Funds, angels and corporates active in European rounds
| Investor | Type | Deals | Companies | Top sector | Active |
|---|---|---|---|---|---|
| Siemens Technology Accelerator | — | 4 | 3 | Deeptech | 2016–2022 |
| Signal ventures | Venture capital | 4 | 4 | Software | 2022–2025 |
| Silicon Valley Bank UK | Bank | 4 | 4 | Fintech | 2022–2023 |
| Simon Josefsson | Angel | 4 | 4 | Fintech | 2016–2019 |
| SINTEF Venture V | — | 4 | 3 | Deeptech | 2018–2024 |
| Sistem Global | Venture capital | 4 | 3 | HRtech | 2025 |
| Sitka Capital | Investment firm | 4 | 4 | Foodtech | 2015–2017 |
| Skaala | Venture capital | 4 | 4 | Deeptech | 2025 |
| Skabholmen Invest | — | 4 | 4 | Energy | 2021–2023 |
| Skagerak Maturo | — | 4 | 4 | Software | 2017–2022 |
| SkyVision Capital | Venture capital | 4 | 4 | Gaming | 2021–2024 |
| Smart Energy Innovation Fund | Venture capital | 4 | 4 | Energy | 2022–2023 |
| SmartHub | Investment firm | 4 | 4 | Fintech | 2016–2021 |
| SNZ | Venture capital | 4 | 4 | Gaming | 2024–2025 |
| Social Starts | — | 4 | 3 | Media | 2013–2021 |
| Softline | — | 4 | 4 | Software | 2018–2021 |
| Solomon Hykes | — | 4 | 4 | Software | 2016–2025 |
| Sonder Capital | Venture capital | 4 | 2 | Healthtech | 2023–2026 |
| Sound Bioventures | Venture capital | 4 | 3 | Healthtech | 2022–2025 |
| Spacetime | Investment firm | 4 | 3 | AI | 2022–2025 |
| Spacewalk VC | Venture capital | 4 | 3 | Software | 2023–2026 |
| SpareBank 1 | — | 4 | 4 | Cleantech | 2014–2023 |
| SPARK VCT 3 | — | 4 | 4 | Software | 2006–2007 |
| Sparring Capital | Venture capital | 4 | 3 | Deeptech | 2022–2026 |
| SPARX Group | Venture capital | 4 | 4 | Software | 2017–2025 |
