| Kristinestads Bogser Ab | Transport & logistics | 1987 |
| Kuljetus Ulfves Oy | Transport & logistics | 2011 |
| Ky KRS Westfood Kb | Wholesale & retail | 2008 |
| Ky Kristiinan Kalatuote Kb | Manufacturing | 1996 |
| Ky Lapväärtin Video-TV Kb | Construction | 1990 |
| Ky Nordfood Kb | Wholesale & retail | 2013 |
| Lappfjärds Hus Kb | Real estate | 1982 |
| Liikenne Auto-Bonus Oy | Transport & logistics | 2008 |
| Liisu Krs Oy | Wholesale & retail | 2011 |
| MTP Suupohja Oy MTP Syd Ab | Administrative & support | 2006 |
| Maansiirtoliike Ulfves Oy | Transport & logistics | 1982 |
| Magnus Marknadsförings Tjänst Kb | Wholesale & retail | 1999 |
| MasiRauta Oy | Wholesale & retail | 2014 |
| Megatrend eCommerce Oy | Wholesale & retail | 2024 |
| Mogwai Film & TV Ab | Information & communication | 2022 |
| Multi-trans Oy Ab | Transport & logistics | 1980 |
| Mäkitalo Fish Ab Oy | Wholesale & retail | 2026 |
| N Real Estate Oy | Real estate | 2025 |
| Nivekment Ab Oy | Real estate | 2024 |
| Nopporex Oy | Hospitality | 1998 |
| Nordautomation Oy | Manufacturing | 1991 |
| Osuuskunta Hyvä Tapa Harrastaa | Arts & recreation | 2015 |
| Oy AimoHarppaus Ab | Hospitality | 1992 |
| Oy Botniarosk Ab | Water & waste | 1996 |
| Oy Cervitos Ab | Administrative & support | 1987 |
| Oy Consisto Ab | Wholesale & retail | 2012 |
| Oy Ekma Ab | Real estate | 1987 |
| Oy Gastrina Ab | Hospitality | 2014 |
| Oy HD El-Sähkö Kristinestad Ab | Construction | 2014 |
| Oy Habbens Ab | Professional & scientific | 1985 |
| Oy Hannus Media Ab | Information & communication | 2017 |
| Oy J-E Rosenberg Ab | Wholesale & retail | 1985 |
| Oy J-M Consulting Ab | Professional & scientific | 1990 |
| Oy JES-Kaivuu Ab | Construction | 2008 |
| Oy Kenkä Sko Pihlaja Ab | Wholesale & retail | 1946 |
| Oy Kristiinan Autokoulu - Kristinestads Bilskola Ab | Education | 1976 |
| Oy KristinaMedi Ab | Health & social care | 2011 |
| Oy Krs Finnprime Ab | Wholesale & retail | 1996 |
| Oy Krs Vari-Tex Ab | Manufacturing | 1991 |
| Oy Metsäkoneyhtymä Aittamäki Ab | Agriculture & fishing | 1979 |
| Oy Olpek Ab | Wholesale & retail | 1997 |
| Oy Paarlasti Ab | Hospitality | 1999 |
| Oy Plåtburk Ab | Professional & scientific | 2010 |
| Oy Projekt-Makarna Ab | Professional & scientific | 1996 |
| Oy Puucomp Ab | Manufacturing | 1987 |
| Oy Recu-Tuote Ab | Manufacturing | 1993 |
| Oy Ronsson Ab | Hospitality | 2014 |
| Oy Royal Machine Ab | Agriculture & fishing | 1991 |
| Oy Salubörsen Ab | Financial services | 1990 |
| Oy Tare Ab | Wholesale & retail | 1984 |
| Oy Wood Paint Ab | Hospitality | 2007 |
| P.Itälaakso Oy | Administrative & support | 2019 |
| Petrin Lohi OY | Agriculture & fishing | 2006 |
| PHN Safekon Oy | Professional & scientific | 2021 |
| Parmansgatan 11 OY | Real estate | 2024 |
| Paugus Oy | Manufacturing | 2017 |
| Pienkone- ja kiinteistöhuolto Vesa Koivula Ky | Other services | 2001 |
| Potwell Oy | Wholesale & retail | 2002 |
| Proflex Oy | Other services | 2006 |
| Provenko Talouspalvelut Oy | Professional & scientific | 2025 |
| Pukimo Vilke, Lasse Vilkevuori kommandiittiyhtiö | Wholesale & retail | 1976 |
| RJ-Kone Oy | Administrative & support | 2023 |
| RSK Pohjanmaa Avoin yhtiö | Other services | 2012 |
| Rakema Oy Ab | Other services | 2017 |
| Rakennusliike Kiviranta Oy | Construction | 2023 |
| Rakennuspalvelu Esa Itälaakso Oy | Construction | 2010 |
| Ravintola Kissanpiiskaaja Avoin Yhtiö | | 1986 |
| Refa Oy Ab | Professional & scientific | 2007 |
| Refecom Oy | Professional & scientific | 2014 |
| Renholmen AB sivuliike Suomessa | Manufacturing | 2017 |
| RentUs Ab | Real estate | 2019 |
| Revelata Veritas Media OY | Information & communication | 2023 |
| Rooni Group Oy | Hospitality | 2025 |
| Rooni Siivouspalvelu oy | Administrative & support | 2023 |
| Rovestop Oy | Wholesale & retail | 1999 |
| SRB Tukku Oy Ab | Manufacturing | 2017 |
| Sam Sandelin & Co | Transport & logistics | 1992 |
| Seinäjoen Ruukin Portti Oy | Real estate | 2005 |
| Stenlunds Service Oy Ab | Other services | 2019 |
| Suunnittelutoimisto Talotuuma ky | Professional & scientific | 1988 |
| Suupohjan Hammaslaboratorio J. Mäkitalo Oy | Manufacturing | 1996 |
| TSD Technical Ab Oy | Professional & scientific | 2026 |
| Tavaratalo A. Talas Oy | Wholesale & retail | 1989 |
| Taxi Guldén Öb | Transport & logistics | 2019 |
| Tefoma Oy Ab | Other services | 1996 |
| Timpull Oy | Construction | 2007 |
| Trans-Antenni Oy | Construction | 1992 |
| V & M Koivula Oy | Manufacturing | 2015 |
| V & T Metsäranta Oy | Wholesale & retail | 2023 |
| Vekta AB OY | Administrative & support | 2010 |
| Valokuvaamo Aavamo avoin yhtiö | Professional & scientific | 1946 |
| Vauhdikas Oy | Administrative & support | 2017 |
| Vavesa Oy Ab | Construction | 2016 |
| Veikokri Oy | Wholesale & retail | 2025 |
| Velj. Keski-Hannula Oy | Other services | 1980 |
| Vinkel-Kiinteistöt Oy | Construction | 2008 |
| Vipe Oy | Construction | 2002 |
| Wberg Consult OyAb | Professional & scientific | 2024 |
| Wind Farm Lappfjärd Oy | Energy | 2017 |