| AH Ravintolat Oy | Hospitality | 2008 |
| AS-Import Oy | Transport & logistics | 2023 |
| ATT-Forest Oy | Agriculture & fishing | 2002 |
| Ahtiaisen Lomamökit, avoin yhtiö | Hospitality | 2009 |
| Aikasa Oy | Manufacturing | 1994 |
| Airaksinen Design Oy | Professional & scientific | 2025 |
| Anoll Oy | Wholesale & retail | 2021 |
| ArkiAvuksi Oy | Administrative & support | 2026 |
| Asennus Marjamäki Oy | Other services | 2025 |
| Asennus Probert Oy | Construction | 2023 |
| Asennus Suikkanen Oy | Construction | 2018 |
| Aurinkosaari Oy | Hospitality | 1974 |
| AutoBuumi Oy | Wholesale & retail | 2006 |
| Avamor Oy | Hospitality | 2014 |
| Avoin yhtiö MB-Kuntoklubi | Arts & recreation | 1999 |
| Baykus Oy | Hospitality | 2026 |
| Birch Ridge Oy | Information & communication | 2014 |
| Bistro Havu Oy | Hospitality | 2026 |
| Bonisse Oy | Agriculture & fishing | 1992 |
| Carhaus Oy | Professional & scientific | 2008 |
| Caxon Oy | Wholesale & retail | 1993 |
| Chrysatos Oy | Financial services | 2023 |
| Cluetail Oy | Information & communication | 2002 |
| Cone Analytics Oy | Information & communication | 2025 |
| D.E.W Ponczek Oy | Construction | 2022 |
| Darkin Oy | Administrative & support | 2022 |
| Dream Lake Oy | Administrative & support | 2007 |
| EHF concept Oy | Wholesale & retail | 2015 |
| ES Energiapuupalvelu Oy | Agriculture & fishing | 2025 |
| Edustusliike Ari Kostet Ky | Wholesale & retail | 1987 |
| Ekopuutuote Oy | Manufacturing | 2021 |
| Eliitti-Putki Oy | Construction | 2021 |
| Energiasetti Oy | Construction | 2023 |
| Eränkävijän Riistaliha Oy | Agriculture & fishing | 2021 |
| Etelä-Savon Mökkihuolto Ky | Construction | 2001 |
| Eurokaivuu & kuljetus Oy | Construction | 1994 |
| Exel Composites Oyj | Manufacturing | 1996 |
| Exel Composites Store Oy | Manufacturing | 1990 |
| FM Ciftci Oy | Hospitality | 2012 |
| Farkova Oy | Wholesale & retail | 1996 |
| Forcedes Oy | Other services | 2016 |
| Forest Vihavainen Oy | Agriculture & fishing | 1985 |
| Forest Vihavainen Racing Oy | Arts & recreation | 1998 |
| Fysikaalinen hoitolaitos Fysiohuone Ky | Health & social care | 1995 |
| Goljat Capital Oy | Financial services | 2026 |
| Griffin Events Finland Oy | Arts & recreation | 2019 |
| Gyneg Oy | Health & social care | 2006 |
| HAMMASHOITO To Go Oy | Health & social care | 2024 |
| HH Maisemat Oy | Arts & recreation | 2023 |
| HP Logistics Oy | Transport & logistics | 2004 |
| HT-Racing Ky | Wholesale & retail | 1988 |
| Hakisto Oy | Administrative & support | 2024 |
| Halisen Kuljetus Ky | Transport & logistics | 1992 |
| HeTi Koti Oy | Health & social care | 2008 |
| Heidi Tähtinen Oy | Wholesale & retail | 1986 |
| Hienot Miehet Oy | Information & communication | 2025 |
| Huurreoksan Tila Avoin Yhtiö | Agriculture & fishing | 2023 |
| Hännikäinen Transport Oy | Transport & logistics | 2022 |
| Ideachip Machine Oy | Wholesale & retail | 2006 |
| Iksa Services Ky | Other services | 2005 |
| Inovatech Finland Oy | Wholesale & retail | 2017 |
| Insinööritoimisto HWL Oy | Professional & scientific | 2023 |
| Invest-Kymi Oy | Administrative & support | 1997 |
| Isännöinti Taipale Oy | Real estate | 2019 |
| J & J Trend Oy | Wholesale & retail | 2003 |
| JDahl Yhtiöt Oy | Construction | 2023 |
| JP Himanen Oy | Construction | 2018 |
| JS Kotiapu- ja mökkipalvelut Oy | Other services | 2026 |
| JT Jakelu Oy | Transport & logistics | 2018 |
| JY-Talotal Oy | Professional & scientific | 1996 |
| Jajohe Oy | Financial services | 1984 |
| Jalava Racing Oy | Arts & recreation | 2021 |
| Jan-Lenses Ky | Wholesale & retail | 1988 |
| Jouko Ahtiainen Ky | Construction | 1990 |
| Juha Vesalainen Ky | Agriculture & fishing | 1990 |
| Järvi-Suomen Juhla- ja Eräruokapalvelu Ky | Hospitality | 2001 |
| Järvi-Suomen Liikennekoulu Oy | Education | 2017 |
| K & J Neuvonen Oy | Hospitality | 2026 |
| K-valinta Eikantori Ky | Wholesale & retail | 1974 |
| K.Kyyrö Ky | Wholesale & retail | 1988 |
| K.Paasonen Ky. | Transport & logistics | 1987 |
| KL-Forest Oy | Agriculture & fishing | 2021 |
| Kaick Ky | Wholesale & retail | 1985 |
| Kake Randelin Rovers Oy | Professional & scientific | 1981 |
| Kaluste-Kippari Ky | Wholesale & retail | 1983 |
| Karmek Invest Oy | Financial services | 2011 |
| Kasvi-Design Kaija Valkonen avoin yhtiö | | 1990 |
| Kevee Oy | Manufacturing | 2007 |
| Kevetek Oy | Professional & scientific | 2006 |
| Kieppi Sawmill Oy | Manufacturing | 2017 |
| Kiesilä Metsä Oy | Agriculture & fishing | 2024 |
| Kiinteistö Oy Kangasniemen Seppä | Real estate | 2006 |
| Kiinteistö Oy Kelo-Finn | Real estate | 1983 |
| Kiinteistö Oy Lappeenrannan Kurrenkulma | Real estate | 1997 |
| Kiinteistö Oy Salo-Ranta | Real estate | 2015 |
| Kiinteistö Oy Veijo Pulkka | Real estate | 2009 |
| Kiinteistöosakeyhtiö Keskiväli | Real estate | 1957 |
| Kiinteistötoimisto Ihatsu Oy | Real estate | 2020 |
| Kiinteistöyhtiö Matti Nykänen Oy | Real estate | 2020 |
| Koillisnapa Oy | Professional & scientific | 2015 |