| Oy Fiskarsin Rakennustoimisto - Fiskars Byggnadsbyrå Ab | Construction | 1994 |
| Oy Fomax Ab | Professional & scientific | 2012 |
| Oy Gebbelby Malm Ab | Mining & quarrying | 1981 |
| Oy HKL Kontorsfastigheter Ab | Real estate | 1998 |
| Oy Inwek Ab | Construction | 2010 |
| Oy Itar Ab | Agriculture & fishing | 1994 |
| Oy J & R Lindholm Ab | Transport & logistics | 1997 |
| Oy Karjaan Puupörssi-Karis Träbörs Ab | Wholesale & retail | 1992 |
| Oy Landbo Ab | Manufacturing | 1990 |
| Oy Magnus Svennblad Ab | Professional & scientific | 1997 |
| Oy N Ahlblad Ab | Real estate | 2002 |
| Oy Osaksal Ab | Professional & scientific | 1985 |
| Oy Pekka Pohjolainen | Financial services | 1995 |
| Oy Rajalin Ab | Transport & logistics | 1956 |
| Oy Riitta Portman Ab | Wholesale & retail | 1987 |
| Oy Sisu Ab | Manufacturing | 1999 |
| Oy Sisu Auto Ab | Wholesale & retail | 2002 |
| Oy Spectacolor Gabriel's Ab | Other services | 1995 |
| Oy Stoneacre Ab | Information & communication | 2011 |
| Oy Sähköurakointiliike L & L Team Ab | Construction | 1989 |
| Oy Transport Sjöman Ab | Transport & logistics | 1992 |
| Oy VVS-Service Lundström Ab | Construction | 2009 |
| Oy West Glass Service Ab | Manufacturing | 2007 |
| Oy Wike Ab Agentur | Wholesale & retail | 1986 |
| Oy Wikman Invest Ab | Professional & scientific | 1987 |
| Oy XLT-Systems Ab | Wholesale & retail | 1990 |
| Oy Zimzon's Ab | Construction | 1994 |
| PNC Holding Ab | Financial services | 2025 |
| PNC Service Oy Ab | Real estate | 2010 |
| POTIS & MOROT CAPITAL MANAGEMENT Ab | Real estate | 2022 |
| PRA Group Oy | Information & communication | 2009 |
| PRA-Kiinteistöt Oy | Real estate | 1996 |
| Padel Property Oy Ab | Arts & recreation | 2021 |
| Parkentur Oy | Wholesale & retail | 2013 |
| Per Grönroos Oy Ab | Construction | 2007 |
| Perheyhtiö R. Ajalin Oy | Administrative & support | 1986 |
| Peter Blomster Oy | Information & communication | 1992 |
| Petikon Kuljetus Oy | Transport & logistics | 2013 |
| Pizzeria Darin Ky | Hospitality | 1992 |
| Planet B Oy | Professional & scientific | 2022 |
| Pohjan LVI-ja Rautarakenne palvelu Oy | Construction | 1988 |
| Pohjankurun Telakka Oy | Real estate | 2002 |
| Posidentia Oy Ab | Financial services | 2002 |
| Positive Plastics Oy | Professional & scientific | 2021 |
| Practicon Partners Oy | Financial services | 1986 |
| Prediumin Aluehuolto Oy | Administrative & support | 1985 |
| Prokures Oy | Professional & scientific | 2017 |
| Psykologipalvelu Hagström Oy | Health & social care | 2025 |
| Puhtoren Oy | Administrative & support | 2024 |
| PumppuTEK Oy | Manufacturing | 2005 |
| QlashBit Oy | Information & communication | 2022 |
| R & J Fixers Oy | Other services | 2020 |
| Raseborgs Bygg AB | Construction | 2007 |
| Rentfinland OY | Real estate | 2007 |
| RR Management Oy | Real estate | 2005 |
| Raaseporin Hoivakoti Oy | Health & social care | 2007 |
| Raaseporin Hunaja Oy | Agriculture & fishing | 2020 |
| Raaseporin LVI-Huolto Oy | Wholesale & retail | 1992 |
| Raaseporin Sähköpalvelu Oy | Construction | 2019 |
| Raaseporin Vuokra-asunnot Oy - Raseborgs Hyresbostäder Ab | Real estate | 1981 |
| Raaski Oy | Real estate | 2019 |
| Rajalin Consilium Aktiebolag | Professional & scientific | 2014 |
| Rakennettu Omaisuus Oy | Real estate | 2024 |
| Rakennus ja Saneeraus Kiviniemi Oy | Construction | 2007 |
| RakennusInnova Oy | Construction | 2024 |
| Rakennusliike Hannu Laitinen Ky | Construction | 1992 |
| Ralf Jung Ab | Construction | 2000 |
| Ranic Oy | Construction | 2005 |
| Raseborg Express Ab | Transport & logistics | 1983 |
| Raseborg Invest Oy Ab | Real estate | 2021 |
| Raseborg Marine Service Ab Oy | Manufacturing | 2019 |
| Raseborgs Bygghjälp Oy Ab | Construction | 2016 |
| Raseborgs Ishall Ab Oy | Arts & recreation | 2011 |
| Raseborgs Stadsnät Ab | Information & communication | 2000 |
| Raseborgs Veterinär Ab - Raaseporin Eläinlääkäri Oy | Professional & scientific | 1995 |
| Rasmet Koneistus Oy Ab | Manufacturing | 2020 |
| Rastronics Oy Ab | Professional & scientific | 2015 |
| Ravinneverkko Oy | Wholesale & retail | 2024 |
| Revohka Oy | Arts & recreation | 2013 |
| Rinatec Oy | Professional & scientific | 1992 |
| RiverPoint Oy | Information & communication | 2022 |
| Rjs Invest Oy | Financial services | 2011 |
| Roberts LKV Oy | Real estate | 2024 |
| Robertz Partners Ab | Professional & scientific | 2025 |
| Ronja Events Oy | Information & communication | 2025 |
| Roth Finland Oy | Wholesale & retail | 2008 |
| Rubin Medical Oy | Wholesale & retail | 2019 |
| S. Sjöbloms Elektriska Kb | Construction | 1986 |
| Starrböle Skogsköket AB | Hospitality | 2026 |
| Swe Consulting OY AB | Transport & logistics | 2018 |
| Safepify Oy | Information & communication | 2026 |
| Salong Wellness Ab | Other services | 2021 |
| Sanrak Oy | Construction | 2018 |
| Savuaitta Oy | Manufacturing | 2008 |
| Scandinavian Fashion Agency Oy Ab | Wholesale & retail | 2024 |
| SebMek Oy | Professional & scientific | 2025 |
| Seela Sijaishuolto Oy | Health & social care | 2021 |
| Selcast Oy | Manufacturing | 1989 |
| Selvo Oy | Administrative & support | 2026 |
| Sendero Oy | Professional & scientific | 2015 |