| 1710 Sari Knihti Oy | Wholesale & retail | 2020 |
| AJP-Yhtymä Oy | Manufacturing | 2008 |
| ATJ Palvelu KY | Administrative & support | 2012 |
| AaltoCon Oy | Administrative & support | 1994 |
| ActiveK9 Nordic Oy | Wholesale & retail | 2025 |
| Ahjoco Oy | Manufacturing | 1987 |
| Ahokannas Oy | Wholesale & retail | 1988 |
| Alegron Oy | Wholesale & retail | 2023 |
| Anuari Oy | Administrative & support | 2006 |
| Armika Oy | Wholesale & retail | 2023 |
| Asacahar Oy | Construction | 2024 |
| Asunnot Julkunen Oy | Real estate | 2024 |
| Athlead Oy | Education | 2017 |
| Autohaku Oy | Transport & logistics | 2005 |
| Autohaku Uusi-Kerttula avoin yhtiö | Transport & logistics | 2012 |
| Avatermos Oy | Wholesale & retail | 1963 |
| Avoin yhtiö Nakkilan Postikortti | Transport & logistics | 1986 |
| Bar Hunt Oy | Hospitality | 2020 |
| Best Runners Oy | Information & communication | 2007 |
| Big Bear Production Ky | Information & communication | 2006 |
| Britan kotipalvelu Ky | Health & social care | 2006 |
| Covire Oy | Wholesale & retail | 1981 |
| CrTe-Invest Oy | Real estate | 2016 |
| E-J Mustajärvi Oy | Wholesale & retail | 1991 |
| ENE, Ympäristöinsinöörit Oy | Energy | 2014 |
| EP Power Grit Oy Ab | Mining & quarrying | 2022 |
| Edirat Ky | Construction | 2018 |
| Ekotaika puhtauspalvelut Oy | Administrative & support | 2020 |
| Emsami Oy Pori | Transport & logistics | 2014 |
| Esacom Oy | Professional & scientific | 2018 |
| Essant Oy | Information & communication | 1986 |
| Evanne Ky | Hospitality | 2007 |
| Ferlox Oy | Manufacturing | 2006 |
| Final Ode Productions Oy | Arts & recreation | 2026 |
| Finknits Oy | Administrative & support | 2019 |
| Fysio SimMar Oy | Health & social care | 2011 |
| Fysiotalli Oy | Health & social care | 2021 |
| Gasthaus Tyrni Oy | Hospitality | 2022 |
| HTQ Management Oy | Professional & scientific | 2013 |
| Haarakas oy | Administrative & support | 1987 |
| Hansasole Oy | Real estate | 2006 |
| Harmetal Oy | Manufacturing | 2018 |
| Haul Yeah! Oy | Information & communication | 2025 |
| Hein Service Oy | Other services | 2021 |
| Helmeä Oy | Arts & recreation | 2022 |
| Hippeläisen PihaKonePalvelu Ky | Construction | 2017 |
| Honkaniemi Invest Oy | Real estate | 2021 |
| Hunt Group Co Oy | Financial services | 2025 |
| Huoltotiimi Pihkoluoma Oy | Administrative & support | 2021 |
| Husky Holiday Travels Oy | Arts & recreation | 2017 |
| IM Fellows Oy | Information & communication | 2013 |
| J.K. Santala Oy | Transport & logistics | 2020 |
| J.Tenhonen Oy | Manufacturing | 2024 |
| JMR-Metalli Ky | Manufacturing | 2012 |
| JP ilma-tekniikka Ky | Construction | 2011 |
| JV-Talotekniikka Oy | Construction | 2020 |
| JaKaTeam Oy | Administrative & support | 2023 |
| Jakokuljetus Rieppola Oy | Transport & logistics | 2000 |
| Jokilaakson Terveyskeskuskiinteistöt Oy | Real estate | 2008 |
| K-PA Kiinteistöpalvelut Oy | Administrative & support | 1995 |
| KaksPisteNolla Oy | Education | 2026 |
| Kallio-luomufarmi Oy | Agriculture & fishing | 2022 |
| Kantolan Teollisuuskiinteistöt Oy | Professional & scientific | 1997 |
| Kari-Pekan Puu Oy | Wholesale & retail | 2012 |
| Kiinteistö Oy Alinenmaa | Real estate | 1989 |
| Kiinteistö Oy Mäntytie 60 | Real estate | 2022 |
| Kiinteistö Oy Nakkilan Korpiranta | Real estate | 1991 |
| Kiinteistö Oy Nakkilan Kotiteollisuuskoulu | Real estate | 1986 |
| Kiinteistö Oy Nakkilan Radanvarsi | Real estate | 1997 |
| Kiinteistö Oy Nakkilan Villilän Kartano | Real estate | 2002 |
| Kiinteistö Oy Parasmaa | Real estate | 1984 |
| Kiinteistö SeppoIlmari Oy | Real estate | 2012 |
| Kiinteistö-Kankeri Oy | Real estate | 1989 |
| Kiinteistöinvestointi La-Vi Oy | Real estate | 1989 |
| Korpicountry Oy | Real estate | 2014 |
| Kratsu Oy | Education | 2024 |
| Kuippanan elämyspalvelut Oy | Administrative & support | 2018 |
| Kukonharjanmäki Oy | Professional & scientific | 2000 |
| Kuljetus Leistilä Oy | Transport & logistics | 1999 |
| Kulmala-Tuote Oy | Manufacturing | 1972 |
| Kustannusosakeyhtiö Sanomapaja | Information & communication | 2009 |
| Liikeliiteri OY | Real estate | 2014 |
| LVI-Konsultointi Kari Sillanpää Oy | Professional & scientific | 1990 |
| Larex Kiinteistöt Oy | Real estate | 2010 |
| Lasmer Oy | Wholesale & retail | 1997 |
| Leistilä Tyres Oy | Other services | 2023 |
| Leistilä Way Oy | Professional & scientific | 2017 |
| Leistilä Works Oy | Professional & scientific | 2007 |
| Leppis Oy | Manufacturing | 1994 |
| Lohijoki Oy | Administrative & support | 2015 |
| Lohisto Ky | Construction | 2015 |
| Lounas-Kahvila Pöllitupa Oy | Hospitality | 2023 |
| LumoClean Oy | Administrative & support | 2024 |
| Lämpö ja Vesi Kankeri Oy | Construction | 1993 |
| M-P Kalustovuokraus Oy | Construction | 2022 |
| MJ Metsä- ja Monipalvelu Ky | Agriculture & fishing | 2009 |
| MT Männistö Oy | Construction | 2015 |
| Maa- ja energiaurakointi Järventausta Oy | Construction | 2021 |
| Maalaus KateJK Oy | Construction | 2025 |
| Maatalous Eskolin Oy | Agriculture & fishing | 2002 |