Open Source in Finance Forum London 2025

Open Source in financial services has entered a pivotal new phase. No longer just individual tools and formation projects, key FINOS projects are forming a connected, strategic layer in banking technology stacks and the interdependencies are growing.

This talk explores how projects like Git Proxy, FDC3, the Common Domain Model, Common Cloud Controls, and AI Readiness are building momentum across the industry and how they increasingly rely on each other. What’s emerging is a shared, collaborative infrastructure built by and for the financial services industry.

But with that adoption comes responsibility. We’ll unpack why financial services firms need to invest in contributing to FINOS projects and why it’s important for teams and internal stakeholders to know the Open Source embedded in their systems.

We’ll also highlight the growing importance of Open Source training across the industry, particularly in security and software supply chain practices as fundamental skills for modern engineers.

This is a call to action for more contributors, more maintainers, and more champions. The Open Source stack in finance is no longer optional. It’s infrastructure.