Attestant

Attestant is a UK-based institutional-grade Ethereum staking service provider founded in 2019, recently acquired by Bitwise Asset Management in November 2024. The company specializes in non-custodial staking infrastructure, allowing institutional clients to stake their ether while retaining full control of their assets.

Core Products and Services

Attestant provides managed Ethereum staking services designed for institutional investors, custodians, and exchanges. Their flagship offering is a non-custodial staking solution where clients maintain control of withdrawal keys while Attestant operates validator infrastructure using signing keys. This architecture ensures maximum security, as Attestant cannot move client funds without the withdrawal keys that clients exclusively control.

The company has developed proprietary infrastructure tools including Vouch (a multi-node validator client) and Dirk (a distributed remote key manager), both designed for high availability and security in production environments. They also publish the Attestant Overnight Rate (AOR), a benchmark metric representing the volume-weighted median annualized effective rate of return for Ethereum validators.

Attestant offers partnership opportunities for custodians and exchanges looking to provide Ethereum staking services to their customers, enabling partners to leverage Attestant's expertise and infrastructure for seamless client experiences.

Key Strengths

The team brings decades of combined experience from tier-one investment banks and wholesale capital markets, with expertise spanning technology, risk management, and treasury operations. The founding team includes professionals with PhDs in applied mathematics, computer science, software engineering, and computational chemistry, demonstrating deep technical and financial expertise.

Attestant operates one of the largest Ethereum validating infrastructures globally and maintains ISO 27001 certification for information security management. Their infrastructure is built for institutional requirements, featuring multi-layered security, high availability architecture, and advanced validator strategies. The company actively contributes to the Ethereum ecosystem through open-source software development and publishes regular research on staking economics, network performance, MEV, and other technical topics.

Notable Achievements

Attestant was acquired by Bitwise Asset Management in November 2024, expanding Bitwise's product suite to include non-custodial institutional staking and onchain solutions. The company has published over 40 technical articles exploring Ethereum staking mechanics, validator performance, network metrics, and financial concepts relevant to institutional stakers.

They developed the Attestant Overnight Rate (AOR), a standardized benchmark for measuring Ethereum staking returns, calculated using a sophisticated volume-weighted methodology and published daily since 2022. The company has been operational since before the Ethereum 2.0 beacon chain launch in December 2020, demonstrating early mover advantage and long-term commitment to the ecosystem.

Why Choose Attestant

Attestant offers institutional-grade infrastructure with non-custodial security, ensuring clients never lose control of their assets. Their team combines deep financial services experience with cutting-edge blockchain expertise, providing a bridge between traditional finance and decentralized infrastructure.

The company's focus on transparency, reliability, and continuous innovation—including proprietary tools like Vouch and Dirk—positions them as a trusted partner for institutions entering the Ethereum staking economy. Their recent acquisition by Bitwise provides additional resources and credibility while maintaining their commitment to clients, open-source contributions, and community engagement.