| Aapon metsuri- ja pihapuupalvelu Oy | Agriculture & fishing | 2020 |
| Amenité Oy | Transport & logistics | 2005 |
| EKZ Holding Oy | Financial services | 2023 |
| HT-asunnot Oy | Real estate | 2021 |
| Harjavallan Teollisuuspuhdistus Oy | Manufacturing | 2023 |
| JJ-Profit Oy | Real estate | 1994 |
| Janune Oy | Real estate | 2000 |
| Kalustesorvaus Ramberg Oy | Manufacturing | 1989 |
| Kiinteistö Oy Hitsivahe 1 | Real estate | 2008 |
| Kiinteistö Oy Huntvooder | Real estate | 2005 |
| Kiinteistö Oy Kyärintie 8 | Real estate | 1971 |
| Kiinteistö Oy Metsäsusi | Real estate | 2010 |
| Kiinteistö Oy Sinisuora | Real estate | 1974 |
| Koillisväylän Kiinteistö Oy | Real estate | 2007 |
| Kollan Kiinteistöt Oy | Real estate | 2026 |
| Kollan Rakennusmaalaus Ky | Construction | 2008 |
| Kollan teräsrakenne Oy | Manufacturing | 1973 |
| KollanPojat Oy | Wholesale & retail | 1986 |
| Kotikallio Oy LKV | Real estate | 2008 |
| Kuljetus Jaakko Oksanen Oy | Transport & logistics | 1998 |
| Kuusikkomaa oy | Construction | 2025 |
| Kylmäkorpi Oy | Professional & scientific | 2022 |
| Lapinrauma Oy | Real estate | 2020 |
| M.Keskilä Oy | Other services | 2018 |
| NPP-palvelut Oy | Professional & scientific | 2012 |
| Osuuskunta MoniKolla | Professional & scientific | 2000 |
| PELTI- ja RAKENNUSTYÖ VIRTANEN OY | Construction | 2013 |
| Pope Oy | Construction | 2008 |
| PuuKolla Oy | Wholesale & retail | 2008 |
| RS-Sijoitus Oy | Real estate | 2019 |
| RS-Soodapuhallus Oy | Manufacturing | 2011 |
| Rakennus Talosaari Oy | Construction | 2017 |
| Rakennustyöt T.Kaukkila Oy | Construction | 2011 |
| Rauman RS-Rakennus Oy | Construction | 1995 |
| Rauman RT - Kiinteistöt Oy | Real estate | 1990 |
| Rauman Ro-So Oy | Real estate | 1955 |
| Rauman Vuokra-asunnot Oy | Real estate | 2019 |
| Revontuli Kieliakatemia Ky | Education | 2017 |
| Sa-jarix Oy | Wholesale & retail | 2006 |
| Sijaishuoltopalvelut Taika Oy | Health & social care | 2012 |
| Sisukallio Oy | Real estate | 1998 |
| SuperFix Company Oy | Administrative & support | 2015 |
| Swerte Oy | Transport & logistics | 2023 |
| Swerte Studio Oy | Information & communication | 2024 |
| Sähköasennus J. Hämäläinen Oy | Construction | 2019 |
| Team FinnKaNe Oy | Administrative & support | 2010 |