Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Innovation Development Oman Investments | Investment firm | 2 | 2 | Energy | 2023–2024 |
| Innovation Fund Association | Investment firm | 2 | 2 | Energy | 2021–2023 |
| Innovation Fund North-Holland | Investment firm | 2 | 2 | Media | 2023 |
| Innovationsstiftung Schwyzer Kantonalbank | — | 2 | 2 | Software | 2019–2021 |
| Innowatio Group | Corporate | 2 | 2 | Software | 2015–2016 |
| Inovia Capital Precede Fund I | Venture capital | 2 | 2 | Cybersecurity | 2023 |
| Inserm Transfert Initiative | — | 2 | 2 | Healthtech | 2015 |
| Insha Venture Capital Investment Fund (Insha GSYF) | Investment firm | 2 | 2 | Edtech | 2025–2026 |
| Insiders Ventures | Venture capital | 2 | 2 | Software | 2025 |
| Insmat | — | 2 | 2 | Software | 2018 |
| INSQUARED Holding | Corporate | 2 | 2 | Fintech | 2023–2025 |
| Institute for Energy Diversification and Saving | — | 2 | 2 | Energy | 2021 |
| Intact Ventures | Venture capital | 2 | 1 | Fintech | 2022–2024 |
| Intelectium | — | 2 | 2 | Foodtech | 2017–2023 |
| Inteligo Bank | Bank | 2 | 1 | Healthtech | 2021–2022 |
| Inter Mutuelles Assistance Group | Venture capital | 2 | 2 | Software | 2024 |
| Intermedia Vermögensverwaltung | Venture capital | 2 | 2 | Fintech | 2022–2023 |
| Intermediate Capital Group | Investment firm | 2 | 2 | Energy | 2022–2023 |
| International Airlines Group | — | 2 | 2 | Energy | 2018–2025 |
| International Airlines Group (IAG) | Venture capital | 2 | 2 | Cleantech | 2022–2025 |
| Internet Attitude | Investment firm | 2 | 2 | Marketing | 2014–2016 |
| Interogo Holding | Corporate | 2 | 2 | Energy | 2022–2025 |
| InterWest Partners | — | 2 | 1 | Software | 2014–2016 |
| Intrepid Partners | Venture capital | 2 | 2 | Healthtech | 2025 |
| Intuition VC | Venture capital | 2 | 2 | Cybersecurity | 2025–2026 |
