| 1235 Johanna Kivimäki Oy | Wholesale & retail | 2014 |
| A-P Trading Oy | Transport & logistics | 2020 |
| AJ Ahocon Oy | Water & waste | 2021 |
| AL Infra Oy | Construction | 2015 |
| Aarina Oy | Professional & scientific | 2022 |
| Aikapuu Oy | Wholesale & retail | 2019 |
| Aina tiellä Oy | Transport & logistics | 2020 |
| Anninkulma Oy | Professional & scientific | 2017 |
| Annmar Invest Oy | Financial services | 2020 |
| Arctic Mango Agency Oy | Administrative & support | 2026 |
| Asiacon Oy | Professional & scientific | 2013 |
| Aslemetals Oy | Manufacturing | 1963 |
| Astomaa Oy | Professional & scientific | 1991 |
| Astotek Oy | Wholesale & retail | 1991 |
| Autoholistit Oy | Wholesale & retail | 2013 |
| Autohuolto K. Lehtomäki Ky | Wholesale & retail | 1978 |
| Automaatio-Anssi Oy | Professional & scientific | 2009 |
| Autoyhtymä Saarivuori Ky | Transport & logistics | 2002 |
| Avoin yhtiö Lasse ja Kirsi Uusen | Wholesale & retail | 2001 |
| B-Folk Lääkäripalvelut Oy | Health & social care | 2025 |
| BC Bertenex Oy | Other services | 2022 |
| Berries and Matcha Oy | Wholesale & retail | 2024 |
| Capri Coffee avoin yhtiö | Manufacturing | 2019 |
| Carboat oy | Other services | 2025 |
| Cigarspirit Oy | Other services | 2009 |
| Coastrip Oy | Professional & scientific | 2023 |
| Crystal Marine Ky | Manufacturing | 1994 |
| Dandy and Fine avoin yhtiö | Professional & scientific | 2016 |
| Dataline Group Oy | Professional & scientific | 2010 |
| Delta Vee Ky | Information & communication | 2008 |
| EJB yhtiö Oy | Construction | 1997 |
| ELEKTROBUDOWA SPOLKA AKCYJNA Sivuliike Suomessa | Construction | 2008 |
| EcoPorts Finland Oy | Transport & logistics | 1994 |
| EkoVirta Oy | Construction | 2021 |
| Ekovex Ympäristöpalvelut Oy | Administrative & support | 2019 |
| Ellac Oy | Construction | 2025 |
| Elon Kalankasvattamo, Erkki & Teuvo Elo | Agriculture & fishing | 1986 |
| Equus Online Oy | Information & communication | 2016 |
| Eristysliike P. Mälkiä Ky | Construction | 1984 |
| Ermail Group Oy | Financial services | 2020 |
| Ermail International Oy | Construction | 2023 |
| Eurajoen Huoltamo-Kahvila Oy | Hospitality | 1999 |
| Eurajoen Jäähalli Oy | Real estate | 2000 |
| Eurajoen Kiinteistö- ja Tilipalvelu Oy | Real estate | 2005 |
| Eurajoen Kiinteistöpalvelu Oy | Administrative & support | 2006 |
| Eurajoen Kuntakiinteistöt Oy | Real estate | 2025 |
| Eurajoen Maa-aines Oy | Construction | 1992 |
| Eurajoen Paloteam Oy | Public administration | 1991 |
| Eurajoen Puutarha Ky | Wholesale & retail | 2019 |
| Eurajoen Romu Invest Oy | Financial services | 1999 |
| Eurajoen Romu Oy | Water & waste | 2011 |
| Eurajoen Siivouspalvelu Oy | Administrative & support | 2021 |
| Eurajoen Väri ja Rauta Kommandiittiyhtiö | Wholesale & retail | 1983 |
| Eurajoen kyläbaari Oy | Hospitality | 2024 |
| Europasi Oy | Wholesale & retail | 1987 |
| Excore Oy | Professional & scientific | 2021 |
| Falttu Palvelut Oy | Administrative & support | 2017 |
| Fibrecon Oy | Manufacturing | 2020 |
| Flamingo AllBody Wellness Center Oy | Arts & recreation | 2010 |
| Four Hydroseeding Finland Oy | Administrative & support | 2026 |
| Furnish Product Ky | Manufacturing | 2011 |
| Gate of Hope Maritime Oy | Professional & scientific | 2026 |
| GriinMakers Oy | Construction | 1994 |
| HV&KV Housing Oy | Real estate | 2025 |
| Hakala Design Oy | Arts & recreation | 2023 |
| Hallavesi Oy | Construction | 2021 |
| Hannan Gluteenittomat Herkut Oy | Manufacturing | 2021 |
| Heating Oy Y-Kuljetus | Transport & logistics | 1979 |
| Heinonen Holding Oy | Financial services | 2022 |
| Holami Oy | Wholesale & retail | 2010 |
| Huppunen Ky | Transport & logistics | 1984 |
| Ilmoituslehti Eurajoki Oy | Information & communication | 2020 |
| Interrock Oy | Mining & quarrying | 1993 |
| J. Saarinen Oy | Other services | 2020 |
| JAR Trading Oy | Administrative & support | 2024 |
| JEL-tuotanto Oy | Professional & scientific | 2024 |
| JJ-Urakointi Oy | Water & waste | 2018 |
| JMP Works Oy | Construction | 2021 |
| JR-Kiito Oy | Transport & logistics | 1984 |
| JS Medical Service Oy | Financial services | 2007 |
| Jarmarin Ky | Wholesale & retail | 1991 |
| Jasun Auto, Avoin yhtiö | Other services | 1974 |
| Juvico Oy | Real estate | 2018 |
| KAMETAL Oy | Manufacturing | 2025 |
| KOY Eurajoen Mäntykangas | Real estate | 2020 |
| Kaivuu & Kuljetus Riikilä Oy | Construction | 2000 |
| Kaivuu- ja konetyö Heikkilä Oy | Construction | 2017 |
| Kanuunakustannus Oy | Information & communication | 2011 |
| Kaunismäki Oy | Arts & recreation | 2008 |
| Kausen Puu Ky | Wholesale & retail | 1991 |
| Kiinteistö Eklund Oy | Real estate | 2017 |
| Kiinteistö Oy Eurajoen Kauppakeskus | Real estate | 1993 |
| Kiinteistö Oy Eurajoen Vilmar | Real estate | 2020 |
| Kiinteistö Oy Kruunupyyn Leppäranta | Real estate | 1990 |
| Kiinteistö Oy M&S | Real estate | 2017 |
| Kiinteistö Oy Olkirivi | Real estate | 1973 |
| Kiinteistö Oy Perenhovi | Real estate | 1974 |
| Kiinteistö Oy Pinnoite | Real estate | 2026 |
| Kiinteistö Oy Riikonkuja | Real estate | 1973 |
| Kiinteistöosakeyhtiö Rauman Vähäkinnontie 2 | Real estate | 2002 |