Silicon Roundabout Ventures

Venture Capital

Community-driven London deeptech fund backing pre-seed and seed European founders in computing, defence, and energy.

London, United Kingdom · 3+ investments · 3 portfolio companies

Pre-Seed
Seed
Deep Tech
Defense
Energy
Headquarters
London, United Kingdom
Founded
2022
AUM
$5.0M
Portfolio Companies
3
Total Investments
3
Last Investment
Jan 2026
Geographic Focus
Europe, United Kingdom

Investment Thesis

First-cheque deeptech fund backing contrarian European scientists and engineers building defensible infrastructure in computing, defence, and energy.

Silicon Roundabout Ventures is a Venture Capital firm based in London, United Kingdom. It has made 3 investments in Deep Tech and Defense, including Haiqu, Panakeia and Archangel Lightworks.

Portfolio3

Co-investors17

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17 co-investors across 17 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×16 · Corporate VC ×1 · 9 shared rounds

Investment History

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