Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Signal Ocean | Venture capital | 1 | 1 | Software | 2022 |
| Signature Hospitality Group | Venture capital | 1 | 1 | Gaming | 2025 |
| Signavio | Venture capital | 1 | 1 | Software | 2023 |
| Signet Jewelers | Corporate | 1 | 1 | E-commerce | 2021 |
| Sigul Invest | Venture capital | 1 | 1 | E-commerce | 2026 |
| Siguler Guff & Company | Venture capital | 1 | 1 | AI | 2025 |
| Sigurgeir Guðlaugsson | Angel | 1 | 1 | Healthtech | 2022 |
| Siim Teller | Angel | 1 | 1 | Software | 2022 |
| Sijoittaja Pro‘s investor group | Venture capital | 1 | 1 | E-commerce | 2022 |
| Silanes Group | Private equity | 1 | 1 | Healthtech | 2023 |
| Silfurberg | Venture capital | 1 | 1 | Healthtech | 2021 |
| Silicon Catalyst | Venture capital | 1 | 1 | Semiconductors | 2025 |
| Silicon Valley | Venture capital | 1 | 1 | Cleantech | 2023 |
| Silicon Valley investor | Venture capital | 1 | 1 | Software | 2025 |
| Silke Rickert-Sperling | Angel | 1 | 1 | Healthtech | 2022 |
| Sillever | Corporate | 1 | 1 | Robotics | 2022 |
| Siloé Infrastructures | Investment firm | 1 | 1 | Energy | 2023 |
| Silva Ndoja | Angel | 1 | 1 | Software | 2025 |
| Silver Lake Waterman | Venture capital | 1 | 1 | Edtech | 2021 |
| Silver Meadow Invest | — | 1 | 1 | Media | 2017 |
| Silver Point Ventures | — | 1 | 1 | Travel | 2016 |
| Silver Rock Group | — | 1 | 1 | Fintech | 2020 |
| Silver Scale | Venture capital | 1 | 1 | Software | 2024 |
| Silvercrown Capital | Private equity | 1 | 1 | Deeptech | 2025 |
| Silverfleet Capital | Investment firm | 1 | 1 | Marketing | 2016 |
