Quantum company
Project Eleven
Post-quantum cryptography company hardening Bitcoin and digital assets.
Technology
Project Eleven builds tools to help digital asset networks and institutions migrate to post-quantum cryptography. Founded in 2024 and based in New York, it raised a USD 20 million Series A led by Castle Island Ventures in January 2026, after a USD 6 million seed in 2025. Its products include Yellowpages, a post-quantum cryptographic registry for Bitcoin holders.
