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Leonidas

markos-fragkiadakis profile picture
Founded2026
1Employees

Located in London, United Kingdom

FintechDeep TechGov Tech / Defense

Banking for Europe's frontier industries across defence, security, and resilience.

Europe is entering a defining decade. NATO allies have committed to spend 5% of GDP on defence and security by 2035, unlocking over €1 trillion in spending. This has fueled a wave of innovation far beyond traditional defence: from AI, space and robotics to energy, compute and biotechnology. But traditional financial institutions were never designed to bank or finance the kind of innovation Europe now needs at scale: high-growth, technologically advanced, and operationally complex, often in sensitive areas such as defence and dual-use. Left unaddressed, that mismatch risks becoming the #1 bottleneck to Europe's economic, technological, and strategic future. We're building a dedicated financial institution from first principles and with one mission: power the next era of home-grown innovation in Europe and allied nations.

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Meet the Team

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Founder & CEO at Leonidas

Markos Fragkiadakis

Ex-Goldman Sachs. Led €15B+ in debt syndications for European banks in early 20s. MBA from Harvard Business School.