| Dynaplay Oy | Helsinki | 2003 |
| E & E Fundaments Oy | Espoo | 2021 |
| E Corp Oy | Oulu | 2020 |
| E&S Capital Oy | Nokia | 2025 |
| E&V Heimonen Oy | Hiltulanlahti | 2021 |
| E&V Sales Oy | Kuopio | 2025 |
| E-AS Holding Oy | Helsinki | 2012 |
| E-Boys invest Oy | Helsinki | 2015 |
| E-Capital Oy | Helsinki | 2000 |
| E-Holding 2013 Oy | Espoo | 2020 |
| E-L Wäre Holding | Helsinki | 2023 |
| E. Hatakka Oy | Puumala | 2009 |
| E. Kuhmonen Oy | Jyväskylä | 2007 |
| E. Kurki Holding Oy | Hämeenlinna | 2026 |
| E. Porramo Oy | Tampere | 1944 |
| E. Vuola Oy | Helsinki | 1940 |
| E. ja H. Hyvönen Oy | Helsinki | 1975 |
| E.I. Nordman Holding Ab | Espoo | 1996 |
| E.L.L. Fortune Oy | Hämeenlinna | 2024 |
| E.Maikku Oy | Oulu | 2021 |
| E.Marttila Oy | Turku | 2019 |
| E.P Insurance Oy | Turku | 2024 |
| E.Palomaa Oy | Oulu | 2024 |
| E/H Consulting Oy | Kuusisto | 2020 |
| E1 Capital Oy | Kuopio | 2021 |
| E1 Holding Oy | Pirkkala | 2018 |
| E2 Capital Oy | Helsinki | 2023 |
| E2 Holding Oy | Espoo | 2024 |
| E3 Capital Oy | Kauniainen | 2026 |
| E8E Oy | Helsinki | 2026 |
| EA Capital Oy | Helsinki | 2013 |
| EA1 Holding Oy | Turku | 2022 |
| EAB Credit Fund I GP Oy | Helsinki | 2019 |
| EAB Credit Fund I Ky | Helsinki | 2019 |
| EAB Porin Asuntorahasto Ky | Helsinki | 2010 |
| EAB Private Equity Oy | Helsinki | 2021 |
| EAB Pääomarahastot I GP Oy | Helsinki | 2019 |
| EAB Pääomarahastot I Ky | Helsinki | 2019 |
| EAB RE Infra II GP Oy | Helsinki | 2020 |
| EAB REIF II HoldCo I Oy | Helsinki | 2021 |
| EAB Renewable Energy Infrastructure Fund II Feeder I Ky | Helsinki | 2021 |
| EAB Renewable Energy Infrastructure Fund II Feeder III Ky | Helsinki | 2021 |
| EAB Renewable Energy Infrastructure Fund II Feeder IV Ky | Helsinki | 2021 |
| EAB Renewable Energy Infrastructure Fund II Feeder IX Ky | Helsinki | 2023 |
| EAB Renewable Energy Infrastructure Fund II Feeder VI Ky | Helsinki | 2022 |
| EAB Renewable Energy Infrastructure Fund II Feeder VIII Ky | Helsinki | 2022 |
| EAB Renewable Energy Infrastructure TeamCo Oy | Helsinki | 2021 |
| EAB Value Added Fund III Feeder I Ky | Helsinki | 2021 |
| EAB Value Added Fund III Ky | Helsinki | 2021 |
| EAB Value Added Fund III SR II Ky | Helsinki | 2021 |
| EAB Value Added Fund III SR III Ky | Helsinki | 2021 |
| EAB Value Added Fund III SR IV Ky | Helsinki | 2022 |
| EAH Holding Oy | Kirkkonummi | 2026 |
| EAI Feeder GP Oy | Helsinki | 2017 |
| EAI Hedging 2 Oy | Helsinki | 2022 |
| EAI Hedging 3 Oy | Helsinki | 2022 |
| EAI Hedging 4 Oy | Helsinki | 2022 |
| EAI KREATE Holding Oy | Helsinki | 2022 |
| EAI PON1V Holding Oy | Helsinki | 2022 |
| EAI Private Equity Feeder I Ky | Helsinki | 2017 |
| EAI Raute Holding Oy | Helsinki | 2022 |
| EAI Residential Feeder Fund II Ky | Helsinki | 2016 |
| EAI Residential Feeder Fund III Ky | Helsinki | 2018 |
| EAI Residential Feeder Fund IV Ky | Helsinki | 2019 |
| EAI Residential I Ky | Helsinki | 2015 |
| EAI Residential Partners Oy | Helsinki | 2015 |
| EAJ Holding Oy | Helsinki | 2025 |
| EAM CONSTI Holding Oy | Helsinki | 2017 |
| EAM DIGIA Holding Oy | Helsinki | 2018 |
| EAM EXL1V Holding Oy | Helsinki | 2017 |
| EAM NRE1V Holding Oy | Helsinki | 2017 |
| EAM QTCOM Holding Oy | Helsinki | 2019 |
| EAM TTALO Holding Oy | Helsinki | 2017 |
| EATA Oy | Lappeenranta | 2024 |
| EB Ventures Ab | Helsinki | 2023 |
| EBR Holding Ab | Mariehamn | 2024 |
| EC Capital Oy | Helsinki | 2019 |
| EC Niggl Oy | Espoo | 1997 |
| ECF Capital Group Oy | Kangasala | 2025 |
| ECIT F&A Holding Finland Oy | Jyväskylä | 2025 |
| ECO-Innovation and Sustainability Management Oy | Helsinki | 1975 |
| EDE Capital Ab | Helsinki | 2021 |
| EE Holding Oy | Oulu | 2022 |
| EE-Trading Oy | Halikko | 2026 |
| EEF Capital Oy | Espoo | 2018 |
| EEKO Holding Oy | Helsinki | 2019 |
| EEKS-Palvelut Oy | Kormu | 2016 |
| Eelicom OY | Tammisaari | 2009 |
| EEM-investment Oy | Espoo | 2022 |
| EES Investment Oy | Espoo | 2025 |
| EESAM Holding Oy Ab | Helsinki | 2016 |
| EET&A Oy | Ylöpirtti | 2023 |
| EF Capital Oy | Helsinki | 2020 |
| EF Holding Oy | Inkoo | 2015 |
| EF Tech Ab | Pietarsaari | 1978 |
| EF-Finland Oy | Porvoo | 1998 |
| EFS Capital Oy | Degerby | 2021 |
| EFVAF II GP Oy | Helsinki | 2018 |
| EFVAF III GP Oy | Helsinki | 2021 |
| EFVAF IV GP Oy | Helsinki | 2025 |