| Finkarhu Oy | Arts & recreation | 2021 |
| Funeco Oy | Construction | 2009 |
| Futuri filmi Ky | Information & communication | 1992 |
| Hahtolan Liha Oy | Manufacturing | 2009 |
| Hannan hammashoitola Ky | Health & social care | 2012 |
| Heikki Riihimäki Oy | Transport & logistics | 1990 |
| Jakeluyhtiö OJ Riihimäki Oy | Transport & logistics | 1996 |
| Johan-Puu Oy | Wholesale & retail | 1995 |
| Juha Riihimäki Oy | Transport & logistics | 2008 |
| Kaivinkoneurakointi ja Maansiirto Maunuksela Oy | Construction | 1991 |
| Kalliojärven Camping-Alue Oy | Hospitality | 1995 |
| Kalliojärven Lukkuhaka Oy | Hospitality | 2010 |
| Kalliojärven Majat Oy | Hospitality | 2002 |
| Kiikan Tilapakkaamo Oy | Wholesale & retail | 1995 |
| Kiinteistö Valta Tilat Oy | Real estate | 2021 |
| Kuivuri Oy Erkkilä | Administrative & support | 1990 |
| Kuljetus Kukila Oy | Transport & logistics | 2018 |
| Kultin Maatila Oy | Agriculture & fishing | 2026 |
| Kupen Auto Oy | Wholesale & retail | 1979 |
| Kupen Kiinteistöt OY | Real estate | 1991 |
| Kyrö Clean Oy | Other services | 2017 |
| Kyrön Energiapuukatkonta Oy | Agriculture & fishing | 2005 |
| Kyrönmaan Maansiirtourakointi Maunuksela Ky | Construction | 1981 |
| Kyrönmaan Mylly avoin yhtiö | Wholesale & retail | 1980 |
| Lakeuden veljekset Oy | Hospitality | 2021 |
| Maito Karhu Oy | Agriculture & fishing | 2026 |
| Maunuksela Rock Oy | Construction | 2022 |
| Muwex Oy | Information & communication | 2018 |
| Olli Riihimäki Oy | Transport & logistics | 1983 |
| Orismalan Maansiirto ja Kaivuu Oy | Construction | 2001 |
| Palomaa Online Store Oy | Wholesale & retail | 2023 |
| Rakennus ja Konepalvelu Samu Oy | Construction | 2022 |
| Remontti & Rakennus Tauriainen Oy | Construction | 2021 |
| Riihimäki & Laitinen Oy | Transport & logistics | 2000 |
| Riihimäki & Luoma Oy | Transport & logistics | 1998 |
| Ruutikrut Oy | Education | 2025 |
| TT-Fertek ky | Manufacturing | 1973 |
| Tervajoen Autokeskus Kupe Oy | Real estate | 2002 |
| Toiselle Oy | Professional & scientific | 2025 |
| Viltton Oy | Wholesale & retail | 2021 |