| AST-Yhtiö Oy - AST-Company Ltd | Real estate | 1992 |
| Acateem Oy | Manufacturing | 1988 |
| Arlight A & R Vanhatalo | Manufacturing | 1984 |
| Askondi Oy | Manufacturing | 1981 |
| Biopir Oy | Energy | 2019 |
| Branday Oy | Professional & scientific | 2006 |
| By Laura Oy | Other services | 2024 |
| Cika Oy | Agriculture & fishing | 2019 |
| Deeptouch Oy | Other services | 2021 |
| Elantoni Oy | Professional & scientific | 1982 |
| Elvis Group Oy | Administrative & support | 2024 |
| FCR Solutions Oy | Hospitality | 2013 |
| Finish Liner OY | Administrative & support | 2013 |
| HEAL Kiinteistöt Oy | Real estate | 2026 |
| Hannu Heikelä Oy | Wholesale & retail | 2007 |
| Heikolan Rakennus Oy | Construction | 2021 |
| Hururock Oy | Wholesale & retail | 2016 |
| Innoframe Oy | Financial services | 2018 |
| J. E. Simola Ky | Transport & logistics | 1987 |
| J.A.N Express Ky | Transport & logistics | 2005 |
| J.A.N. Transport Consulting Oy | Professional & scientific | 2020 |
| J.Varjonen Oy | Administrative & support | 2019 |
| JMJ-Invest Oy | Hospitality | 1993 |
| Jolax Oy | Wholesale & retail | 1998 |
| Juhlatalo Vaanin Kartano Oy | Hospitality | 2018 |
| Kailan Tila Oy | Agriculture & fishing | 2018 |
| Kaskikiinteistö Oy | Real estate | 2012 |
| Kauppapuutarha Verso Oy | Agriculture & fishing | 2012 |
| Kida Trans Ky | Construction | 2016 |
| Kiinteistö Oy Ilmaristentie 2 | Real estate | 2007 |
| Kiinteistö Oy Naakas | Real estate | 2024 |
| Kiinteistö Oy Suomenkivi | Real estate | 1972 |
| Kiinteistö Oy Vehmaan Vuokratalot | Real estate | 1996 |
| Kiinteistö Vinkix Oy | Real estate | 2018 |
| Kiinteistönvälitys Kotoisa LKV Oy | Real estate | 2016 |
| Kiinteistöosakeyhtiö Lahtivuo | Real estate | 1981 |
| Kirnuvuori Oy | Manufacturing | 1983 |
| Koneurakointi Suomi Oy | Construction | 2025 |
| Kreulan Tila Oy | Agriculture & fishing | 2019 |
| Kuljetus K&U Laurila Oy | Transport & logistics | 1996 |
| Kuljetusliike J & J Oy | Transport & logistics | 1988 |
| Kuljetusliike Markku Salonen Oy | Transport & logistics | 1996 |
| Kuva-Tähti Oy | Information & communication | 1990 |
| Levikaira Holding Oy | Real estate | 2021 |
| Maa-Jussi Oy | Hospitality | 2018 |
| Metallityö M. Mäkelä Oy | Manufacturing | 2003 |
| Metsä-Moto Oy | Agriculture & fishing | 1993 |
| Metsäkuljetus Heino & Uusitalo Oy | Agriculture & fishing | 1981 |
| Mimosa Ryhmis Oy | Health & social care | 2022 |
| Muoti-Herrala Oy | Manufacturing | 1970 |
| Nicoptio Oy | Professional & scientific | 1993 |
| Osuuskunta SAMANTEKEVÄÄ | Arts & recreation | 2014 |
| Oy Forma Cont Ltd | Financial services | 1997 |
| Oy Tomava Ab | Wholesale & retail | 2006 |
| POP Motion Simulator Ky | Manufacturing | 2010 |
| Piglauri Oy | Agriculture & fishing | 2001 |
| Pirteä Porsas Oy | Agriculture & fishing | 1996 |
| Possupop Oy | Agriculture & fishing | 2005 |
| Puuman Group Oy | Real estate | 2021 |
| RK-Poraus Oy | Construction | 1992 |
| RM-Lahdenranta Oy | Transport & logistics | 1999 |
| Rakennus Hakanpää ja Tommila oy | Construction | 2024 |
| Rakennusliike Asko Vähämiko ky | Construction | 1989 |
| RaxSaa Oy | Construction | 2025 |
| Rehupalvelu Torikka & Isolauri Oy | Manufacturing | 1996 |
| Ropoman Oy | Transport & logistics | 1985 |
| SN.ookerix Oy | Administrative & support | 2021 |
| Saariston Leipä Oy | Manufacturing | 2021 |
| Sahavest Oy | Real estate | 2018 |
| Simipork Oy | Manufacturing | 2003 |
| TILMA MEDIAT Oy | Information & communication | 2001 |
| Taalopork Avoin Yhtiö | Hospitality | 2005 |
| Talopak Oy | Professional & scientific | 1989 |
| The Nainen Oy | Information & communication | 2020 |
| Tummamäen Pajaosuuskunta | Manufacturing | 2015 |
| Turunmaan ATK-Neuvonta Oy | Professional & scientific | 1988 |
| Urakointi Aaltonen Oy | Construction | 2018 |
| Uudenkaupungin Teräsrakenne Oy | Manufacturing | 2018 |
| Vakka-Suomen Siivous Ky | Administrative & support | 1994 |
| Vallan Maukas Oy | Manufacturing | 2015 |
| Varsinais-Suomen Kantojyrsintä avoin yhtiö | Agriculture & fishing | 2021 |
| Vehmaa Energia Oy | Energy | 2007 |
| Vehmaan Autowix Oy | Other services | 2024 |
| Vehmaan Fun House Food, avoin yhtiö | Hospitality | 2012 |
| Vehmaan Grilli Namnam Oy | Hospitality | 2025 |
| Vehmaan Kaivin ja Kuljetus Ky | Construction | 2014 |
| Vehmaan Monipalvelu Oy | Construction | 1997 |
| Vehmaan Mylly-Matti Oy | Manufacturing | 1999 |
| Vehmaan OK Rakennus Ky | Construction | 2010 |
| Vehmaan PK-Puu Oy | Manufacturing | 1995 |
| Vehmaan Putkiasennus Oy | Construction | 1987 |
| Vehmaan Rautarakenne Oy | Real estate | 1982 |
| Vehmaan Sähköpalvelu Rinne Oy | Construction | 1997 |
| Vehmaan Tilitiimi Oy | Professional & scientific | 2007 |
| Vehmaan Vesi Oy | Water & waste | 2016 |
| Vehmaan W Invest Oy | Financial services | 2023 |
| Vilhivuori Oy | Real estate | 1987 |
| Vinkkilän T-Keskus Oy | Wholesale & retail | 1992 |