London remains the global capital of fintech investment, yet a new report reveals the system underpinning this success remains overwhelmingly American. European fintech firms increasingly depend on US technology infrastructure, raising sovereignty concerns that grow harder to ignore as the sector expands.

The dependency creates vulnerabilities, with 67% of European fintech systems relying on American platforms. This concentration threatens European data autonomy and regulatory control. London's position as a fintech hub appears increasingly precarious as American companies dominate the underlying technology stack.

European policymakers face mounting pressure to develop indigenous alternatives. Without decisive action, the continent risks permanent technological subordination to American interests, diminishing its ability to shape the future of global finance according to European values and regulations.