| EA-Technica Oy | Education | 2016 |
| EK Kattokeskus Oy | Construction | 2019 |
| EK-Services Oy | Information & communication | 2010 |
| EMH Holding Oy | Financial services | 2026 |
| EMM's Wellness Oy | Professional & scientific | 1994 |
| EP Valmennus Oy | Education | 2025 |
| ES-Asunnot Oy | Real estate | 2015 |
| ES-Isännöinti Oy | Real estate | 2011 |
| ES-Laatuasumisoikeus Oy | Real estate | 1997 |
| ES-Laatuasunnot Oy | Real estate | 1996 |
| ES-Laatukodit Oy | Real estate | 2007 |
| ES-Yhtiöt Oy | Real estate | 2021 |
| EUSL FI Oy | Financial services | 2026 |
| EZ Food OY LTD | Hospitality | 2019 |
| Easmar Kiinteistöt OY | Real estate | 2004 |
| Easmar Logistics Oy | Transport & logistics | 2004 |
| Easy Padel Oy | Arts & recreation | 2021 |
| EduKo koulutus- ja yrityspalvelut Oy | Education | 2016 |
| Edustusliike Loponen Oy | Wholesale & retail | 2019 |
| Eerolan Rahti Oy | Transport & logistics | 2008 |
| Eila Teittinen Ky | Other services | 1983 |
| Eisenstein Oy | Hospitality | 2024 |
| Ekolämpönen Oy | Construction | 2007 |
| Eksan Monipalvelu Ky | Hospitality | 1987 |
| El indomable oy | Hospitality | 2026 |
| Electric Hallinta Oy | Professional & scientific | 2000 |
| Elementit-E Oy | Construction | 1997 |
| Elinan Elementit Oy | Real estate | 2001 |
| Elise Mettälä Oy | Real estate | 1989 |
| Eläinklinikka Huiske Oy | Professional & scientific | 2026 |
| ElämysBunkkeri Oy | Administrative & support | 2026 |
| Emerson TEN Finland Oy | Wholesale & retail | 2013 |
| Energiakaivuu Pekka Lassi Oy | Construction | 2010 |
| Enerkem Oy | Manufacturing | 2012 |
| Erane Ky | Administrative & support | 2019 |
| Errare Ky | Wholesale & retail | 1999 |
| Esa Laihanen Ky | Professional & scientific | 2016 |
| Eskolanmäen Kiinteistöpalvelut Oy | Administrative & support | 1972 |
| Eskolanmäen Palvelutalot Oy | Real estate | 1976 |
| Esmitek Oy | Professional & scientific | 2016 |
| Etelä-Suomen Lisäturva Oy | Administrative & support | 1996 |
| Etelä-Suomen Vartiointi Oy | Other services | 2020 |
| Eurotilat Oy | Real estate | 2006 |
| Eva Ennit Oy | Professional & scientific | 1987 |
| Evoplan Oy | Professional & scientific | 1990 |
| Expertparts Oy | Other services | 1994 |
| ExterGym Oy | Education | 2026 |
| Exuberancia Oy | Health & social care | 2018 |
| F-CoRa Ky | Construction | 2005 |
| FAB Holding Oy | Professional & scientific | 2025 |
| Fi Pluslogistic OY | Transport & logistics | 2007 |
| FINiDEAL oy | Administrative & support | 2014 |
| Fitseven OY | Arts & recreation | 2007 |
| Feedstock Optimum Oy | Professional & scientific | 2010 |
| Feni Oy (Find energy next innovation Oy) | Wholesale & retail | 2018 |
| Fennomarin Oy | Construction | 1994 |
| Fight Club Kouvola Oy | Arts & recreation | 2011 |
| Fimator Oy | Professional & scientific | 2005 |
| Fin System Loikala Oy | Manufacturing | 2005 |
| FinKina Sports Oy | Education | 2024 |
| Final Countdown Oy | Professional & scientific | 2021 |
| Finek Oy | Real estate | 1998 |
| Finland Education and Adolescent Development Centre (FEAD) Limited | Administrative & support | 2025 |
| Finn Installpipe Oy | Construction | 2002 |
| FinnKraft Consultant Oy | Professional & scientific | 2026 |
| Finnish Food Factory Oy | Manufacturing | 2018 |
| FirmaRec Oy | Professional & scientific | 2021 |
| FirmanAsunnot Oy | Real estate | 2022 |
| Fit Freak Oy | Arts & recreation | 2014 |
| Flamo Oy | Professional & scientific | 2007 |
| FlowSet Oy | Wholesale & retail | 2020 |
| Flowerbox Finland avoin yhtiö | Wholesale & retail | 2018 |
| Flying Lynx Oy | Wholesale & retail | 2015 |
| Foto Monza Oy | Wholesale & retail | 2019 |
| Fraidei Oy | Wholesale & retail | 2011 |
| Frequency639 Oy | Arts & recreation | 2023 |
| Fuerza Oy | Real estate | 2020 |
| Full Frame Works Oy | Professional & scientific | 2025 |
| FunWellness Oy | Education | 2018 |
| FunelWebServices Oy | Wholesale & retail | 2025 |
| Funktionelli Oy | Education | 2017 |
| Futurance Ky | Financial services | 2019 |
| Fysio Nordic Health Oy | Health & social care | 2025 |
| FysioNakari Oy | Health & social care | 2026 |
| Fysioterapia Tommi Heinonen Ky | Education | 2004 |
| Fysioterapiakotikäynnit Ky Sirpa Lukander | Health & social care | 2015 |
| Förvaltningsbolaget M. Pousette Ab | Financial services | 1995 |
| GALEFORS ELITE Oy | Construction | 2020 |
| GB-Turva Oy | Administrative & support | 2015 |
| GC Guaranty Cranes Oy | Professional & scientific | 2004 |
| Gomos OY | Manufacturing | 2017 |
| GOUMA Oy | Wholesale & retail | 2023 |
| GRLOG Chusikhwesa Green Logistics, Suomen sivuliike | Transport & logistics | 2002 |
| GedaFix Oy | Other services | 2014 |
| Gene-Works Oy | Construction | 2008 |
| GeoIDT Oy | Information & communication | 2026 |
| Giggle Oy | Professional & scientific | 2010 |
| GoSwift Suomi Oy | Information & communication | 2014 |
| Gracie Barra Finland Oy | Arts & recreation | 2023 |
| Green Legend Oy | Wholesale & retail | 1998 |