| Latvalan Sora Ky | Wholesale & retail | 1990 |
| Lausmäki Oy | Real estate | 2021 |
| Lehtinen LKV Oy | Real estate | 2026 |
| Leino-Asennus Oy | Manufacturing | 2018 |
| Leppäniemi Investment Management Oy | Financial services | 2018 |
| Levin Kätkäntähdet Kiinteistö Oy | Real estate | 2010 |
| Liedon Autohuolto Oy | Wholesale & retail | 1982 |
| Liedon Sora Oy | Mining & quarrying | 2014 |
| Loukimotors Oy | Wholesale & retail | 2024 |
| Lounais - Suomen polttoaine- ja kahvilapiste Oy | Wholesale & retail | 1992 |
| Lounaskahvila Lahtinen Ky | Hospitality | 1986 |
| Luja-Trans Oy | Transport & logistics | 1998 |
| Lunera Oy | Manufacturing | 2008 |
| M. Karvonen Oy | Transport & logistics | 2003 |
| MATI Holding Oy | Financial services | 2013 |
| MK-Teollisuusompelu Oy | Manufacturing | 2019 |
| MKWS Laskutus Oy | Administrative & support | 2019 |
| Multigroup OY | Other services | 2011 |
| Makinen Crew Oy | Administrative & support | 2021 |
| Makinen Group Oy | Real estate | 2004 |
| Makinen Marine Oy | Construction | 2024 |
| Marilux Oy | Construction | 2011 |
| Matti Riipinen Oy | Wholesale & retail | 1989 |
| Merikratos Oy | Health & social care | 2013 |
| Minna Marttila Oy | Administrative & support | 2012 |
| Moislahti Oy | Transport & logistics | 2013 |
| Moslei Holding Oy | Health & social care | 2010 |
| Movery Oy | Health & social care | 2022 |
| Musiikkikoulu Satomaa & Oksanen avoin yhtiö | Education | 2015 |
| Muuraus & Rakennus Korhonen Oy | Construction | 2017 |
| N-Huolinta Oy | Administrative & support | 2023 |
| Namires Oy | Professional & scientific | 1994 |
| Narvacountry Oy | Financial services | 2020 |
| Nemit Oy | Information & communication | 2012 |
| Nenis 75 Oy | Real estate | 2020 |
| Neverstop Oy | Administrative & support | 1989 |
| Niittyvaara Invest Oy | Professional & scientific | 1998 |
| Nonnii Design Oy | Wholesale & retail | 2023 |
| OC-Tuotanto Oy | Professional & scientific | 1993 |
| OK-Personal Oy | Administrative & support | 2011 |
| OL-Renters Oy | Administrative & support | 1989 |
| Optimik OY | Professional & scientific | 2008 |
| Oma Ihminen Oy | Wholesale & retail | 2026 |
| Oy Consta Ironman Group Ltd | Manufacturing | 2004 |
| Oy J & A Tamminen Ab | Real estate | 2017 |
| POJAL Oy | Health & social care | 2017 |
| PTL Eiline Oy | Manufacturing | 2025 |
| Pablissimo Oy | Health & social care | 2021 |
| Padel Lieto Oy | Arts & recreation | 2022 |
| Palmacap Oy | Real estate | 1998 |
| Pavetec Oy | Construction | 2007 |
| Pennyworth Oy | Professional & scientific | 2022 |
| Piikkiön Venevarustaja Oy | Other services | 1982 |
| Pintaurakointi Nikula Oy | Construction | 2014 |
| Pointum Oy | Financial services | 2002 |
| Potion 8 Oy | Information & communication | 2022 |
| ProAvisor Oy | Professional & scientific | 2014 |
| Projektipalvelu Opifex Oy | Arts & recreation | 2019 |
| Purchouse Oy | Other services | 2018 |
| Pusa Logistics Oy | Transport & logistics | 2010 |
| Puutarhaliike Helle Oy | Wholesale & retail | 1988 |
| Raikko Group Oy | Financial services | 2026 |
| Raision Tuotekatu 8A Oy | Real estate | 1985 |
| Rake Jake Oy | Construction | 2026 |
| Rakennuspalvelu Lausmäki Oy | Construction | 2019 |
| Rakennuspalvelu Mortek Oy | Construction | 2002 |
| Rakennuspalvelu Neho Oy | Construction | 2016 |
| Rakennustoimisto Albi Oy | Construction | 2008 |
| Rakennusurakointi Rasimus & Mäkelä Oy | Construction | 1984 |
| Rakime Service Oy | Construction | 2019 |
| Rauman Putkitekniikka Oy | Construction | 2011 |
| Relenova Oy | Hospitality | 1998 |
| Restapaja Oy | Manufacturing | 1994 |
| Revontuli Lieto Oy | Hospitality | 2025 |
| Revora IT Solutions Oy | Information & communication | 2025 |
| Rock-face Oy | Financial services | 2006 |
| Ronica Remontointi Oy | Construction | 2024 |
| SGA Consulting Oy Ab | Professional & scientific | 2023 |
| STS Consta Ironman Group SRL, Suomen Sivuliike | Manufacturing | 2017 |
| SW-Yhtymä Oy | Transport & logistics | 1994 |
| SWC Finland OY | Professional & scientific | 1991 |
| Saariston Konetyö Oy | Construction | 1994 |
| Savimix Oy | Manufacturing | 1995 |
| Service Wilkman Oy | Manufacturing | 2025 |
| Simanainen & Koski Oy | Wholesale & retail | 2025 |
| Simpermanni Oy | Financial services | 2022 |
| Sleepwalker Oy | Information & communication | 2000 |
| Snowilike Oy | Real estate | 2024 |
| Softpartners Oy | Information & communication | 2004 |
| Sport-Marketing Oy | Real estate | 1973 |
| Starend Oy | Manufacturing | 2010 |
| Streely Oy | Construction | 2016 |
| Studio Duemila avoin yhtiö | Professional & scientific | 1998 |
| Sukukirjaamo Oy | Other services | 2022 |
| Säästöpesu OY | Manufacturing | 2020 |
| Särvän Sijoitus Oy | Financial services | 1975 |
| TCB Infra Oy | Construction | 2012 |
| TEHO-TECH Oy | Construction | 2024 |
| TK Trans Oy | Transport & logistics | 2021 |
| Taksi 286 Turku Oy | Transport & logistics | 2008 |