| A Forest Oy | Agriculture & fishing | 2017 |
| AWERA Oy | Information & communication | 2026 |
| Anttman ky | Construction | 2001 |
| Argosite Oy | Information & communication | 2026 |
| Aropro Oy | Professional & scientific | 2021 |
| Asennustekniikka Katajisto Oy | Wholesale & retail | 2000 |
| Aulemir Oy | Manufacturing | 2008 |
| Aurora Quest Oy | Professional & scientific | 2024 |
| Autoväri Keijo Hirvonen Oy | Wholesale & retail | 1972 |
| Besafeworld Oy | Administrative & support | 2020 |
| Blendy Oy | Other services | 2024 |
| BlinRak Oy | Construction | 2007 |
| Blue Capital Oy | Financial services | 2021 |
| Brahea Capital Oy | Real estate | 2005 |
| BrainyDay Visual Oy | Information & communication | 2018 |
| Bumppu Group Oy | Manufacturing | 2025 |
| Bumppu Oy | Manufacturing | 2024 |
| CNC-Metallitekniikka Oy | Manufacturing | 2006 |
| CTM-Consulting Oy | Professional & scientific | 2007 |
| Carelsoft Oy | Information & communication | 1997 |
| Codetar Oy | Information & communication | 2026 |
| Concella Oy | Manufacturing | 2017 |
| Ecoaims Oy | Professional & scientific | 1997 |
| Elektro-Metek Oy | Manufacturing | 1990 |
| Emlis Oy | Financial services | 2026 |
| Emuri Oy | Other services | 1993 |
| Erola Group Oy | Transport & logistics | 2020 |
| FL3X Hyvinvointi Oy | Health & social care | 2024 |
| Finnish Wood & Bioenergy Ky | Construction | 2000 |
| Fitness Media Oy | Arts & recreation | 2006 |
| Fossilisti Yhtiöt Oy | Information & communication | 2026 |
| Geosaaga Oy | Information & communication | 2009 |
| Greenfox Oy | Manufacturing | 1997 |
| Gröhn R Oy | Professional & scientific | 2012 |
| HKK-Kuljetus Oy | Transport & logistics | 1993 |
| HR-Myynti Oy | Manufacturing | 1996 |
| Haka Talopalvelu Oy | Construction | 2015 |
| Hiihtokulma Oy | Wholesale & retail | 2022 |
| Hirvosen Peruna Oy | Agriculture & fishing | 2010 |
| Hirvosen Puutarha Ky | Agriculture & fishing | 1983 |
| HyvänOlon Mylly Oy | Other services | 2020 |
| Hyvönen Stable Oy | Education | 2003 |
| Höljäkän Kuljetus Oy | Transport & logistics | 1995 |
| Ideaomena Oy | Professional & scientific | 2007 |
| Idendis Oy | Professional & scientific | 2021 |
| Idän Holding Oy | Financial services | 2025 |
| Idän Mekaniikka Oy | Professional & scientific | 2025 |
| Ilmonen Family Oy | Real estate | 2020 |
| Insinööritoimisto JRP Oy | Professional & scientific | 1990 |
| Insinööritoimisto KJ Oy | Professional & scientific | 2019 |
| Irem avoin yhtiö | Hospitality | 2010 |
| Isännöinti Tiet ja Talot Oy | Real estate | 2008 |
| Itä-Suomen Hydrauliikka Oy | Wholesale & retail | 2020 |
| Itä-Suomen Julkisivumaalaus Oy | Construction | 1999 |
| Itä-Suomen Sammutinhuolto Oy | Manufacturing | 2010 |
| Itä-Suomen teollisuusmaalaus Oy | Construction | 2021 |
| ItäTrail Oy | Arts & recreation | 2025 |
| J. Hällström Oy | Construction | 2009 |
| JL Consulting & Capital Oy | Health & social care | 2022 |
| JM Maritime Oy | Administrative & support | 2025 |
| JOROL Oy | Real estate | 2017 |
| JR-Tasote Oy | Construction | 1997 |
| JTV-Sähkö Oy | Construction | 2018 |
| Jaakkolan Tukku Oy | Wholesale & retail | 2004 |
| Jadeca Oy | Wholesale & retail | 2005 |
| Jaku Yhtiöt Oy | Professional & scientific | 2007 |
| JiiÄr Urakointi Oy | Administrative & support | 2024 |
| Joensuun Autolavarakenne Ky | Other services | 1988 |
| Joensuun Korivärikeskus Oy | Other services | 2015 |
| Joensuun Meskari Oy | Construction | 1994 |
| Jukepod avoin yhtiö | Information & communication | 2017 |
| Jumppanen Invest Oy | Administrative & support | 2018 |
| Juppi-laituri Oy | Manufacturing | 2009 |
| Järvi-Suomen Energiasuunnittelu Oy | Professional & scientific | 2008 |
| Kaskitraus OY | Transport & logistics | 2019 |
| KKR Kiinteistö Oy | Real estate | 2014 |
| KKR Steel Oy | Manufacturing | 2014 |
| KP-Markkinointi Oy | Wholesale & retail | 2011 |
| KSJ-Service Oy | Manufacturing | 2019 |
| Kaapon Autopalvelu Oy | Other services | 2022 |
| Kaikki Punaiselle Oy | Real estate | 2024 |
| Kalliolahden Kala Oy | Agriculture & fishing | 2017 |
| Karelia Charter Oy | Administrative & support | 2008 |
| Karelian Lihajaloste Oy | Manufacturing | 1989 |
| Karjalan ATK-Awot Oy | Information & communication | 2006 |
| Karjalan Kaivupalvelu Oy | Construction | 2013 |
| Karjalan Kirkas Oy | Real estate | 2020 |
| Karvin Oy | Real estate | 1991 |
| Keito Art'n Games Oy | Information & communication | 2016 |
| KettuCapital Oy | Financial services | 2012 |
| Kiinteistö Oy Hirvonen | Real estate | 2017 |
| Kiinteistö Oy Kievarintie 2 | Real estate | 1991 |
| Kiinteistö Oy Koppelonkämppä | Real estate | 2007 |
| Kiinteistö Oy Liperin Yrittäjänpolku 8 | Real estate | 2009 |
| Kiinteistö Oy Liperin vuokratalot | Real estate | 1986 |
| Kiinteistö Oy Somparuusu | Real estate | 1997 |
| Kiinteistö Valkonen Oy | Construction | 2019 |
| Kiinteistöosakeyhtiö Pärnävaaran koiraurheilukeskus Oy | Real estate | 2011 |
| Kikal Tuote avoin yhtiö | Wholesale & retail | 1996 |
| Kirkkolahden Panimo Oy | Manufacturing | 2024 |