Silicon Roundabout Ventures

Silicon Roundabout Ventures

Overview

Silicon Roundabout Ventures is a community-driven venture capital firm based in London, UK. It specializes in writing the first cheques for pre-seed and seed stage Deep Tech startups across Europe. The firm leverages its community of over 15,000 founders and engineers to support its portfolio companies. Its investment focus is on foundational infrastructure technologies with strong intellectual property in sectors including Computing, Defence, and Energy.

Portfolio Companies

13

Investments

CompanyDateStageLead
Cellbricks TherapeuticsMar 2026SeedLead
HaiquJan 2026SeedCo-investor
Haiqu Inc.Jan 2026SeedCo-investor
SwisspodNov 2025SeedCo-investor
Astral SystemsFeb 2025SeedCo-investor

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersLondon, England
Year FoundedN/A

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