Grace Cassy

Grace was appointed by the UK defence secretary to the 2025 Strategic Defence Review team as an external expert. She is the co-founder of CyLon Ventures, and a Board Member of Ten Eleven Ventures, which invests globally in leading security and resilience startups. She is recognized by Fortune as one the 13 leading investors in cyber security. 

Prior to founding CyLon, Grace spent 10 years in the UK Diplomatic Service, working on global security policy in Asia, Europe, and the Americas. Between 2004-6, she was an advisor to Prime Minister Tony Blair, specializing in Asia and national security.