Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Bill Gates | — | 3 | 3 | Cleantech | 2017–2021 |
| BioInnovation Institute Foundation (BII) | Venture capital | 3 | 3 | Healthtech | 2021–2024 |
| Biopôle Start-up Fund | Venture capital | 3 | 3 | Healthtech | 2022 |
| Bioqube Ventures | Venture capital | 3 | 3 | Healthtech | 2022–2023 |
| Bios Line Holding | Corporate | 3 | 2 | E-commerce | 2021–2025 |
| Bitfury | — | 3 | 2 | Semiconductors | 2017–2026 |
| BITKRAFT Esports Ventures | Venture capital | 3 | 3 | Media | 2019 |
| Bjarke Klinge Staun | Angel | 3 | 3 | Fintech | 2022–2025 |
| Black Ocean | Investment firm | 3 | 3 | Software | 2012–2013 |
| Blackhorn Ventures | Venture capital | 3 | 2 | Energy | 2022–2023 |
| Blackstone Growth | — | 3 | 3 | Fintech | 2021–2026 |
| Blizzard Fund | Venture capital | 3 | 3 | Gaming | 2022–2024 |
| Blockchain Valley Ventures | Venture capital | 3 | 3 | Software | 2018–2022 |
| Blockrocket | Venture capital | 3 | 3 | Fintech | 2021–2022 |
| Bloomberg Beta | — | 3 | 3 | Software | 2017–2021 |
| Blue Bay Ventures | Venture capital | 3 | 3 | Fintech | 2024–2025 |
| Blue Impact Ventures | Venture capital | 3 | 3 | Foodtech | 2021–2022 |
| Blue Lake | Venture capital | 3 | 3 | Software | 2023–2025 |
| blueworld.group | Venture capital | 3 | 2 | Cleantech | 2022–2024 |
| Blum Ventures | Venture capital | 3 | 3 | Cleantech | 2025–2026 |
| BNF Capital | Venture capital | 3 | 3 | Wellness & Beauty | 2020–2025 |
| BNP Paribas Development | Venture capital | 3 | 3 | Healthtech | 2022–2024 |
| Bob van Luijt | Angel | 3 | 3 | Software | 2024 |
| Boeing HorizonX Ventures | Venture capital | 3 | 3 | Robotics | 2018–2021 |
| Bonheur | Venture capital | 3 | 2 | Energy | 2022–2024 |
