| Eternal Audio Oy | Wholesale & retail | 2025 |
| Eurotapio Oy | Administrative & support | 2003 |
| Eva & Anders Ab | Wholesale & retail | 1998 |
| Evas Tyg Ab | Wholesale & retail | 2013 |
| Event Planner Finland Oy | Administrative & support | 2010 |
| Everyday essentials oy | Professional & scientific | 2018 |
| Excite Ab | Other services | 2016 |
| Exethor Oy | Construction | 2013 |
| FCBR Strategy Ab | Professional & scientific | 2014 |
| FIKO Ab | Professional & scientific | 2022 |
| FIXEN Ab | Construction | 2026 |
| FLX-Module Oy | Manufacturing | 2025 |
| FRI - TEC Oy | Administrative & support | 2016 |
| FTS Rakennus Oy | Construction | 2019 |
| FV Fotovisio Oy | Transport & logistics | 1989 |
| FWBC Finland Oy | Health & social care | 2003 |
| Fyren Raseborg OY AB | Hospitality | 2025 |
| Fastighets Ab Artzén | Real estate | 1984 |
| Fastighets Ab Bageriet | Real estate | 2014 |
| Fastighets Ab Baggö Källstrand | Real estate | 2010 |
| Fastighets Ab Ekenäs Bankhus | Real estate | 1989 |
| Fastighets Ab Ekenäs Kungsgatan 4 | Real estate | 1957 |
| Fastighets Ab Ekenäs Strand | Real estate | 1990 |
| Fastighets Ab Ekenäs Trollbergsvägen 14 | Real estate | 1992 |
| Fastighets Ab Ekenäs-Fix | Real estate | 1991 |
| Fastighets Ab Ekmarken | Real estate | 1971 |
| Fastighets Ab Glasgränd | Real estate | 1990 |
| Fastighets Ab Gustaf Wasas gata 5 | Real estate | 2002 |
| Fastighets Ab Hantverkaregatan 2 | Real estate | 2003 |
| Fastighets Ab Julöklovan | Real estate | 1992 |
| Fastighets Ab Jägarbacken Kiinteistö Oy | Real estate | 1966 |
| Fastighets Ab Kagro | Real estate | 2005 |
| Fastighets Ab Karis Månskäran | Real estate | 1990 |
| Fastighets Ab Lillspatten | Real estate | 1990 |
| Fastighets Ab Malmhästen | Real estate | 1999 |
| Fastighets Ab Raseborg Mästarvägen 9 | Real estate | 2015 |
| Fastighets Ab Tallebo | Real estate | 1998 |
| Fastighets Ab Trollbergsvägen 19 | Real estate | 1988 |
| Fastighets Ab Vestanby | Real estate | 1997 |
| Fastighets Ab kustregionens utbildningsfastigheter | Real estate | 2008 |
| Fastighetsaktiebolaget Alkärret | Real estate | 1977 |
| Fastighetsaktiebolaget Forman | Real estate | 2003 |
| Fastighetsaktiebolaget Kronan i Ekenäs | Real estate | 2020 |
| Fastighetsaktiebolaget Prästgården i Ekenäs | Real estate | 2021 |
| Fastighetsaktiebolaget Ulfsberg | Real estate | 1965 |
| Fastighetsservice Ab Schönberg | Administrative & support | 2012 |
| Fastighetsservice Aureus Oy Ab | Administrative & support | 1994 |
| Fastighetsservice K. Sjöberg Kb | Administrative & support | 1989 |
| Floating Spa Ekenäs Ab | Other services | 2022 |
| Fokusal Ab | Health & social care | 2022 |
| Forest Service Fagerholm Oy Ab | Administrative & support | 1989 |
| Freja Invest Ab | Information & communication | 2008 |
| Fun Brokers Oy | Arts & recreation | 2023 |
| GG Consilium Ab | Hospitality | 2024 |
| Gabrielsson Invest Ab Oy | Agriculture & fishing | 2022 |
| Gamla Hagahemmet Ab Oy | Real estate | 2024 |
| Geberit Production Oy | Manufacturing | 2005 |
| Geberit Service Oy | Administrative & support | 2014 |
| Gestor Oy Ab | Financial services | 2017 |
| Get Better Ab | Education | 2026 |
| Glick Ab | Financial services | 2014 |
| GooGaBU Oy | Professional & scientific | 2017 |
| Gousteau Oy | Information & communication | 2020 |
| Grabbe Solutions Oy | Real estate | 2023 |
| Gropen Ab | Construction | 2022 |
| Gropvatten anl | Water & waste | 2023 |
| Hekra OY AB | Construction | 2010 |
| HG Invest Oy Ab | Financial services | 1991 |
| Hallon Ab Oy | Wholesale & retail | 2017 |
| Halstö Stugby Ab | Hospitality | 1984 |
| Hammaskolo Oy Ab | Health & social care | 2023 |
| Hannula Business Engineering Oy | Professional & scientific | 2002 |
| Helso Oy | Wholesale & retail | 1999 |
| Hemstället AFM Oy Ab | Real estate | 2021 |
| Herkkupata Oy | Financial services | 2013 |
| Hitsrak Oy | Manufacturing | 2016 |
| Holmlund Investment Oy | Professional & scientific | 2020 |
| Holms marine & granit Ab Oy | Other services | 2021 |
| Holmströmin Kiinteistöhuolto Oy Ab | Administrative & support | 1994 |
| Hydroforest Ab Oy | Wholesale & retail | 2000 |
| Håkan & Marie-Louise Björklund Oy/Ab | Other services | 2021 |
| Högbacka måleri Ab | Construction | 2023 |
| IBF Design Ab | Professional & scientific | 2014 |
| Imf AB | Information & communication | 2022 |
| IS-Automaalaus Oy | Other services | 2010 |
| IV Services Oy | Hospitality | 2026 |
| Icon Restaurants Oy | Hospitality | 2012 |
| Icon Works Ab Oy | Education | 2010 |
| Iloisia Asioita Oy | Wholesale & retail | 2021 |
| Imported Lifestyle Kb | Wholesale & retail | 2010 |
| IndoorAid Oy | Professional & scientific | 2018 |
| Ingman Marketing Oy Ab | Wholesale & retail | 1995 |
| Instead Oy | Health & social care | 1988 |
| Intous Oy | Arts & recreation | 2021 |
| InvestorCaller Ab | Information & communication | 2024 |
| Irek AB | Wholesale & retail | 2015 |
| J.A Sotning / Nuohous Oy | Administrative & support | 2020 |
| JAG Marine Oy | Manufacturing | 2014 |
| JD Truck & Trailer Service Oy | Transport & logistics | 1992 |
| JG Kross Ab | Construction | 2008 |