| 1165 Anne Sippola-Punkari Oy | Wholesale & retail | 2014 |
| AcryliCon Länsi-Suomi Oy | Real estate | 1988 |
| Agro-Konsultointi Ky, Timo Ikola | Agriculture & fishing | 2000 |
| Ala-Perttilän tila Oy | Agriculture & fishing | 2025 |
| Amplisonic Oy | Wholesale & retail | 2008 |
| Arktika Solutions Oy | Professional & scientific | 2008 |
| Aulis Nuuja Oy | Wholesale & retail | 1987 |
| Auto- ja konekorjaamo Velj. Lehtonen Ay | Other services | 2001 |
| Automyynti Veljekset Rintamäki Oy | Wholesale & retail | 1997 |
| Autovarustelu Ala-Lahti Oy | Other services | 2008 |
| Bittiparrat Oy | Information & communication | 2017 |
| BoWellness Oy | Education | 2022 |
| Boss Boys Oy | Wholesale & retail | 2002 |
| Botniark Architects Ky | Professional & scientific | 1970 |
| CAT KARHU Ky | Administrative & support | 2016 |
| Caravan Rent Espoo Oy | Construction | 2011 |
| Dialogis Oy | Professional & scientific | 2017 |
| Dogomo Oy | Information & communication | 2017 |
| EE-PEE Lvi-asennus Oy | Construction | 2013 |
| EM-Rakennustyö Ky | Construction | 1991 |
| Ellipsi Oy | Health & social care | 2019 |
| Erlos Oy | Wholesale & retail | 1992 |
| Esa Killinen Ky | Construction | 2013 |
| Esa Tiilikka Oy | Construction | 2007 |
| Etelä-Pohjanmaan Rakennuskonsultointi Oy | Real estate | 2022 |
| Euroimpex Oy | Wholesale & retail | 2005 |
| Finbalt Invest Oy | Wholesale & retail | 2019 |
| Fysikaalinen Hoitola Johanna Ulvinen Kommandiittiyhtiö | Health & social care | 1985 |
| Fysiokipinä Ky | Health & social care | 1998 |
| HB Invest Oy | Wholesale & retail | 1993 |
| Haava Raivaus Oy | Agriculture & fishing | 2014 |
| Harrastepaja Oy | Wholesale & retail | 2021 |
| Hautakiven kaiverrus ja entisöinti Natri Oy | Other services | 2020 |
| Hyppösen Tila Oy | Agriculture & fishing | 2026 |
| IRP Raivaus Oy | Agriculture & fishing | 2006 |
| Insinööritoimisto Kri Oy | Professional & scientific | 1989 |
| Isokyrön Talotehdas Oy | Construction | 2016 |
| Isonkyrön Asuntovuokraus Oy | Real estate | 1990 |
| Isonkyrön Autopaja Oy | Other services | 2023 |
| Isonkyrön Fysikaalinen hoitolaitos, avoin yhtiö | Health & social care | 1983 |
| Isonkyrön Kehitys Oy | Professional & scientific | 2022 |
| Isonkyrön Lvis Oy | Construction | 1995 |
| Isonkyrön Rekkaliikenne Oy | Transport & logistics | 2000 |
| Isonkyrön mestarit Oy | Hospitality | 2015 |
| J-T Stone Oy | Transport & logistics | 1979 |
| JAT-Service Oy | Manufacturing | 2019 |
| JSV Care & Consulting Ab | Health & social care | 2020 |
| JV Nortech Metal Oy | Manufacturing | 1996 |
| Juhani Saukko Ky | Transport & logistics | 1992 |
| KE Construction Oy | Construction | 2013 |
| KLIFIS Pohjanmaa Oy | Health & social care | 2016 |
| Kalkitus Kujala Oy | Transport & logistics | 2012 |
| Kebab Company Isokyrö Oy | Hospitality | 2024 |
| Kiinteistö Oy Asumiskoti | Real estate | 2008 |
| Kiinteistö Oy Center Isokyrö | Real estate | 2019 |
| Kiinteistö Oy Kotola | Real estate | 2012 |
| Kiinteistö Oy Kyröönkoski | Real estate | 2014 |
| Kiinteistö Oy Tuomisenranta | Real estate | 2010 |
| Kiinteistö Oy Tuuralansaari | Real estate | 1994 |
| Kiinteistöosakeyhtiö Midhill | Real estate | 2020 |
| Knaapi Oy | Agriculture & fishing | 2020 |
| Kone Keltto Oy | Wholesale & retail | 1983 |
| Koneurakointi Jaurila Oy | Construction | 2014 |
| Korvolan Tila Oy | Agriculture & fishing | 2019 |
| Kosmos Group Oy | Health & social care | 2020 |
| Kristallikuvio Oy | Manufacturing | 2007 |
| Kujala Yhtiöt Oy | Financial services | 2024 |
| Kujala-Piste Oy | Other services | 2013 |
| Kuljetusliike Jorma Havina Oy | Transport & logistics | 2005 |
| Kuljetusliike Markko Oy | Transport & logistics | 1991 |
| Kyrö Keittiöt Oy | Manufacturing | 2019 |
| Kyrö Living Oy | Manufacturing | 2018 |
| Kyrö Rent Oy | Real estate | 2018 |
| Kyrönmaan Hautauspalvelut Oy | Other services | 2019 |
| Kyrönmaan Konehuolto Oy | Other services | 2019 |
| Kyrönmaan Maatalousmuseo Osuuskunta | Agriculture & fishing | 2006 |
| Kyrönmaan Tilitoimisto Oy | Professional & scientific | 2023 |
| Kyrönmaan lääkäripalvelu Oy | Health & social care | 2013 |
| Kyröpork Oy | Agriculture & fishing | 2022 |
| Kyrötek Oy | Construction | 2022 |
| Kyröön Kievari Oy | Hospitality | 2014 |
| Kyröön Kirjurit Oy | Professional & scientific | 2002 |
| LKN Coaching Oy | Education | 1997 |
| LS Sähkötekniikka Oy | Construction | 2015 |
| Lae Car Design Oy | Wholesale & retail | 2019 |
| Lae-Invest Oy | Wholesale & retail | 1994 |
| Laihian Energiaosuuskunta | Agriculture & fishing | 2004 |
| Lakeuden Neon Oy | Manufacturing | 2004 |
| Lakeuden ProRakennus Oy | Construction | 2025 |
| Larva-Kiinteistöt Oy | Real estate | 2003 |
| Laserweld Ky | Manufacturing | 1995 |
| Linja-autoliikenne Lehtonen Oy | Transport & logistics | 2012 |
| Lystiä Lakeurella avoin yhtiö | Arts & recreation | 2012 |
| M&P Palomäki Ky | Wholesale & retail | 1997 |
| MP Prima Oy | Administrative & support | 1997 |
| MT Group Oy | Real estate | 2021 |
| MTP Mämmi Oy | Construction | 2020 |
| Maatila Paloranta Oy | Agriculture & fishing | 2022 |
| Mantere Siivouspalvelu Oy | Administrative & support | 1990 |
| Mediaway Oy | Professional & scientific | 1993 |