| 4Us Oy | Information & communication | 2019 |
| A. Reponen Oy | Manufacturing | 2006 |
| AON Agency Oy | Wholesale & retail | 2025 |
| Adek Oy | Transport & logistics | 2010 |
| Adepta Tilat Oy | Real estate | 2007 |
| Aikeita Oy | Wholesale & retail | 2026 |
| Akatiitti Oy | Other services | 1987 |
| Akva Filter Oy | Manufacturing | 1980 |
| Akva Group Oy | Manufacturing | 2020 |
| Apex Yhtiöt Oy | Education | 2024 |
| Aritrac Oy | Construction | 2011 |
| Autohuolto Lehtonen Oy | Other services | 2020 |
| Avoin yhtiö Jorma & Kaisa Puistovirta | Hospitality | 1990 |
| Con-V Modul Oy | Other services | 2020 |
| Dataseed Oy | Information & communication | 1999 |
| Dirlandaa Oy | Real estate | 2000 |
| EMS-Invest Oy | Financial services | 1987 |
| ET-Eväskori Oy | Wholesale & retail | 2007 |
| Edustusliike K. Friman Oy | Wholesale & retail | 1997 |
| Erttin Oy | Construction | 2011 |
| FID Engineering Oy | Wholesale & retail | 2008 |
| FINPETROL Oy | Construction | 2009 |
| Farma Kauppa Oy | Wholesale & retail | 2019 |
| Feel Good Safarit Oy | Administrative & support | 2012 |
| Finjax Oy | Information & communication | 2022 |
| Finnfjällen Oy | Agriculture & fishing | 2022 |
| Grreen Desi OY | Wholesale & retail | 2020 |
| Golden Angel Oy | Construction | 2016 |
| GrafiTeam Oy | Manufacturing | 2018 |
| Grilli-Kahvio Tikander Oy | Hospitality | 1990 |
| HBC-Asennus Oy | Other services | 1990 |
| HOT Technology Oy | Construction | 2020 |
| Hairkrista Oy | Other services | 2017 |
| HaloHouse Oy | Professional & scientific | 2019 |
| Helsingin Oravanhäntä Oy | Agriculture & fishing | 1996 |
| Herkkuhylly Ky | Wholesale & retail | 2021 |
| IS-Set Ky | Construction | 1997 |
| Ilmastointi ja Mittaus Kämppi Ky | Construction | 1989 |
| Insinöörityö Hentinen Oy | Construction | 1989 |
| Itä-Hämeen Hevospalvelut Johanna Järvinen Ky | Agriculture & fishing | 2010 |
| JH Fix Oy | Construction | 2025 |
| JJ Rakennus ja kone Oy | Construction | 2023 |
| JR Maatilankone OY | Wholesale & retail | 2020 |
| JS Kuljetus Oy | Transport & logistics | 2024 |
| JTL-Asennus Ky | Construction | 2009 |
| JarMer Oy | Transport & logistics | 2017 |
| Jari ja Hanna Koskenniemi, avoin yhtiö | Transport & logistics | 1991 |
| Jarin Koti- ja Mökkiapu Oy | Administrative & support | 2023 |
| Jerefix Oy | Information & communication | 2023 |
| Jousan Kone Oy | Manufacturing | 2008 |
| Jousanpakkaus Oy | Manufacturing | 2025 |
| Joutsan Ekokaasu Oy | Energy | 2011 |
| Joutsan Fysiopiste Oy | Health & social care | 2013 |
| Joutsan Huolto-osa Oy | Wholesale & retail | 1989 |
| Joutsan Huttulainen Oy | Hospitality | 1979 |
| Joutsan Kamara Oy | Real estate | 2003 |
| Joutsan Kiinteistöhuolto- ja talonmiespalvelu Jokita Oy | Administrative & support | 1998 |
| Joutsan Konehuolto Oy | Manufacturing | 2004 |
| Joutsan Kukka-Sari Ky | Wholesale & retail | 2016 |
| Joutsan Lämpö Oy | Energy | 1976 |
| Joutsan Lämpölaitehuolto Oy | Construction | 2011 |
| Joutsan Oluttehdas Oy | Manufacturing | 2023 |
| Joutsan Seutu Oy | Information & communication | 1974 |
| Joutsan Tili ja Isännöinti Oy | Professional & scientific | 2000 |
| Joutsan Toimistotekniikka Ky | Wholesale & retail | 1994 |
| Joutsan Vesihuolto Oy | Water & waste | 1966 |
| Joutsan Yrityskiinteistöt Oy | Real estate | 2007 |
| Joutsan halli Oy | Transport & logistics | 2025 |
| Juipin Autohuolto Oy | Other services | 1991 |
| JustSo Oy | Construction | 1979 |
| KJT-Asennus Oy | Construction | 2005 |
| Kantakaitala Oy | Real estate | 2005 |
| Kellomäki Ky | Construction | 2012 |
| Keski-Suomen Kehittämiskeskus Oy | Professional & scientific | 1993 |
| Kiinteistö Oy Joutsan Länsitie 2 | Real estate | 2012 |
| Kiinteistö Oy Joutsan Puistola | Real estate | 1985 |
| Kiinteistö Oy Joutsan vuokra-asunnot | Real estate | 1992 |
| Kiinteistö Oy Joutsanranta | Real estate | 1977 |
| Kiinteistö Oy Reponen | Real estate | 2014 |
| Kiinteistöhuolto A.Manninen Oy | Administrative & support | 2006 |
| Kivitammi Oy | Real estate | 2009 |
| Konekorjaamo Matti Lahtonen Oy | Other services | 2009 |
| Konetyö Haikula Oy | Administrative & support | 1994 |
| Koneurakointi Forester Oy | Manufacturing | 2009 |
| Koneurakointi Tommi Jokinen Oy | Construction | 2004 |
| KotiShala Oy | Administrative & support | 2024 |
| Kotimäki Yhtiöt Oy | Construction | 1988 |
| Kukkatiimi Ky | Wholesale & retail | 2001 |
| Kukko ja Kili Oy | Arts & recreation | 2020 |
| Kuljetus K & M Otava | Transport & logistics | 1990 |
| Kuljetusliike Järvinen Ky | Transport & logistics | 2010 |
| Kuljetusliike M. Saarela Ky | Transport & logistics | 1994 |
| Kuurne -palvelut Oy | Financial services | 2012 |
| Lahtonen Matti Ky | Agriculture & fishing | 2005 |
| Lamminmäen Juhla ja Peti avoin yhtiö | Hospitality | 2022 |
| Lamminmäen Tilat Ky | Hospitality | 1994 |
| Lekker Bru Oy | Professional & scientific | 2022 |
| Louhinta ja piikkaus I. Tonteri Oy | Construction | 2000 |
| Lvi-Lavia Oy | Construction | 2019 |
| Länkelin Huoneistot Oy | Real estate | 2005 |