Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Sparta Capital | Venture capital | 2 | 2 | Cleantech | 2022–2023 |
| Spicehaus Swiss Venture Fund | Venture capital | 2 | 2 | Fintech | 2021 |
| Spider Capital | — | 2 | 2 | Software | 2017–2021 |
| Spiral Capital | Venture capital | 2 | 1 | Cleantech | 2024–2026 |
| SportInnovator | Venture capital | 2 | 2 | Software | 2023–2025 |
| the SPRI Group | Venture capital | 2 | 2 | Healthtech | 2023 |
| SPRIM Global Investments | Investment firm | 2 | 2 | Healthtech | 2023–2025 |
| Spring Lake Equity Partners | — | 2 | 2 | Software | 2020–2021 |
| The Sputnik Group | — | 2 | 2 | Wellness & Beauty | 2016 |
| SQM Lithium Ventures | Venture capital | 2 | 2 | Cleantech | 2024–2025 |
| Squarepoint Capital | Venture capital | 2 | 2 | Healthtech | 2022 |
| Sridhar Ramaswamy | Angel | 2 | 2 | Software | 2022 |
| SRIW Life Sciences | Venture capital | 2 | 1 | Healthtech | 2021–2022 |
| SSE Business Lab | Venture capital | 2 | 2 | AI | 2026 |
| ST Engineering Ventures | Venture capital | 2 | 2 | Transportation | 2022 |
| Stacker Ventures | Venture capital | 2 | 2 | Fintech | 2021–2023 |
| Stahl Invest | — | 2 | 1 | Consumer | 2016–2017 |
| Standard Investment Company | Investment firm | 2 | 2 | Healthtech | 2022 |
| Standard Industries | Venture capital | 2 | 2 | AI | 2023–2025 |
| Stanford University | — | 2 | 2 | Healthtech | 2017–2024 |
| Stanislas Polu | Angel | 2 | 2 | AI | 2023–2026 |
| Stanley Black & Decker | — | 2 | 2 | Energy | 2018–2019 |
| StarApps | Venture capital | 2 | 2 | Software | 2024–2025 |
| Starburst Ventures | Venture capital | 2 | 2 | Software | 2025 |
| Starlight VC | — | 2 | 2 | Cleantech | 2017 |
