Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Jan Weischer | Angel | 2 | 2 | Transportation | 2021–2022 |
| Jane Street Capital | Venture capital | 2 | 2 | Healthtech | 2022 |
| Jane Walerud | — | 2 | 2 | Wellness & Beauty | 2018 |
| Janngo.africa | Venture capital | 2 | 2 | Fintech | 2025 |
| Janus Friis | — | 2 | 1 | Robotics | 2014–2015 |
| Jared Smith | — | 2 | 2 | Software | 2020–2024 |
| Jarno Vanhatapio | Angel | 2 | 2 | E-commerce | 2021 |
| Jason Warner | Angel | 2 | 2 | Software | 2021 |
| Javier Darriba | Angel | 2 | 2 | Proptech | 2024–2025 |
| Javier Fondevila | Angel | 2 | 2 | Fintech | 2022 |
| Javier Llorente | — | 2 | 2 | Software | 2017–2021 |
| Javier López Costa | Angel | 2 | 2 | Edtech | 2021–2024 |
| Javier Martín Chocarro | — | 2 | 2 | — | — |
| Javier Oliván | Angel | 2 | 2 | E-commerce | 2021 |
| Javier Rodríguez Zapatero | — | 2 | 2 | Media | 2018–2022 |
| Javier Suarez | Angel | 2 | 2 | Healthtech | 2022 |
| Jawed Karim | — | 2 | 2 | Software | 2009–2026 |
| Jay Parker | Angel | 2 | 1 | Foodtech | 2025–2026 |
| Jay Radia | Angel | 2 | 2 | HRtech | 2021–2023 |
| Jay Simons | — | 2 | 2 | Software | 2020–2022 |
| Jazz Pharmaceuticals | — | 2 | 1 | Healthtech | 2019–2021 |
| JCDecaux Holding | — | 2 | 2 | AI | 2017–2023 |
| JDRF T1D Fund | Investment firm | 2 | 2 | Healthtech | 2017–2023 |
| Jean-Baptiste Aviat | Angel | 2 | 2 | AI | 2022–2023 |
| Jean-Baptiste Hironde | Angel | 2 | 2 | Consumer | 2022–2024 |
