| Oy Lamont Ab | Manufacturing | 1990 |
| Oy Lassas Ab | Wholesale & retail | 1972 |
| Oy Latrack Ab | Real estate | 1982 |
| Oy Linds Kök Ab | Hospitality | 2000 |
| Oy MaWe Fastigheter Ab | Real estate | 2020 |
| Oy MaWe Trading Ab | Wholesale & retail | 2013 |
| Oy Mediling Ab | Health & social care | 2003 |
| Oy NAREMA Ab | Professional & scientific | 2019 |
| Oy Nicoy Ab | Wholesale & retail | 2008 |
| Oy Nixell Logistics Ab | Transport & logistics | 2012 |
| Oy Närko Ab | Manufacturing | 1977 |
| Oy Närko Group Ab | Manufacturing | 1943 |
| Oy Näverås Service Ab | Manufacturing | 2006 |
| Oy Patrik Grönvik Ab | Agriculture & fishing | 1996 |
| Oy Pedelux Ab | Wholesale & retail | 1988 |
| Oy Pjelax Energi Ab | Energy | 2007 |
| Oy Pool Interactive Ab | Information & communication | 1989 |
| Oy Pärlan i Närpes Ab | Wholesale & retail | 1990 |
| Oy Rackman Ab | Manufacturing | 1996 |
| Oy Ronny Berg Ab | Agriculture & fishing | 2016 |
| Oy SanCon Finland Ab | Construction | 2008 |
| Oy Sand Marketing Ab | Wholesale & retail | 1986 |
| Oy Simons Invest Ab | Administrative & support | 2007 |
| Oy Sjöbloms Golv Ab | Construction | 1998 |
| Oy Skrifvars Ab | Real estate | 1989 |
| Oy Stenholm Real Ab | Real estate | 1989 |
| Oy Tawi Product Ab | Wholesale & retail | 1995 |
| Oy TiRe Trading Ab | Professional & scientific | 2025 |
| Oy Trailer RIGG Ab | Manufacturing | 1978 |
| Oy Ulrai Ab | Wholesale & retail | 1989 |
| Oy Vasa Cargo Center Ab | Transport & logistics | 2000 |
| Oy Vikstrand Ab | Transport & logistics | 1987 |
| Oy Wikman Consulting Ab | Professional & scientific | 1996 |
| PASE Media Ab Oy | Professional & scientific | 2021 |
| PaSte Ab | Administrative & support | 2011 |
| Patricia Riddar Ab | Health & social care | 2023 |
| Pinta Color Oy Ab | Manufacturing | 2016 |
| Polexa Ab Oy | Real estate | 2021 |
| R & R Nummela Öppet bolag | Manufacturing | 1986 |
| RE-Trading Ab | Real estate | 2022 |
| RJ-Wood Kb | Manufacturing | 1995 |
| Ragnarinvest Ab | Financial services | 1994 |
| Reo-Tuote Oy | Manufacturing | 1967 |
| Resto Prego Närpes AB | Hospitality | 2025 |
| Rune Lassfolk & Co. öppet bolag | Real estate | 1985 |
| S Rörteam Oy Ab | Construction | 2013 |
| SW-Products, öppet bolag | Wholesale & retail | 1984 |
| SeTo Consulting Oy | Administrative & support | 2021 |
| Service G. Stenfors Kb | Other services | 1986 |
| Servicestation Bengt Nordström kommanditbolag Huoltoasema Bengt Nordström kommandiittiyhtiö | Wholesale & retail | 1976 |
| Siggpac Oy Ab | Agriculture & fishing | 2005 |
| Siggs Värme Ab | Energy | 2011 |
| Simons Infra Oy Ab | Construction | 2018 |
| Skinnars Grönsaker Ab | Agriculture & fishing | 1992 |
| Skrifvars Entreprenad Ab Oy | Agriculture & fishing | 2015 |
| Soda Home Ab | Real estate | 2022 |
| Strandkulla Ab Oy | Real estate | 2020 |
| Styrkeboxen Ab | Education | 2022 |
| Stöd Botnia Tuki Ab Oy | Hospitality | 2023 |
| Sunwine Oy Ab | Wholesale & retail | 2011 |
| Sven Sigg Ab | Agriculture & fishing | 1997 |
| Syd-Österbottens El-byrå Ab | Construction | 2020 |
| Sydbottens Bowlinghall Kb - Suupohjan Keilailuhalli Ky | Arts & recreation | 1986 |
| Träffhallen AB | Arts & recreation | 2013 |
| TS-Trading Oy Ab | Wholesale & retail | 2005 |
| Team Kuuttinen Ab Oy | Arts & recreation | 2022 |
| TiNiTech Oy | Construction | 2020 |
| Tjöck Eken Ab | Real estate | 2026 |
| Tombi Ab | Real estate | 2026 |
| Tommy's garage Ab Oy | Other services | 2019 |
| Transportfirma Börje Blomberg Ab | Transport & logistics | 1983 |
| Törveskog Ab | Agriculture & fishing | 2012 |
| Törvetrading Ab Oy | Real estate | 2016 |
| Ulrika och Anders Bärdén Ab | Agriculture & fishing | 1996 |
| V&S Entreprenad Ab Oy | Construction | 2021 |
| Vensped Oy | Transport & logistics | 2018 |
| Viet's Restaurang AB | Hospitality | 2020 |
| Vikbergs Revision Ab Oy | Professional & scientific | 2008 |
| VindIn Svalskulla Ab/Oy | Construction | 2013 |
| WN Lingual Ab | Professional & scientific | 2021 |
| Wellness Fysio JR Öppet bolag | Health & social care | 2015 |
| Wideroos Infra Ab Oy | Construction | 1998 |
| Yamberla Ramos, öppet bolag | Wholesale & retail | 2012 |
| kb Carlmec ky | Manufacturing | 1986 |
| rBit Ab | Information & communication | 2019 |
| Öppet bolag Drillers Avoin yhtiö | Wholesale & retail | 1990 |
| Öppet bolag N. Simons Trans Avoin yhtiö | Transport & logistics | 1995 |
| Österlunds Transport, öppet bolag | Transport & logistics | 1990 |