Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| IFA capital | Venture capital | 2 | 1 | Healthtech | 2021 |
| IFG.VC | Venture capital | 2 | 2 | Proptech | 2021 |
| ifund | Venture capital | 2 | 2 | Cleantech | 2022–2023 |
| iGlobe Partners | — | 2 | 2 | Healthtech | 2017–2022 |
| Ignia Partners | Venture capital | 2 | 2 | AI | 2023 |
| Ignite Ventures | Venture capital | 2 | 2 | Software | 2025 |
| Igor MatsanyUnited Kingdom | Angel | 2 | 2 | Travel | 2011–2013 |
| Igor Tikhturov | — | 2 | 2 | E-commerce | 2020–2023 |
| Iker Marcaide | — | 2 | 2 | E-commerce | 2016–2024 |
| Ikerlan | Venture capital | 2 | 2 | Deeptech | 2021–2026 |
| Ikigai | Venture capital | 2 | 2 | Cleantech | 2023–2025 |
| iLab Ventures | Investment firm | 2 | 2 | HRtech | 2011–2025 |
| Iliad | Venture capital | 2 | 2 | Cybersecurity | 2023 |
| İlker Diker | Angel | 2 | 2 | E-commerce | 2022 |
| ILTE Lietuva | Venture capital | 2 | 2 | Space | 2025 |
| iMENA Holdings | Investment firm | 2 | 1 | E-commerce | 2013–2014 |
| Impact Equity Fund | Investment firm | 2 | 1 | Energy | 2022–2024 |
| Impact Foundations Fund | Investment firm | 2 | 2 | Agritech | 2023 |
| Impact Innovation Fund | Venture capital | 2 | 2 | Fintech | 2025 |
| Impact51 | Venture capital | 2 | 1 | Healthtech | 2019–2023 |
| Impellent Ventures | Venture capital | 2 | 2 | AI | 2024–2025 |
| Imperia Holding | — | 2 | 2 | Foodtech | 2021–2023 |
| Imperial College Innovation Fund (ICIF) | Accelerator | 2 | 2 | Energy | 2021–2022 |
| Imperial College London | Government / public | 2 | 2 | Energy | 2021–2024 |
| In-Q-Tel (IQT) | Venture capital | 2 | 2 | AI | 2023–2025 |
