| 1292 Sanna Kumpumäki Oy | Wholesale & retail | 2014 |
| A. Berglund Ab | Construction | 1990 |
| A. V. X-akt Ab | Financial services | 2011 |
| AB Ekenäs TV | Information & communication | 1983 |
| AB Ekenäshallen | Arts & recreation | 1997 |
| AIKA Arkkitehdit Oy | Professional & scientific | 2014 |
| AKAB Ab | Construction | 2024 |
| ALTH Oy | Construction | 2022 |
| Arnis Deli OY AB | Hospitality | 2021 |
| ATEH Ab | Professional & scientific | 2024 |
| Ab Active House Oy | Real estate | 2018 |
| Ab Active Sport Club Oy | Arts & recreation | 2010 |
| Ab Alba i Ekenäs | Hospitality | 2009 |
| Ab Auto-Center Horsbäck Oy | Other services | 2018 |
| Ab BF Byggservice - BF Rakennuspalvelu Oy | Construction | 2015 |
| Ab Beman Oy | Information & communication | 1988 |
| Ab Bio Forum Oy | Information & communication | 2020 |
| Ab Björkebo Oy | Real estate | 2009 |
| Ab Calorplan Oy | Professional & scientific | 2016 |
| Ab Delmatic Oy | Hospitality | 1991 |
| Ab EKTA Bygg-Rakennus Oy | Construction | 2019 |
| Ab EL-DEL Oy | Wholesale & retail | 2004 |
| Ab Eke Golf Oy | Arts & recreation | 2004 |
| Ab Ekenäs Bokföringsbyrå | Professional & scientific | 1974 |
| Ab Ekenäs Reklamcenter ERC-Company Oy | Professional & scientific | 1994 |
| Ab FEB Invest Oy | Real estate | 2008 |
| Ab Gustaf Wasa Group Oy | Health & social care | 2004 |
| Ab Horsbäck Bilservice Oy | Other services | 1996 |
| Ab Huldin & Co Oy | Transport & logistics | 1979 |
| Ab Invex Oy | Wholesale & retail | 2008 |
| Ab JL Ship Handling Oy | Education | 2011 |
| Ab Joy Valley Oy | Wholesale & retail | 2014 |
| Ab Kaoli Oy | Manufacturing | 2019 |
| Ab Kemiron Oy | Real estate | 2020 |
| Ab Kungsbokhandeln-Kuninkaan kirja Oy | Wholesale & retail | 1993 |
| Ab Lerohouse Oy | Real estate | 2005 |
| Ab MIW Oy | Arts & recreation | 2013 |
| Ab Max's Brunnsborrning Kaivonporaus Oy | Construction | 1990 |
| Ab Max's Energy Oy | Construction | 2007 |
| Ab Mia och Peters Invest Oy | Real estate | 1995 |
| Ab MyBromarv Oy | Professional & scientific | 2020 |
| Ab Nivident Oy | Health & social care | 2021 |
| Ab Nordan Oy | Professional & scientific | 1993 |
| Ab R. Guidplan Oy | Professional & scientific | 2014 |
| Ab Rizano Oy | Hospitality | 2017 |
| Ab Shiprest Lenator Oy | Hospitality | 1991 |
| Ab Sjölyckan Oy | Manufacturing | 2020 |
| Ab Söderäng Oy | Real estate | 2007 |
| Ab TKS-Trading Oy | Professional & scientific | 1993 |
| Ab Tork Tek Oy | Construction | 2007 |
| Ab Trädgårdsglädje - Puutarhanilo Oy | Administrative & support | 2010 |
| Ab Två i Trä - Kaksipuu Oy | Manufacturing | 1980 |
| Ab Västra Nylands Fastighetsförmedling - Länsi-Uudenmaan Kiinteistövälitys Oy | Real estate | 1993 |
| Ab Yrdal Oy | Financial services | 1992 |
| Adellum Oy Ab | Real estate | 2024 |
| Adhesive Advice Ltd Ab | Professional & scientific | 2011 |
| Advokatbyrå Sjöblom Ab | Professional & scientific | 2023 |
| AgriMare Oy | Agriculture & fishing | 2014 |
| Aikon Ky Varkaus | Wholesale & retail | 2001 |
| Aktiebolaget Ängholm | Agriculture & fishing | 1911 |
| Alexandrita Ky | Wholesale & retail | 2002 |
| Alpha Air Ab | Wholesale & retail | 2024 |
| Andelsbanken Raseborg | Financial services | 1926 |
| Andelslaget Life Spectrum Osuuskunta | Health & social care | 2015 |
| Andelslaget Optowest | Information & communication | 2011 |
| Andelslaget Sommarö Bastholms Vatten | Water & waste | 2019 |
| Andsjö Holdings Ab | Financial services | 2023 |
| Apprime Oy Ab | Construction | 2007 |
| Argo Powerboats Inc Oy | Manufacturing | 2024 |
| Aritzon Oy Ltd | Information & communication | 2019 |
| Arkdrufva Oy | Professional & scientific | 2001 |
| Ars Prima Oy | Arts & recreation | 1996 |
| Asundo Ab | Financial services | 2017 |
| Aveck Kb | Real estate | 2005 |
| Avexor Oy Ab | Professional & scientific | 2002 |
| Axman Ab Oy | Health & social care | 2011 |
| BHT-Consulting Oy | Professional & scientific | 1990 |
| BMA-Invest Ab | Real estate | 2010 |
| BVersity Ab | Professional & scientific | 2021 |
| Byggnads-Rakennus B.Gröning OY AB | Construction | 2018 |
| BaDaSa Invest Ab | Real estate | 2024 |
| Baggö Marina Ab Oy | Manufacturing | 2003 |
| BalanceCompass Oy | Professional & scientific | 2013 |
| Bar & Grill Ekenäs Ab | Hospitality | 2016 |
| Bedone Implemented Solutions Oy Ab | Professional & scientific | 2016 |
| Berghemma Hantverk Ab | Manufacturing | 1994 |
| Bergshyddan Oy | Real estate | 2011 |
| Bevara Finlands Skärgård Ab Oy | Agriculture & fishing | 2020 |
| Biceps Oy | Health & social care | 1998 |
| BisseNisse Ab | Hospitality | 2019 |
| Blue Berry Communications & IR Oy | Professional & scientific | 2013 |
| Blue Berry Share Oy | Information & communication | 2022 |
| Boint Oy | Wholesale & retail | 2005 |
| Bojaco Oy | Information & communication | 2015 |
| Bokföring H & N Kirjanpito Öppet Bolag | Professional & scientific | 2018 |
| Bokföringshjälpen Finland AB | Professional & scientific | 2026 |
| Bokföringstjänst J & M öppet bolag | Professional & scientific | 2016 |
| Brightmind Consulting Oy | Education | 2017 |
| Bröderna Österholms byggtjänst | Construction | 1989 |
| Bulky OY | Wholesale & retail | 2016 |