| AK-Tieisännöinti Oy | Administrative & support | 2019 |
| Ahonet Oy | Information & communication | 1988 |
| Alajärven Kodinkone Ky | Wholesale & retail | 1987 |
| Alajärven Sorahuolto Oy | Mining & quarrying | 1966 |
| Alfa Consulting Oy | Professional & scientific | 2002 |
| Atk- ja laskentapalvelu Ahopelto Oy | Information & communication | 1985 |
| Autohuolto Uusitupa Oy | Other services | 2019 |
| Automarkus Ky | Wholesale & retail | 1973 |
| Camisole Oy | Construction | 2001 |
| Daniel's Grillbar Oy | Hospitality | 2023 |
| Ekonomi-ohjelmistot Oy | Information & communication | 1992 |
| Elämän Verran Aikaa Oy | Health & social care | 2017 |
| Emeda Oy | Health & social care | 2024 |
| Finlandia Tuote Oy | Wholesale & retail | 2013 |
| HK-Turkis Oy | Agriculture & fishing | 1994 |
| Hautauspalvelu Rauha Oy | Other services | 2021 |
| Hernesniemen Maanrakennus Oy | Construction | 1995 |
| Hämeenniemen Kutomo ky | Manufacturing | 1981 |
| J.P. Oksa Oy | Real estate | 2018 |
| JCA Documentation Oy | Professional & scientific | 2011 |
| JV Rakenne & Energia Oy | Professional & scientific | 2020 |
| Jara Sammutin Oy | Manufacturing | 2009 |
| Jokivarren Maito Oy | Agriculture & fishing | 2018 |
| Juha Pyy Oy | Agriculture & fishing | 1989 |
| Jänisvex avoin yhtiö | Manufacturing | 2011 |
| Järvikaluste Ky | Manufacturing | 1991 |
| Järviseudun Mediatalo Oy | Information & communication | 2014 |
| Järviseudun vuokratalot Oy | Real estate | 2018 |
| Kalajuttu Oy | Wholesale & retail | 2002 |
| Kalusteyhtymä Öörni Ky | Wholesale & retail | 1989 |
| Kiinteistö Oy Lappajärven Hyyrynkuja | Real estate | 1993 |
| Kiinteistö Oy Lappajärven Vuokratalot | Real estate | 1997 |
| Kiinteistö- ja Rakennuspalvelu Viitala Oy | Construction | 2021 |
| Kiinteistöhuolto Esa Hernesniemi Oy | Administrative & support | 2010 |
| Konehuolto Juttuniemi Oy | Other services | 2002 |
| Konekorjaus Viinamäki Oy | Other services | 2016 |
| Koskikievari Lappajärvi Oy | Hospitality | 2002 |
| Ksenian Tupa Oy | Hospitality | 2015 |
| Kuljetus Ari Ahopelto Oy | Transport & logistics | 1991 |
| Kärnänsaaren Turkis Oy | Agriculture & fishing | 1995 |
| Kärnänsaaren Vesiosuuskunta | Water & waste | 1974 |
| LAhub Oy Ab Ltd | Wholesale & retail | 2013 |
| LP-Invest Oy | Manufacturing | 2019 |
| LP-Laituri Oy | Manufacturing | 2023 |
| Laatukumi Oy | Wholesale & retail | 2023 |
| Lakiasiaintoimisto Savola & Savola | Professional & scientific | 1993 |
| LapCaravan Oy | Wholesale & retail | 2018 |
| Lappajärven Kodinkone avoin yhtiö | | 1992 |
| Lappajärven Konetyöstö Oy | Manufacturing | 1985 |
| Lappajärven Laatunikkarit Ky | Construction | 2015 |
| Lappajärven Loma-Golf Oy | Real estate | 1990 |
| Lappajärven Lämpö Oy | Energy | 2014 |
| Lappajärven Osuuspankki | Financial services | 1924 |
| Lappajärven T-Tarvike Oy | Manufacturing | 1995 |
| Lappajärven Vesiosuuskunta | Water & waste | 1949 |
| Lappajärven Värjäämö Oy | Manufacturing | 1979 |
| Lappajärven puutarvike Ky | Manufacturing | 1990 |
| Lappajärvi Invest Oy | Real estate | 2023 |
| LeikePaja Oy | Information & communication | 2026 |
| Lemmikkijuttu Tuuri Oy | Wholesale & retail | 2009 |
| Linjaliikenne Hernesniemi Oy | Transport & logistics | 1975 |
| Luomaset Oy | Transport & logistics | 1994 |
| Länsisarven Erähuvilat Ky | Hospitality | 1996 |
| Makosa sokerointi Oy | Other services | 2024 |
| Marpas Oy | Professional & scientific | 1982 |
| Mecaset Oy | Manufacturing | 2007 |
| Minnan Fysio ja Hyvinvointi oy | Health & social care | 2017 |
| Mytima Oy | Other services | 2008 |
| NitroCut OY | Manufacturing | 2018 |
| NovaBell Solutions Oy | Construction | 2026 |
| PO Sports Oy | Other services | 2020 |
| Painolampi Oy | Manufacturing | 1980 |
| RT-Fox Oy | Agriculture & fishing | 2002 |
| Rakennus Pa-Ro Oy | Construction | 1994 |
| Rakennusliike Hernesniemi Oy | Construction | 1981 |
| Rengashuolto R.Angervisto Oy | Transport & logistics | 2025 |
| Rinka Oy | Real estate | 1990 |
| SV-Turkis Oy | Agriculture & fishing | 1976 |
| Savola Fur Oy | Agriculture & fishing | 2004 |
| Savolan Loma Oy | Agriculture & fishing | 1997 |
| Savolan Minkki, Savola & Kumpp. | Agriculture & fishing | 1976 |
| Sol Custom Oy | Professional & scientific | 2022 |
| Starkon Oy | Professional & scientific | 2014 |
| Studio Fresco Oy | Wholesale & retail | 2021 |
| Särkiniemen Turkistarha Oy | Agriculture & fishing | 1994 |
| T.Korkea-aho Oy | Construction | 1985 |
| TIRA-Tools Oy | Wholesale & retail | 2018 |
| Turkis Vastahakonen OY | Agriculture & fishing | 2012 |
| Tarhapojat Oy | Agriculture & fishing | 1995 |
| Tarhaturkis Jarmo Savola Oy | Agriculture & fishing | 1997 |
| Teimo Koskela Oy | Agriculture & fishing | 1996 |
| Termo Partners Oy | Manufacturing | 1998 |
| Toolfin Oy | Wholesale & retail | 2016 |
| Turkistarha Jari J Ollila Oy | Agriculture & fishing | 1997 |
| Valko-Turkis Oy | Agriculture & fishing | 1979 |
| Veljekset Savola Oy | Agriculture & fishing | 1997 |
| Verapal Oy | Financial services | 1998 |
| Volcano Fur Kommandiittiyhtiö | Manufacturing | 1985 |