Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Nova Founders Capital | Investment firm | 4 | 4 | Fintech | 2015–2016 |
| Novalis Biotech | Venture capital | 4 | 3 | Healthtech | 2022–2026 |
| Novax | — | 4 | 4 | Software | 2019–2023 |
| Novo Nordisk Foundation | Venture capital | 4 | 4 | Deeptech | 2022–2026 |
| Novum Capital Partners | Venture capital | 4 | 2 | Energy | 2021–2023 |
| NPIF II – Praetura Equity Finance | Investment firm | 4 | 4 | Software | 2025 |
| NPIF Maven Equity Finance | Venture capital | 4 | 4 | Software | 2019–2022 |
| NPIF–Mercia Debt Finance | — | 4 | 4 | E-commerce | 2020–2023 |
| O Proptech | Venture capital | 4 | 4 | Proptech | 2019 |
| OGCI Climate Investments | — | 4 | 4 | Cleantech | 2020–2023 |
| OKX Blockdream Ventures | Venture capital | 4 | 4 | Fintech | 2022–2023 |
| Ole Strohschnieder | Angel | 4 | 4 | Foodtech | 2022–2025 |
| Olisipo Way | Venture capital | 4 | 3 | Wellness & Beauty | 2023–2024 |
| Olive Tree Ventures | Venture capital | 4 | 4 | Healthtech | 2017–2020 |
| Oliver Samwer | — | 4 | 3 | Fintech | 2016–2023 |
| Oltre Venture | Venture capital | 4 | 4 | Software | 2018–2021 |
| Oltre Impact | Venture capital | 4 | 3 | Edtech | 2022–2025 |
| Oomnium | Crowdfunding | 4 | 4 | Healthtech | 2024–2026 |
| Open Venture | Venture capital | 4 | 4 | Cleantech | 2024–2025 |
| OpenView Venture Partners | Venture capital | 4 | 3 | Software | 2016–2019 |
| Operator Partners | Venture capital | 4 | 4 | Software | 2021–2024 |
| OPRTRS Club | Venture capital | 4 | 4 | Software | 2025–2026 |
| Orange Collective | Venture capital | 4 | 4 | Software | 2024–2026 |
| Osney Capital | Venture capital | 4 | 4 | Cybersecurity | 2025–2026 |
| Outrun Ventures | Venture capital | 4 | 3 | Fintech | 2021–2024 |
