| 10 Star Taxi Oy | Transport & logistics | 2023 |
| A & T Honkola Oy | Wholesale & retail | 2017 |
| A. Piipponen Oy | Wholesale & retail | 1978 |
| AJ Leivo Oy | Transport & logistics | 2021 |
| Aaro Laasala Oy | Wholesale & retail | 1994 |
| Ahti Huvila Oy | Wholesale & retail | 1950 |
| Aircraft Service Finland Oy | Manufacturing | 2022 |
| Ajankulu Ky Pasi Ahopelto | Manufacturing | 1988 |
| Alla Puun Oy | Manufacturing | 2011 |
| Alphen Oy | Wholesale & retail | 1993 |
| Apilasaho Oy | Other services | 1999 |
| Arvo Saarenpää Oy | Wholesale & retail | 1982 |
| Auto Jy-Ti Ky | Wholesale & retail | 1989 |
| Bergskäret Invest Oy | Real estate | 2026 |
| Coaching by Cheyenne Oy | Education | 2022 |
| E&S. Honkola Oy | Agriculture & fishing | 2014 |
| EJ-Lämpö Oy | Energy | 1999 |
| EJ-Tarhat Oy | Agriculture & fishing | 2012 |
| Elämyskeskus Vuorenmaa Oy | Hospitality | 2008 |
| Energia Pojat Oy | Agriculture & fishing | 2006 |
| Erkki Heikinmäen Sähkö Kommandiittiyhtiö | Construction | 1988 |
| Ermec Ky | Manufacturing | 2012 |
| FK-Kiinteistöt Oy | Real estate | 2020 |
| FK-Kuljetus Oy | Transport & logistics | 2016 |
| HaVuRa Oy | Construction | 2005 |
| Hankaranta Mökit avoin yhtiö | Hospitality | 2013 |
| Huolto Mäki Oy | Manufacturing | 1990 |
| J.K. Pinta Oy | Construction | 2023 |
| JA-HE Ky | Construction | 2000 |
| JS Pinta Oy | Professional & scientific | 1996 |
| Jani Kari Ky | Manufacturing | 2005 |
| Jousmäki Oy | Transport & logistics | 2012 |
| Juha Saarimaa Oy | Construction | 2019 |
| Juviter Oy | Information & communication | 2025 |
| KJ-Kalax Oy | Agriculture & fishing | 1997 |
| KM Rahti Oy | Other services | 2000 |
| Kaivu & Kuljetus R. Peura Oy | Construction | 2002 |
| Karatili Oy | Professional & scientific | 2000 |
| Karin Kotijuustola Oy | Manufacturing | 1993 |
| Kauko Laukkonen Ky | Transport & logistics | 1989 |
| Kiinteistö Oy Soinin Kesäranta | Real estate | 1991 |
| Kiinteistöpalvelu Mäki Ky | Real estate | 2013 |
| King River Oy | Professional & scientific | 2023 |
| Kohi-Group Oy | Manufacturing | 2008 |
| Koiviston Kukka ja Hautaus Oy | Other services | 2018 |
| Kolunkylän Vesiosuuskunta | Water & waste | 1963 |
| Kommandiittiyhtiö Oiva Takala | Wholesale & retail | 1979 |
| Koneurakointi Kotanen Oy | Construction | 1995 |
| Koneurakointi Velj. Nurminiemi Ay | Mining & quarrying | 2007 |
| Kreve Oy | Construction | 2023 |
| Kuljetusliike Osala Oy | Transport & logistics | 2005 |
| Lauttotennis Oy | Arts & recreation | 1991 |
| Lehis Oy | Construction | 2021 |
| Lepete avoin yhtiö | Wholesale & retail | 2004 |
| Leppäsen Sementtivalimo Oy | Manufacturing | 1996 |
| Logbear Oy | Manufacturing | 1995 |
| M. Anttila Production Oy | Information & communication | 1995 |
| MM-Works Oy | Manufacturing | 1986 |
| MOS-Kiito Oy | Transport & logistics | 1998 |
| Mamika Oy | Hospitality | 2017 |
| Matec-Trailer Oy | Manufacturing | 2021 |
| Mauri Koskinen Oy | Transport & logistics | 1997 |
| Metsätyö Esko Laitila Oy | Construction | 2000 |
| Niemenaho Service Oy | Manufacturing | 2026 |
| OMR Music Oy | Arts & recreation | 2014 |
| OivaKate Oy | Construction | 2018 |
| Oivarauta Oy | Wholesale & retail | 2015 |
| Oivatili Oy | Professional & scientific | 1989 |
| Oy International Engine-Trade KRA Ab | Wholesale & retail | 1989 |
| Oy Kohiwood Ltd | Manufacturing | 2008 |
| PEMI Forest Oy | Agriculture & fishing | 2005 |
| Peat Trac Oy | Mining & quarrying | 2011 |
| Pentti Saarimaa Oy | Construction | 2014 |
| Peuran Liikenne Ky | Transport & logistics | 1987 |
| Plasor Oy | Construction | 2012 |
| Pälviharjun Sora Arvo Kankaanpää kommandiittiyhtiö | Mining & quarrying | 1982 |
| R&V Siivouspalvelut Ay avoin yhtiö | Administrative & support | 2024 |
| RT Myllymäki Oy | Transport & logistics | 2000 |
| Radio-Tv Huvila Ky | Wholesale & retail | 2005 |
| Raigo Oy | Wholesale & retail | 2021 |
| Rakennustyöt J & N Vähäsoini Oy | Construction | 2022 |
| Rascore Oy | Construction | 2023 |
| Riuttolehto Oy | Professional & scientific | 1991 |
| SCO-Invest Oy | Financial services | 1986 |
| SH-Solutions Oy | Transport & logistics | 2023 |
| Sairaankuljetus T & K Åkerman Oy | Health & social care | 2009 |
| Saukrast Oy | Manufacturing | 1992 |
| Seinäjoen Tilausajo Oy | Transport & logistics | 1988 |
| Skitec Oy | Other services | 2021 |
| SoHeKo Oy | Construction | 2014 |
| Soinin Auto Oy | Wholesale & retail | 1985 |
| Soinin Eristys & Rakennus Oy | Construction | 2019 |
| Soinin Huolto Oy | Financial services | 2022 |
| Soinin Kuljetus & Kone Oy | Transport & logistics | 1994 |
| Soinin Muotivaate-Kulma avoin yhtiö | Wholesale & retail | 1984 |
| Soinin Murskaus ja Maansiirto Oy | Construction | 1982 |
| Soinin Puhtaanapito Oy | Water & waste | 1997 |
| Soinin Tapahtumat Osuuskunta | Education | 2002 |
| Soinin Turvetyö Avoin Yhtiö | Mining & quarrying | 1988 |
| Soinin Vuokratalot Oy | Real estate | 1973 |