| 0.7 design Oy | Professional & scientific | 2014 |
| 16bit Oy | Information & communication | 2014 |
| 1780 Heidi Lindholm Oy | Wholesale & retail | 2021 |
| 2L Palvelut Ky | Professional & scientific | 2005 |
| AB Phoenix Boats OY | Manufacturing | 2013 |
| AC DC Electric Oy | Construction | 2014 |
| AG Service Ab Oy | Manufacturing | 2021 |
| Ab Christer Forss Oy | Transport & logistics | 1999 |
| Ab Engelsby Verk - Engelsbyn Tehtaat Oy | Wholesale & retail | 1986 |
| Ab Eriksson Logging Oy | Agriculture & fishing | 2021 |
| Ab Leif Forss Oy | Construction | 2000 |
| Ab Roger Forss Oy | Construction | 2008 |
| Ab Seaside Oy LKV | Real estate | 2013 |
| Actiwell Ab Oy | Arts & recreation | 2008 |
| AgriTrade Ab Oy | Water & waste | 2017 |
| All-Tex Avoin Yhtiö | Wholesale & retail | 1989 |
| Almis Ab Oy | Real estate | 1997 |
| Andelslaget Kimitoöns Skattetjänst | Professional & scientific | 2005 |
| Anttis Taxi Ab Oy | Transport & logistics | 2017 |
| Artvision Oy | Wholesale & retail | 1986 |
| Arvon Rakennus Oy | Construction | 2019 |
| B5 Studio Oy | Information & communication | 2023 |
| BOJ Kiinteistöt Oy | Real estate | 2017 |
| Begravningstjänst-Hautauspalvelu Johanna Sjöberg Ab | Other services | 2025 |
| Binas Kb | Wholesale & retail | 1985 |
| Blomqvist Forest Ab | Agriculture & fishing | 2003 |
| Blue Parrot Oy | Professional & scientific | 2010 |
| Brix Arendus OÜ, Suomen sivuliike | Construction | 2017 |
| Bruks Bröd Ab | Manufacturing | 1989 |
| Byggma Marketing Services Oy | Professional & scientific | 2026 |
| CWK Group Oy | Other services | 2019 |
| Cedde Trans Ab | Transport & logistics | 2002 |
| Civil Tech Oy Ab | Professional & scientific | 2005 |
| Clipper Plåt-Pelti Ab | Construction | 2001 |
| Concepta Oy | Information & communication | 1996 |
| Ctrl Alt Delot Consulting Oy | Information & communication | 2025 |
| Discover True You OY | Education | 2023 |
| Dotteria Oy | Education | 2026 |
| E.Lindroos Construction Ab Oy | Real estate | 2014 |
| ELC Byggtjänst Ab - ELC Rakennuspalvelu Oy | Construction | 2023 |
| EcoNord Ab | Construction | 2023 |
| Eero Alho Photography Oy | Professional & scientific | 2022 |
| Ekniemi Osuuskunta | Hospitality | 2012 |
| Ensadent Oy | Health & social care | 2021 |
| Esmerauta Oy | Wholesale & retail | 2025 |
| Ewida-Rest Oy | Hospitality | 1995 |
| Fastighets Ab Kimito Business Center Kiinteistö Oy | Real estate | 2003 |
| Fastighets Ab Kimito Handelshus | Real estate | 2018 |
| Fastighets Ab Rolfuno | Real estate | 1989 |
| Förlags Ab Lindan Kustannus Oy | Information & communication | 1969 |
| GP Boatservice Ab Oy | Manufacturing | 2018 |
| Gammelby Marina Ab Oy | Manufacturing | 2025 |
| Georak Oy | Professional & scientific | 1996 |
| Global Influencer Network Oy | Professional & scientific | 2026 |
| Global Investment and Education Marketing Company Oy | Professional & scientific | 2023 |
| Gropa Holding Ab | Financial services | 2022 |
| Gustafssons Plåtslageri Ab Oy | Construction | 2023 |
| HKP Mylly Oy | Information & communication | 2018 |
| HN Electric Oy Ab | Construction | 2019 |
| Hevospalvelut Hanna Nurmi Ky | Arts & recreation | 2019 |
| Hirvotek Oy | Real estate | 2017 |
| Hudhelse Finland Oy | Wholesale & retail | 2025 |
| I-Steel Ab Oy Ltd | Manufacturing | 1989 |
| Iineko Oy | Professional & scientific | 2020 |
| J&M Launokorpi Oy | Transport & logistics | 1979 |
| JH Stables Oy | Arts & recreation | 2015 |
| JJP-Service Oy Ab | Construction | 2007 |
| Jonika Ab | Wholesale & retail | 2001 |
| KGM-Invest Oy | Financial services | 2024 |
| Kaivonporaus Dahlbom Oy - Dahlboms Brunnsborrning Ab | Construction | 2014 |
| Kallonen Motion Oy | Wholesale & retail | 2026 |
| KarellCo Oy | Construction | 2026 |
| Karlssons Bil Oy | Wholesale & retail | 1986 |
| Kasandra Garden center Ab | Wholesale & retail | 2013 |
| Kemiön Kukkapalvelu Tiarella Ky | Wholesale & retail | 2006 |
| Kemiönsaaren Kiinteistöt Oy | Real estate | 2026 |
| Kemiönsaaren Venehuolto Oy | Manufacturing | 2016 |
| Kiinteistö Oy Wuoriokuja | Real estate | 2021 |
| Kimito Bagare Ab - Kemiön Leipurit Oy | Manufacturing | 1984 |
| Kimito Brewing AB | Manufacturing | 2015 |
| Kimito Flis Ab | Financial services | 1988 |
| Kimito Färg & Biltillbehör Ab | Wholesale & retail | 1964 |
| Kimito Linjebil - Taxistation öppet bolag | Transport & logistics | 1955 |
| Kimito Sotning Ab - Kemiön Nuohous Oy | Administrative & support | 2009 |
| Kimito Telefonaktiebolag | Information & communication | 1902 |
| Kimito Trafikcentrum Ab | Real estate | 1999 |
| Kimitoöns Aktivitetscenter Ab Oy | Arts & recreation | 2022 |
| Kimitoöns Värme Ab | Energy | 1985 |
| Kiviniemi Service Oy | Professional & scientific | 2019 |
| Koffset Ab Oy | Professional & scientific | 2013 |
| Koivula Partners Oy Ab | Professional & scientific | 2008 |
| Koneistokehitys Oy | Manufacturing | 1990 |
| Koti Kumppanit Oy | Health & social care | 2011 |
| Kuitunen Consulting Oy | Professional & scientific | 2015 |
| Kylmäsähkö Hiutale Oy | Professional & scientific | 2023 |
| LKA Global Oy | Education | 2025 |
| Laineputki Oy | Construction | 1990 |
| Leif Funck Ab | Transport & logistics | 2001 |
| Lillgården Ab | Education | 2017 |
| Limera Ab Oy | Hospitality | 1984 |