Stellar (Stellar Development Foundation) is a protocol foundation firm based in San Francisco, California that the stellar development foundation (sdf) is a us-based nonprofit that supports development and growth of the open-source stellar blockchain and its native asset xlm (lumens). founded in 2014, its mission is equitable access to the global financial system through low-cost cross-border payments and asset issuance. sdf funds ecosystem development, tooling and network infrastructure, and is led by ceo denelle dixon. They serve clients in United States. Stellar (Stellar Development Foundation) is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/stellar.