Euler Finance is a protocol foundation firm based in London, United Kingdom that euler finance is a decentralized lending protocol developed by euler labs, running on ethereum and other chains. it launched in december 2021, was exploited for about 195 million dollars in march 2023 with the funds later recovered, and relaunched as euler v2 in 2024. version 2 uses a modular vault architecture, the euler vault kit, that lets anyone create and connect permissionless lending vaults. in 2025 its total value locked grew from under 100 million dollars to over 2 billion dollars before falling to around 1 billion dollars following the collapse of stream finance in november 2025. co-founder michael bentley stepped down as ceo in 2025, moving to an advisory role, and jonathan han became ceo as the protocol refocused on institutional and fintech users. They serve clients in global. Euler Finance is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/euler-finance.