Alex van Someren, co-founder of CyLon Ventures, invests exclusively in early-stage (pre-seed to seed) cybersecurity and resilience. See contact routes.
Alex van Someren, co-founder of CyLon Ventures, invests exclusively in early-stage (pre-seed to seed) cybersecurity and resilience startups, with check sizes typically ranging from £25,000 to £1.5M. His distinctive thesis defines cyber security broadly to include technologies from cyber skills training and identity management to threat intelligence, leveraging the firm's own capital for a founder-aligned approach. Notable portfolio companies include Immersive Labs and Tessian, which received CyLon as their first investor. Van Someren brings deep expertise from founding nCipher (a £350m IPO) and serving as the UK Government’s Chief Scientific Advisor for National Security.
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