| A-A Group Oy | Construction | 2025 |
| AH-Kiinteistöhuolto Oy | Construction | 2020 |
| ALAInvestment oy | Financial services | 2016 |
| Amotec Oy | Wholesale & retail | 2009 |
| Apassion Oy | Professional & scientific | 1986 |
| Asennus Hastell Avoin yhtiö | Construction | 2018 |
| Asianajotoimisto Timo Kallio Oy | Professional & scientific | 2014 |
| Bio Karjalohja Oy | Manufacturing | 2000 |
| Biograf Oy | Manufacturing | 2025 |
| Branderi Osk | Professional & scientific | 2019 |
| Broafix Oy | Other services | 2025 |
| Business Sales Academy Oy | Education | 2024 |
| Clever Choice Oy LKV | Real estate | 2017 |
| Code Reality Oy | Information & communication | 2018 |
| Compassion Oy | Professional & scientific | 2005 |
| Deadbug Oy | Real estate | 2017 |
| DestreX Oy | Information & communication | 2025 |
| DevNow Oy | Professional & scientific | 2023 |
| Dibuig Oy | Health & social care | 1990 |
| Enäjärven Saha Westerlund Ky | Wholesale & retail | 1981 |
| Eranto Oy | Transport & logistics | 2022 |
| Escape Hatch Oy | Professional & scientific | 2021 |
| Ferinfine Oy | Construction | 2012 |
| FysioCoach Oy | Health & social care | 1994 |
| Green Media Oy | Professional & scientific | 1993 |
| HW Rakentaja Oy | Construction | 2011 |
| HappyHill Residences Oy | Real estate | 2024 |
| Hastell Oy | Construction | 2022 |
| Hauskaviita Oy | Construction | 1996 |
| Heponiemi Kiinteistöt Oy | Hospitality | 2022 |
| Hortiherttua Oy | Agriculture & fishing | 1999 |
| Huoltopalvelu Jensen Oy | Other services | 2022 |
| Hyvinvointikeskus Lehto Oy | Real estate | 2025 |
| Hyvinvointipalveluyritys HYPPYRI Oy | Health & social care | 1994 |
| Hyvän Olon Keskus Elontuli Oy | Education | 2009 |
| Immolan Kartano Oy | Real estate | 2018 |
| Inframeister Oy | Construction | 2026 |
| Inner Strength Finland Oy | Administrative & support | 2007 |
| J & J Johansson Ky | Transport & logistics | 1989 |
| JTurva Oy | Administrative & support | 2024 |
| KKH-Consulting Oy | Administrative & support | 2018 |
| KLARK Oy | Professional & scientific | 2023 |
| Karjalohjan Autoasennus Oy | Other services | 2020 |
| Karjalohjan Huoltopiste Oy | Wholesale & retail | 1991 |
| Karjalohjan Teollisuuskiinteistö Oy | Real estate | 2016 |
| Karjalohjan putkiasennus Ky | Construction | 1990 |
| Kiinteistö Oy Särkiän Majakka | Real estate | 1984 |
| Kotivarmuus Oy | Real estate | 2025 |
| Kuljetus Hakulinen Ky | Transport & logistics | 1991 |
| Kuljetus Pirkko Ohvo Oy | Other services | 2005 |
| Kurmakka - Organic Food Ltd Oy | Professional & scientific | 1995 |
| Kurvi Software Oy | Information & communication | 2026 |
| Kyläosuuskunta Rukki | Wholesale & retail | 2019 |
| KÄÄPÄ BioTech Oy | Agriculture & fishing | 2018 |
| Liner kiinteistöt oy | Real estate | 2026 |
| Linja Design Oy | Professional & scientific | 1987 |
| Lohjan Helmihampaat Oy | Health & social care | 2020 |
| Lomarine Oy | Professional & scientific | 2026 |
| Lääkäripalvelu Erik Pesonen Oy | Health & social care | 2025 |
| ML-Kaivuu Oy | Construction | 2013 |
| MOF Oy | Wholesale & retail | 2020 |
| Mittauslinja Heikki Teppo Oy | Professional & scientific | 1985 |
| Motorengas Oy | Wholesale & retail | 1995 |
| Myötätuuli Consulting Oy | Information & communication | 2022 |
| NoPicnic Oy | Construction | 2023 |
| Nordix Horses Oy | Professional & scientific | 2022 |
| Ourearth Oy | Wholesale & retail | 2025 |
| Oy Fincep Ltd | Wholesale & retail | 1975 |
| Oy J & M Tech Ltd | Other services | 1996 |
| Oy Levihouse247 | Construction | 2020 |
| Oy P.G. Forsell Ab | Professional & scientific | 1987 |
| Parhiala Yhtiöt OY | Construction | 2017 |
| Parkinniemi - Sokajärvi vesihuolto-osuuskunta | Construction | 2006 |
| Peltisepänliike J. Koski Oy | Construction | 2020 |
| Piuha Works Oy | Information & communication | 2010 |
| PremLife Oy | Wholesale & retail | 2017 |
| Pure Raw Bites Oy | Wholesale & retail | 2025 |
| Rautiainen Racing Oy | Arts & recreation | 2020 |
| SLTC-Marketing Avoin yhtiö | Wholesale & retail | 2011 |
| Sakkola Bioproducts Oy | Manufacturing | 1990 |
| Sakkolan Maatalouspalvelut Oy | Agriculture & fishing | 1990 |
| Sario & Sario Consulting Oy | Professional & scientific | 2025 |
| Scius Oy | Professional & scientific | 2020 |
| Seges Oy | Agriculture & fishing | 2022 |
| Service Partner Oy | Hospitality | 1987 |
| Siusluoto Oy | Transport & logistics | 2008 |
| Sähkö-Kela Oy | Construction | 2013 |
| Särkiän Mylly oy | Hospitality | 2025 |
| TAKO Energia Oy | Professional & scientific | 2025 |
| The Aki OY | Hospitality | 2020 |
| TTM-Konepalvelut Oy | Construction | 2015 |
| Taitava tilitoimisto Oy | Professional & scientific | 2026 |
| Tarmo Timpuri Oy | Construction | 2013 |
| Tasopinnoite Lainio Oy | Manufacturing | 1976 |
| Tekhne Oy | Administrative & support | 2024 |
| TerraVolt Oy | Wholesale & retail | 2025 |
| Test-Tec Oy | Manufacturing | 2010 |
| Toivepiha Oy | Administrative & support | 2012 |
| Uskalla Innostua Oy | Education | 2021 |
| VN Sijoitus Oy | Real estate | 2026 |