| 1591 Soile Kuivalainen Oy | Wholesale & retail | 2017 |
| AP Maalaus avoin yhtiö | Construction | 2001 |
| Alarin Oy | Construction | 2011 |
| Alutrailer OY | Manufacturing | 2017 |
| Animo Ratio Oy | Professional & scientific | 2018 |
| Arjen Marine Oy | Professional & scientific | 2026 |
| BC Works Oy Ab | Other services | 2021 |
| Björk Engineering Oy | Professional & scientific | 2023 |
| Boomeranger Boats Oy | Manufacturing | 1991 |
| Cargo Connexion Oy | Transport & logistics | 1993 |
| Collega Oy | Manufacturing | 1989 |
| DAR Rakennus Oy | Construction | 2019 |
| Finnboom OY | Construction | 2009 |
| Fantuzzi Finland Oy | Manufacturing | 2003 |
| FarmBioLine Oy | Wholesale & retail | 2001 |
| Foursomes Oy | Wholesale & retail | 2012 |
| GHWorks Oy | Wholesale & retail | 2020 |
| H&H Urakointi Oy | Construction | 2022 |
| HW Innovation Oy | Professional & scientific | 2025 |
| Handelsbolaget Altarskär Forell | Agriculture & fishing | 1985 |
| Handelsbolaget Juny-142 Oy | Agriculture & fishing | 1985 |
| Helsingin 1.2.3-Yhtiö Oy | Construction | 1995 |
| Hilmola-Yhtiöt Oy | Information & communication | 2002 |
| Hoods & Woods OY | Construction | 2019 |
| KVL Yrityspalvelu Oy | Real estate | 1989 |
| Kiinteistö Oy Porvoonkatu 9 | Real estate | 2002 |
| Kohu Media Oy Ltd | Information & communication | 2026 |
| Koneurakointi Kari Eriksson Oy | Construction | 2023 |
| Kovaste Oy | Wholesale & retail | 2010 |
| Kristina-Invest Oy | Financial services | 1988 |
| Ky Wasa Galleria Kb | Wholesale & retail | 1990 |
| Laatikkala Oy | Real estate | 1986 |
| Laudier Oy | Administrative & support | 2020 |
| Lemare Oy | Wholesale & retail | 1994 |
| Loviisa Rakennus&Kiinteistöpalvelu Oy | Construction | 2022 |
| Loviisan Sammutinhuolto Oy | Manufacturing | 2006 |
| Loviisan Satama Oy | Transport & logistics | 2016 |
| Loviisan Satamakiinteistöt Oy | Real estate | 2016 |
| Loviisan Siivouspalvelu Ky | Administrative & support | 1987 |
| Loviisan Sähkötyö Ky | Construction | 2018 |
| Loviisan Tieisännöinti Oy | Professional & scientific | 2022 |
| Loviisan konepuoti Oy | Wholesale & retail | 2025 |
| M-Yachts Oy Ab | Manufacturing | 2002 |
| Miksu Invest Oy | Administrative & support | 2020 |
| Minimetalli Oy | Wholesale & retail | 1981 |
| Mäkitalo Urakointi Oy | Construction | 2019 |
| NH Accounting Oy | Professional & scientific | 2024 |
| OLO Kiinteistöpalvelut Oy | Administrative & support | 2015 |
| One Link Oy | Financial services | 1998 |
| Optikko Jarmo Laine Oy | Wholesale & retail | 1987 |
| Ord & Verk Oy | Other services | 2016 |
| Osakeyhtiö Siltaset Development | Professional & scientific | 1995 |
| Oy Bästö Forell Ab | Wholesale & retail | 1984 |
| Oy Gremium Ab | Education | 1996 |
| Oy LVI O. Vuokkovaara Ab | Construction | 2004 |
| Oy Seamats Ab | Transport & logistics | 2023 |
| Oy Semilax Ab | Agriculture & fishing | 1989 |
| Oy Studio Lumo Ab | Professional & scientific | 1989 |
| Oy The Federations Stevedore in Lovisa Ab | Transport & logistics | 1914 |
| Oy Yachtcare Finland Ab | Manufacturing | 2019 |
| OÜ Inter-Meedia Group, sivuliike Suomessa | Information & communication | 2011 |
| Pivot Hospitality Oy | Hospitality | 2026 |
| Rahikkalan vesiosuuskunta | Water & waste | 2007 |
| RakLaine Oy | Construction | 2020 |
| Rakennus Kronvall Oy Ab | Construction | 2017 |
| Rika Oy | Administrative & support | 2024 |
| Rocks Port Oy | Manufacturing | 2024 |
| S.O Agency Oy | Wholesale & retail | 2026 |
| Sami Palanne Oy | Professional & scientific | 2006 |
| Select Energy Nordics Oy | Transport & logistics | 2023 |
| Snellmarine Holdings Oy Ltd | Financial services | 2026 |
| Snellmarine Oy | Transport & logistics | 2025 |
| Steel Import Finland Oy | Wholesale & retail | 2019 |
| Suomen Luomutukku Oy | Wholesale & retail | 2020 |
| Suomen Turbopalvelu Oy | Administrative & support | 2025 |
| Taitoviiva Ky Kärnä | Information & communication | 1980 |
| Teknovuo oy | Financial services | 1988 |
| Timberpoint Oy | Manufacturing | 2015 |
| Tukkumanni Oy | Wholesale & retail | 2026 |
| Unelvilla Oy | Professional & scientific | 2021 |
| VOM Suomi Oy | Wholesale & retail | 2022 |
| Valko Kartano Oy | Health & social care | 1989 |
| Valkon Grilli Avoin yhtiö | Hospitality | 2024 |
| Valkon Hoitokoti Oy | Health & social care | 1991 |
| Valkon Satamapalvelu Oy Valkom Hamnservice Ab | Transport & logistics | 1993 |
| Vauhti-Raksu Oy | Wholesale & retail | 2012 |
| Vektor Nova Oy | Transport & logistics | 1999 |
| WD Diner Oy | Hospitality | 2019 |
| WD Group Oy | Professional & scientific | 2025 |
| WD Steelworks Oy | Manufacturing | 2015 |