| A Savvest Oy | Construction | 2025 |
| AJS Works Oy | Construction | 2025 |
| AT-Import Oy | Wholesale & retail | 2010 |
| Ab Aurol Oy | Wholesale & retail | 2015 |
| Ahlax Oy | Wholesale & retail | 2004 |
| Aino Plus Sauna Oy | Manufacturing | 2013 |
| Alajar Oy | Agriculture & fishing | 2022 |
| Alihankinta Unkuri Oy | Manufacturing | 2008 |
| AngelStar Ky | Wholesale & retail | 2014 |
| Anssi Penttilä Oy | Transport & logistics | 1991 |
| Artturin Talo Oy | Education | 1989 |
| Asennusyritys Ylinen Ky | Manufacturing | 2009 |
| Aski-Trans Oy | Transport & logistics | 2017 |
| Avoin yhtiö Leskisen Kukkakauppa ja Hautaustoimisto | Wholesale & retail | 1983 |
| Custom Parts Oy | Manufacturing | 2006 |
| Dually Oy | Wholesale & retail | 2004 |
| Epmov OY AB | Wholesale & retail | 2023 |
| ERaPa Oy | Construction | 2022 |
| Emilia Takalaakso Oy | Education | 2019 |
| Farmtools Oy | Wholesale & retail | 1980 |
| Fasadi Design Ky | Manufacturing | 1986 |
| Firepower Finland Oy | Manufacturing | 2013 |
| HP Kuljetus Hietamäki Ky | Transport & logistics | 1997 |
| HT-Truck Oy | Manufacturing | 2006 |
| Hake- ja Konepalvelu V&K Oy | Agriculture & fishing | 2026 |
| Hietamet Oy | Manufacturing | 1990 |
| Hietamäkifur Oy | Agriculture & fishing | 1997 |
| Hilamet Oy | Manufacturing | 1994 |
| Hirvelän Turkis Ky | Agriculture & fishing | 1986 |
| Häjy Haapoja Oy | Arts & recreation | 2011 |
| Härmä Golf Oy | Arts & recreation | 2001 |
| Härmämedi Oy | Health & social care | 2012 |
| Härmän Kuntoutus Oy | Health & social care | 2005 |
| Härmän Maalaus ja Restaurointi Oy | Construction | 2022 |
| Härmän Nauha Oy | Manufacturing | 1981 |
| Härmän Seudun Putki Ky | Construction | 1990 |
| Härmän Tehonosto Oy | Wholesale & retail | 2001 |
| Härmän Vuokrakonepalvelu Oy | Administrative & support | 1987 |
| Härmänmaan Ympäristöpalvelu Oy | Water & waste | 2017 |
| Insinööripalvelu Kattelus Ky | Professional & scientific | 1996 |
| Insinööritoimisto V-P Takala Oy | Real estate | 1980 |
| Insinööritoimisto Vekaplan Oy | Professional & scientific | 2015 |
| J&J Turkis Oy | Agriculture & fishing | 2015 |
| JA-STI RAKENNUS Oy | Construction | 2020 |
| JM2-Group Oy | Transport & logistics | 1995 |
| JRaPa Oy | Construction | 2025 |
| JS-MetalWorks Oy | Manufacturing | 2025 |
| Jokitupa Oy | Agriculture & fishing | 2018 |
| Joosepin Pojat Oy | Agriculture & fishing | 2025 |
| Juha Kangas Racing Oy | Arts & recreation | 1997 |
| Junkkari Oy | Manufacturing | 2002 |
| K-Rauta Tamminen Ylihärmä Ky | Wholesale & retail | 1951 |
| Karhuvuori Oy | Manufacturing | 1985 |
| Kaskea Group Oy | Manufacturing | 1954 |
| Kattotrio Oy | Construction | 2025 |
| Kaupinkangas Oy | Agriculture & fishing | 2019 |
| Keskisen Putkiasennus Ky | Construction | 2007 |
| Kiinteistö Oy Härmän Palvelukeskus | Real estate | 2006 |
| Kiinteistö Oy Lappajärven Tulipesä | Real estate | 2002 |
| Kiinteistö Oy Prossa Invest | Real estate | 1988 |
| Koivulan Turkistarha Ky | Agriculture & fishing | 1982 |
| Koneurakointi Mäki-Kuusela Ky | Construction | 2010 |
| Korpien Oy | Agriculture & fishing | 2011 |
| Kosolan Vesiosuuskunta | Water & waste | 1964 |
| Koukkuluoman Kuivaaja Avoin Yhtiö | Agriculture & fishing | 2013 |
| Kujanpään Autokorjaamo Oy | Other services | 2003 |
| Kuljetus ja raivaus Lahti Oy | Transport & logistics | 1986 |
| Kuljetusliike H.Tikkala Oy | Transport & logistics | 2008 |
| Kuljetusliike Hannu Kleimola Oy | Transport & logistics | 1983 |
| Kuljetusliike Haukkala Ky | Transport & logistics | 1982 |
| Kuljetusliike M. Palo Ky | Transport & logistics | 2017 |
| Kuljetusliike Rinkineva Oy | Transport & logistics | 1981 |
| Kuljetusliike Trans Härmä Oy | Transport & logistics | 1998 |
| Kuljetuspalvelu J & J Saari, avoin yhtiö | Transport & logistics | 2002 |
| Kätevä-Tuote Oy | Manufacturing | 1983 |
| Lakeuden Juurespakkaajat Oy | Administrative & support | 1997 |
| Lehtimäki Kaluste ja Remontti Oy | Construction | 2021 |
| Lilja Farms Oy | Agriculture & fishing | 2011 |
| Lukaalis Oy | Real estate | 1998 |
| Luoman broileri Oy | Agriculture & fishing | 1990 |
| Met-Fu Cont Ky | Manufacturing | 2013 |
| MSK Finland Oy | Manufacturing | 2002 |
| MSK Group Oy | Manufacturing | 1979 |
| MSK Plast Oy | Manufacturing | 1966 |
| Maisa Pirttinen Oy | Professional & scientific | 1998 |
| Merenkurkun Helmi Oy | Construction | 2006 |
| Metsäpalvelu Kojonen Oy | Agriculture & fishing | 2023 |
| MusterTek Oy | Construction | 2012 |
| Mäkiniemen Sikalat Oy | Agriculture & fishing | 2007 |
| Netcraft Oy | Information & communication | 2016 |
| Nevan Entertainment Oy | Information & communication | 2016 |
| Nordic Digital Creations Oy | Administrative & support | 2022 |
| PR Group Oy | Wholesale & retail | 2021 |
| Paju Works Oy | Construction | 2025 |
| Partson Oy | Wholesale & retail | 2018 |
| Pasi Annala Oy | Agriculture & fishing | 1994 |
| Pehtoorin Koiravaruste Oy | Wholesale & retail | 2023 |
| Pellon Group Oy | Manufacturing | 1971 |
| Pemet Oy | Manufacturing | 2008 |
| Petri Hietamäki Ky | Transport & logistics | 2007 |