Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| ŞirketOrtağım Angel Investment Network | Venture capital | 1 | 1 | Software | 2023 |
| Siryo | Venture capital | 1 | 1 | Foodtech | 2022 |
| Sisquella Grup | Corporate | 1 | 1 | Fintech | 2021 |
| Sista | Venture capital | 1 | 1 | Software | 2023 |
| SistaAct | Venture capital | 1 | 1 | Cleantech | 2025 |
| Sistema SmartTech | Corporate | 1 | 1 | HRtech | 2022 |
| Sistems | Corporate | 1 | 1 | Energy | 2022 |
| Sisu 100 network | Venture capital | 1 | 1 | E-commerce | 2023 |
| Sisyphus | Venture capital | 1 | 1 | Cybersecurity | 2026 |
| SIT Capital | — | 1 | 1 | Healthtech | 2021 |
| Siteworkers | Corporate | 1 | 1 | Energy | 2016 |
| Sivananthan Laboratories | Venture capital | 1 | 1 | Software | 2025 |
| Sivas Asset Management | Investment firm | 1 | 1 | Deeptech | 2022 |
| Sivo | Venture capital | 1 | 1 | Fintech | 2022 |
| Sivotec | Corporate | 1 | 1 | Deeptech | 2022 |
| six international banks | Bank | 1 | 1 | Cleantech | 2025 |
| Sixfold | Corporate | 1 | 1 | Space | 2023 |
| SIXT | Venture capital | 1 | 1 | Transportation | 2023 |
| Sixth Element Capital LLP (6EC) | — | 1 | 1 | Healthtech | 2017 |
| SixThirty - FinTech Accelerator | — | 1 | 1 | Fintech | 2016 |
| Sjaak Fleer | Angel | 1 | 1 | Sports | 2023 |
| Sjóvá | Investment firm | 1 | 1 | Cleantech | 2023 |
| SK hynix | Venture capital | 1 | 1 | AI | 2026 |
| SK networks | Venture capital | 1 | 1 | Agritech | 2023 |
| SK Telecom Ventures | — | 1 | 1 | Hardware | 2015 |
