R3 / Corda is a protocol foundation firm based in London, United Kingdom that r3 is an enterprise technology company founded in 2014 and based in london and new york, focused on digitizing financial markets. its corda platform is an open, permissioned distributed ledger used by banks, market infrastructures and corporates to tokenize assets and currencies. r3 states that corda supports more than 10 billion dollars in tokenized real-world assets and underpins deployments including the six digital exchange, euroclear's digital financial market infrastructure and japan's progmat network. in 2025 r3 announced a strategic collaboration with the solana foundation to connect permissioned and public blockchains. They serve clients in United Kingdom, United States. R3 / Corda is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/r3-corda.