingenjörsbyrå Backman Ky | Professional & scientific | 1990 |
| Kb Mika Trans Ky | Transport & logistics | 1964 |
| Kiinteistö Oy Oravaisten Teollisuustie 12 A | Real estate | 2018 |
| Koivulahti Invest Oy | Real estate | 2025 |
| KveMax Ab | Construction | 2019 |
| Kvevlax Invest Ab | Real estate | 2012 |
| Kvevlax Juristbyrå Ab | Professional & scientific | 2022 |
| Kvevlax Service Ab | Wholesale & retail | 2010 |
| Kvevlax Sparbank Ab | Financial services | 2023 |
| Kvevlax Värmeservice Ab | Energy | 2005 |
| Ky Byggsmart Kb | Construction | 2020 |
| L-Meck Ab | Professional & scientific | 2025 |
| Laser Care Vasa öppet bolag | Other services | 2013 |
| Legio Ab | Construction | 2026 |
| Logset Oy | Manufacturing | 2005 |
| MA Bisnes Oy | Administrative & support | 2020 |
| MK Elinstallationer AB | Construction | 2014 |
| MP Trading Oy | Financial services | 2002 |
| Majorna Invest Ab | Financial services | 1998 |
| ND Advisory Group Ab Ltd | Energy | 2022 |
| Nic Tec Oy Ab | Manufacturing | 2015 |
| Nordic Melodies Ab | Arts & recreation | 2022 |
| Oy DuoCapital Ab | Real estate | 1993 |
| Oy PlanMe Ab | Transport & logistics | 2013 |
| Oy VestHelp Ab | Professional & scientific | 2025 |
| P & G Nyholm | Transport & logistics | 1996 |
| PSR Palvelu Oy | Construction | 2017 |
| Palosaaren Metalli Oy | Manufacturing | 1975 |
| Peak Rent Oy Ab | Real estate | 2007 |
| Peter Kastus Ab | Agriculture & fishing | 1996 |
| Peter Knuts Invest Ab Oy | Financial services | 2006 |
| R&J Service | Administrative & support | |
| RM Motorservice Ab | Other services | 2022 |
| Revisol Vaasa Oy | Water & waste | 2019 |
| SW-Company öppet bolag | Arts & recreation | 2014 |
| Simons Company AB | Real estate | 2017 |
| T. Pada Ab Oy | Other services | 2020 |
| The DynoLab Ab | Other services | 2020 |
| Tradexi Oy | Wholesale & retail | 2025 |
| Trehus Ab Oy | Real estate | 2025 |
| UH-Koneistus Oy | Manufacturing | 1996 |
| Vallbacken Ab | Agriculture & fishing | 2023 |
| Vikingklipp Ab Oy | Real estate | 1990 |
| Wasa Drycker-Waasa Juomat Ab Oy | Wholesale & retail | 2013 |
| Wasahem Ab Oy | Real estate | 2022 |
| Westenergy Oy | Water & waste | 2008 |