Siobhan Clarke

Siobhan is a Chair and Non-Executive Director with over 25 years of international experience across deep tech, AI, and energy. She has held senior executive roles at BP and Cisco, led early-stage investment at Episode 1 Ventures, and served on boards spanning public, private, and academic sectors in the UK and US.

At QUBIS, Siobhan brings expertise in science commercialisation, venture governance, and founder support. She also serves as Chair at Supercritical, Chair of Streamba Ltd and as an Independent Investment Committee Member with both QUBIS and Techstart Ventures LLP. Her work centres on scaling transformative technologies with clear commercial and societal impact.

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