A Thriving, Growing Ecosystem

This year’s OSFF London proved that the open-source movement in financial services is accelerating. We welcomed over 600 attendees joining us in person to connect and collaborate, including in our hands-on workshops. Our community footprint continues to expand, with attendees representing 238 different organizations across 29 countries. We were thrilled to see a fantastic blend of our dedicated returning community alongside a strong wave of first-time attendees, signifying robust, continued growth and expanding interest in our shared mission.

Starting with Hands-On Workshops

We started the week strong with two highly collaborative days of pre-conference workshops on June 23rd and 24th.

Attendees rolled up their sleeves to explore some of the most important challenges facing the industry, including:

• Designing enterprise-grade cloud topologies with the Common Cloud Controls
• Moving tokenized assets from experimentation toward production standards with the Common Domain Model
• Shifting from static diagrams to Architecture as Code with FINOS CALM
• Standardizing desktop workflows with FDC3
• Navigating the Open SDLC Controls Framework

These sessions set the tone for the week: practical collaboration focused on turning shared industry challenges into implementable solutions.

Moving at the Speed of AI

The message from the main stage was clear: open source in financial services is moving at the speed of AI.

The keynotes featured major collaborative announcements and showcased a growing and increasingly mature ecosystem of open-source projects, standards, and initiatives. And, unsurprisingly, AI came up more than a few times. 🙂

• The FINOS AI Fund: Backed by Founding Premier Members DTCC, Morgan Stanley, RBC, and NatWest, we launched the FINOS AI Fund to amplify the collective voice of financial services to accelerate responsible agentic AI adoption in the industry. Initial focus areas include shared governance, controls, specifications, reference implementations, and intra- and inter-firm workflows.
• Strengthening Open-Source Supply-Chain Resiliency with OSERA: We announced the intent to form OSERA, the Open Source Enterprise Resiliency Alliance, a global, vendor-neutral, member-governed coalition designed to strengthen the open-source components on which financial services industry depends. This builds on successful pilots conducted by initial members including Deutsche Bank, Goldman Sachs, Moderne, Morgan Stanley, RBC, Sonatype, and TD Bank.
• Accelerating Open RegTech: Michael J. Hsu, former Acting Comptroller of the Currency and FINOS’s new Executive Advisor, Regulatory, shared our vision for Open RegTech: using open source as the foundation and AI as the accelerant to transform regulation and compliance. Machine-readable regulation closes the interpretation gap, open source builds the shared layers, and AI accelerates the work, improving outcomes and reducing burden.
• Workflow Automation at Scale with Fluxnova: Fidelity and Deutsche Bank provided examples of Fluxnova’s rapid adoption at enterprise scale, demonstrating the orchestration platform’s growing momentum in financial services. They also previewed Fluxnova 3.0, with new AI integrations and support for agentic workflows, and we highlighted the Fluxnova Partner Program to accelerate adoption.

The keynotes were also packed with significant project updates including the FDC3 3.0 with enhanced trust and identity features, GitProxy 2.0 enabling secure open-source contribution, and the re-launched InnerSource SIG. We also highlighted a new research paper on "The Value of Open Data on Global Entities," and we launched the 2026 State of Open Source in Financial Services Survey.

More Than 64 Sessions Across Seven Categories

The program was organized across seven categories, helping attendees explore the projects and practices already enabling responsible AI, interoperability, and modernization:

• AI Governance, Risk & Security
• AI Implementation & Engineering
• AI Lightning Track
• Cultivating the Culture: OSPO & Readiness
• Fluxnova & Platform Automation
• Platform Engineering & Cloud Native
• The Connective Tissue: Interoperability & CDM

Thank You to Our Sponsors and Community

We could not have delivered this outstanding event without the support of our sponsors. A special thank you to Broadcom, GitLab, Moderne, Red Hat, Temporal, and all of our community and side-event sponsors.

The “hallway track” was just as valuable as the formal program, with conversations, introductions, and new collaborations happening throughout the venue. The Sponsor Showcase was a key part of that energy, helping attendees connect with the organizations supporting our ecosystem.

We are also proud to share that OSFF London received the highest-rated Gold Badge from the CHAOSS D&I Event Badging Program. This reflects our continued commitment to creating a diverse and inclusive environment, while recognizing that meaningful progress requires ongoing attention, accountability, and action.

Checkout the Content and Get Involved

All sessions were recorded and are available on the FINOS site for anyone who missed a talk or would like to revisit the content. Videos will also be released on the FINOS YouTube channel. Subscribe to our channel to get updates when new videos are released.

OSFF is only one part of the collaboration happening across the FINOS community. Individuals can get involved year-round by joining a project or working group, contributing code or expertise, attending community calls, reviewing proposals, or helping shape emerging standards and initiatives. Whether you are a developer, architect, risk professional, regulator, or open-source advocate, there is a place to contribute. Learn more at finos.org. And don’t forget to take the State of Open Source in Financial Services survey.

Thank you to everyone who braved the London heat, shared their expertise, and helps push the boundaries of what open source can achieve in financial services.

We look forward to seeing you at the next Open Source in Finance Forum.