Project Eleven announced a $20 million Series A funding round led by Castle Island Ventures to advance post-quantum security for digital assets. The company is developing tools to facilitate complex migrations for networks securing over $4 trillion in value. This funding arrives as post-quantum cryptography becomes a key priority for both government and industry.
$20M Series A Funds Post-Quantum Digital Asset Migration
The company intends to develop tools for complex migrations, focusing on readiness assessments, test environments, and phased deployment sequencing for networks like Bitcoin. This funding follows a $6 million seed round from June 2025, accelerating the timeline for practical post-quantum cryptographic solutions. Project Eleven is actively collaborating with the Solana Foundation and other Layer 1 ecosystems to proactively plan for post-quantum readiness. Their upcoming product release in early 2026 will offer capabilities for institutions and users seeking to secure long-term cryptographic systems against advances that could weaken current standards like elliptic curve cryptography. Castle Island Ventures and Coinbase Ventures led the latest investment, recognizing the urgency of this evolving quantum threat landscape.
Elliptic Curve Cryptography Vulnerability Drives Project Eleven’s Focus
The increasing threat of quantum computing is driving Project Eleven’s development efforts, as advances could compromise elliptic curve cryptography (ECC). This cryptographic standard currently secures over $4 trillion in digital assets, including networks like Bitcoin, making a proactive transition crucial. Project Eleven aims to facilitate this shift by providing tools for assessing readiness, testing migrations, and sequencing deployments across complex networks. Recognizing the lengthy upgrade processes inherent in cautious blockchain governance, the company focuses on enabling deliberate migration rather than reactive improvisation. Their tools are designed to address the “existential risk” posed by quantum capabilities to the digital asset ecosystem.
Useful quantum computing is the biggest and most complex threat public blockchains have ever faced.
Nic Carter, General Partner at Castle Island Ventures
