| 1534 Sari Kaasalainen Oy | Health & social care | 2016 |
| 1680 Timo Tsurkka Oy | Wholesale & retail | 2019 |
| 2Agree Studios Oy | Information & communication | 2026 |
| A&H Leppälä Oy | Construction | 2020 |
| A. Ahlström Asunnot Oy | Administrative & support | 2020 |
| A. Ahlström Kiinteistöt Oy | Administrative & support | 2013 |
| AA Talot Oy | Construction | 2024 |
| ANVASA Oy | Professional & scientific | 2026 |
| APPA Investments Oy | Financial services | 2026 |
| Aalto Hoivapalvelut Rauma Oy | Transport & logistics | 2014 |
| Ahlström Konsernipalvelut Oy | Professional & scientific | 2013 |
| Anniina Vihermaa Ky | Transport & logistics | 2019 |
| Au Sukitus Pro Oy | Construction | 2025 |
| Aupron Oy | Construction | 2014 |
| Aurinkokulma Oy | Health & social care | 2005 |
| Auroran Juhlat Oy | Hospitality | 2016 |
| Blomqvist Holdings Oy | Real estate | 2023 |
| Borg Housing Oy | Real estate | 2023 |
| Bro-team Oy | Health & social care | 2008 |
| Caito Oy | Professional & scientific | 2022 |
| Deal-it Oy | Administrative & support | 2020 |
| Desenhor Oy | Professional & scientific | 2016 |
| Dumond Group Oy | Real estate | 2025 |
| E-Products OY | Wholesale & retail | 2010 |
| Eura Solar Oy | Energy | 2023 |
| Euro Tukatti Oy | Wholesale & retail | 2003 |
| Evasep Oy | Professional & scientific | 2021 |
| Ewercon Oy | Construction | 1995 |
| Fand Oy | Agriculture & fishing | 2025 |
| Fruitberry Oy | Other services | 1994 |
| FysioJyrki Ky | Health & social care | 2020 |
| Geolämpö Oy | Professional & scientific | 2008 |
| HIIH Holding Oy | Financial services | 2024 |
| Hansalinea Oy | Construction | 2009 |
| Harjavallan Autokuljetus Ky | Transport & logistics | 2010 |
| Heikki Laiho Oy | Manufacturing | 1967 |
| Henry Juhola Oy | Transport & logistics | 2002 |
| Hexea Holdings Oy | Professional & scientific | 2025 |
| Hexea Oy | Manufacturing | 2025 |
| Hilpertti Ky | Construction | 2000 |
| Hoivapalvelu Helmi & Heikki Oy | Health & social care | 2020 |
| Hold More Oy | Financial services | 2019 |
| Hopeaharjun Palvelukoti Oy | Health & social care | 2007 |
| Hopeakoto Oy | Health & social care | 2013 |
| Hums Oy | Administrative & support | 2022 |
| Infraliner Oy | Construction | 2013 |
| Insinööritoimisto J. Aavanen Oy | Professional & scientific | 2022 |
| Insinööritoimisto Thermofox Ky | Professional & scientific | 2005 |
| Intelligence Factory Oy | Professional & scientific | 2007 |
| J & K Hämäläinen Oy | Hospitality | 1997 |
| JAA&A Oy | Financial services | 2024 |
| JAP Yhtiöt Oy | Arts & recreation | 2018 |
| JJM-Invest Oy | Real estate | 2016 |
| JKV-Auto Oy | Other services | 2024 |
| JP Asiantuntijapalvelut Oy | Professional & scientific | 2023 |
| Jalo Games Oy | Information & communication | 2024 |
| Jazzo International Trade Syndicate Oy | Professional & scientific | 1994 |
| Jecon Trading Kommandiittiyhtiö | Wholesale & retail | 1994 |
| Jouko Arola Ky | Agriculture & fishing | 2015 |
| Juha Mäensivu Ky | Real estate | 1971 |
| Juhola Group Oy | Professional & scientific | 2022 |
| Juhola Innovations Oy | Administrative & support | 2021 |
| KMD-Kiinteistöt Oy | Real estate | 2021 |
| Kaapolan Rakennuspalvelu Oy | Construction | 2019 |
| Kaivuri-Kimmo Oy | Construction | 2019 |
| Kallio & Co. | Manufacturing | 2009 |
| Kamar Yhtiöt Oy | Administrative & support | 2026 |
| Kart Racing Division Oy | Arts & recreation | 2022 |
| Kekrak Oy | Construction | 2012 |
| Kiertomuovi Oy | Manufacturing | 2025 |
| Kiinteistö Osakeyhtiö Mäkipuistontie 15 | Real estate | 2014 |
| Kiinteistö Oy Korpiasunto | Real estate | 1993 |
| Kiinteistö Oy Noormarkun Nahkatalo | Real estate | 1971 |
| Kiinteistö Oy Noormarkun Sähkömäki | Real estate | 1995 |
| Kiinteistö Oy Porin Kurrenkulma | Real estate | 2018 |
| Kiinteistöosakeyhtiö Porin Karjarannantie 26 | Real estate | 2018 |
| Kiinteistösijoitus Aalto Oy | Real estate | 2017 |
| Kiinteistöyhtiö Metsäkoto Oy | Real estate | 2008 |
| Kipinätuote Ky | Manufacturing | 2017 |
| Kivimäki Capital Oy | Real estate | 2015 |
| Koivukujan Taimi ja Kukka Ky | Agriculture & fishing | 1983 |
| Kolido Oy | Administrative & support | 2023 |
| Konetalo Koje Oy | Wholesale & retail | 2025 |
| Konetekniikka Salli avoin yhtiö | Professional & scientific | 2014 |
| Konetyö Vallila Oy | Real estate | 1999 |
| Konsultointi Peltomaa Oy | Construction | 2011 |
| Korjaamo Pohjankivi Oy | Other services | 1999 |
| Kuljetusliike H. Salminen Oy | Transport & logistics | 1997 |
| Kuljetusliike Kaarniaho Ky | Transport & logistics | 2010 |
| Kumikorjaamo Hannu Takala Oy | Other services | 1992 |
| Kyl On Oy | Construction | 2026 |
| Kymppi Asennus Oy | Construction | 2022 |
| LAM-Lava Oy | Manufacturing | 2006 |
| LRA-Yhtiöt Oy | Construction | 2022 |
| LT-Sähkö Oy | Construction | 2009 |
| LVI-Asennus Toro Oy | Construction | 2025 |
| LVJL Capital Oy | Real estate | 2024 |
| Laiho Holding Oy | Manufacturing | 2026 |
| Laiho Industries Oy | Manufacturing | 2016 |
| Laineen Rakennushanke Oy | Construction | 2012 |