| A-Vaan Oy | Arts & recreation | 2018 |
| AHN Consulting Oy | Professional & scientific | 2011 |
| AJV-Sähkö Oy | Construction | 2018 |
| ASEP Oy | Construction | 2007 |
| Aarni Rehab Oy | Health & social care | 2020 |
| Aarni Rehab Päihdekuntoutus Oy | Health & social care | 2020 |
| Active Expo Oy | Administrative & support | 2015 |
| Aplit Oy | Construction | 2004 |
| Betop Oy | Manufacturing | 2008 |
| Care4living Oy | Professional & scientific | 2014 |
| Dofor Oy | Arts & recreation | 2024 |
| Fysioterapia Helahoito Oy | Health & social care | 2019 |
| Hugo Hokkanen Oy | Administrative & support | 2025 |
| Ilmalämmöx Oy | Construction | 2023 |
| JEE Works Oy | Other services | 2020 |
| JST huolto- ja kunnostustyöt Oy | Construction | 1996 |
| Jojoan Oy | Wholesale & retail | 1998 |
| Jouko-Matti Nummelin Oy | Construction | 1998 |
| Kasvukonsultit Oy | Professional & scientific | 2019 |
| Kiinteistöosuuskunta Poikon Impivaara | Real estate | 1990 |
| Kirveskuutio Oy | Construction | 1990 |
| Kolkka Invest Oy | Financial services | 2017 |
| Konkke Oy | Professional & scientific | 2013 |
| Kurjenrauma Ky | Transport & logistics | 1990 |
| LVI-Kanervo Oy | Construction | 2020 |
| Maanrakennusliike TM-Kaivuu Oy | Construction | 2001 |
| NF Services Oy | Transport & logistics | 2022 |
| Naantalin Aurinkolämpö Oy | Construction | 2011 |
| Neurotutka Oy | Health & social care | 1989 |
| Osuuskunta Rymättylän Varhane | Wholesale & retail | 1995 |
| Otavan Tähdet Oy | Professional & scientific | 2023 |
| Oy Jaanto Ab | Professional & scientific | 1994 |
| Oy Nintec Ab | Professional & scientific | 1990 |
| Oy Suomen Metallointi Ab | Manufacturing | 1986 |
| PL-Interior Oy | Wholesale & retail | 2022 |
| Proautomaatio OY Bau | Manufacturing | 2017 |
| Perhekoti Linnunlaulu Oy | Health & social care | 2005 |
| Pito-Jussi Oy | Hospitality | 2023 |
| Poicco Oy | Professional & scientific | 2023 |
| Rakennus Hellman Oy | Construction | 2015 |
| Ruokorauman Vesiosuuskunta | Water & waste | 2011 |
| Rymättylän Rakennus ja Saneeraus Oy | Construction | 1998 |
| SK Enex Oy | Construction | 2008 |
| Saariston Kiinteistöhuolto Oy | Administrative & support | 2001 |
| Sopu Yhtiöt Oy | Real estate | 1992 |
| Suomen Turvakoulutus Oy | Education | 2026 |
| Sähköpalvelu EL-MERI Oy | Construction | 2007 |
| T. Lankinen Oy | Construction | 2012 |
| TAB Holdings Oy | Financial services | 2016 |
| Tanilan Saaristomökit Oy | Real estate | 1989 |
| Tirhanperä Oy | Transport & logistics | 2022 |
| Turun Kourupalvelu Ky | Construction | 2004 |
| Urakointi Lajata Oy | Construction | 2025 |
| VFE Garage Oy | Wholesale & retail | 2023 |
| Viherrakennus Uotila Oy | Administrative & support | 2021 |
| i-identity Oy | Information & communication | 2006 |