Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| The Inner Foundation | Venture capital | 2 | 2 | Healthtech | 2024–2026 |
| InnoSpark Ventures | Venture capital | 2 | 1 | Healthtech | 2024 |
| Innova Lazio | — | 2 | 2 | HRtech | 2016–2017 |
| Innovate UK Investor Partnerships | Venture capital | 2 | 2 | Deeptech | 2025–2026 |
| Innovate UK’s Investor Partnership Programme | Venture capital | 2 | 2 | Cleantech | 2025–2026 |
| Innovate UK Smart Grant | Venture capital | 2 | 2 | Fashion | 2025 |
| InnovateUK Biomedical Catalyst | Investment firm | 2 | 2 | Healthtech | 2023 |
| Innovation Credit fund | — | 2 | 2 | Software | 2017–2025 |
| 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 |
| Innovestor Angel Co-fund | Investment firm | 2 | 2 | Software | 2025 |
| 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 |
| 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 |
