who we are

From Protocol Core to Institutional Infrastructure

Nethermind builds the infrastructure public blockchain networks run on, and the software built on top of it. Founded in 2017, we write and maintain one of Ethereum's most widely adopted execution clients, operate nodes and validators in production, and audit and formally verify what we and others build. Today we're 200+ engineers, researchers, and security specialists applying that protocol-level expertise to work for financial institutions, reducing the operational risk of operating on public networks.
2017
Founded in London
Blockchain R&D firm, built on Ethereum.
2019
Release of Execution Node
Built to strengthen Ethereum's client diversity — reducing systemic risk and strengthening consensus resilience. Securing ~30% of the network.
2021
Engaged by Starknet - Pioneering L2
Protocol, tooling and apps across the zk L2 ecosystem.
2022
Launch of Security Practice
Independent practice rooted in protocol expertise; smart contract audits across the full stack, later strengthened by formal verification.
2023
Institutional-grade Staking Infrastructure Engineering
Full technical ownership from architecture to production deployment.
2024
Entering Regulated Financial Markets
Technical contributions, research and reporting — bridging blockchain infrastructure and institutional requirements.
2025
Integration of AI into Blockchain
Agentic systems and AI governance; AuditAgent — AI-augmented security review integrated into the audit process.
2026
Live PoCs with UBS
Protocol expertise translated into institutional solutions.
2017
Founded in London
Blockchain R&D firm, built on Ethereum.
2019
Release of Execution Node
Built to strengthen Ethereum's client diversity — reducing systemic risk and strengthening consensus resilience. Securing 20–30% of the network.
2021
Engaged by Starknet - Pioneering L2
Protocol, tooling and apps across the zk L2 ecosystem.
2022
Launch of Security Practice
Independent practice rooted in protocol expertise; smart contract audits across the full stack, later strengthened by formal verification.
2023
Institutional-grade Staking Infrastructure Engineering
Full technical ownership from architecture to production deployment.
2024
Entering Regulated Financial Markets
Technical contributions, research and reporting — bridging blockchain infrastructure and institutional requirements.
2025
Integration of AI into Blockchain
Agentic systems and AI governance; AuditAgent — AI-augmented security review integrated into the audit process.
2024
Live PoCs with UBS
Protocol expertise translated into institutional solutions.

200+

Team members

66+

Countries

9y

In blockchain

Protocol Depth. Institutional Fluency

A leadership team combining core blockchain engineering with careers in institutional finance, law and asset management.

Alvin Su

Chief Executive Officer
Alvin has 15+ years of experience across financial services, technology and blockchain. He was previously Head of Quantitative Technology at BNP Paribas Asset Management SME Alt Financing, and later a senior researcher at a digital asset hedge fund. At Nethermind, he has held leadership roles spanning engineering and commercial strategy, most recently serving as Chief Business Officer before becoming CEO.

Daniel Celeda

Chief Technology Officer
Leads Nethermind's technology and engineering organisation, including the Ethereum execution client and AI engineering capabilities. Earlier built fund-administration platforms for BNY Mellon and J.P. Morgan at Bravura, trading systems at TP ICAP and CME Group, and began his career at Microsoft.

Michal Zajac

Global Head of Institutions
Leads Nethermind's institutional client relationships and strategy, translating the firm's protocol depth into products and solutions institutions can adopt - across privacy, compliance and security on public networks. PhD in computer science from the University of Warsaw, with over fifteen years in cryptography and security research.

Nitin Gaur

Head of Institutional Growth
Senior advisor to DTCC Digital Assets and former global head of digital assets at State Street. Founded IBM's Digital Asset Labs and led IBM World Wire, its cross-border payments platform for banks and central banks.

Joe Kohler

Chief Legal Officer, Chief Operating Officer
Nearly 19 at Deutsche Bank, latterly managing director and co-global head of Global Markets Legal. Began at Linklaters across London, New York and Washington, and read law at Oxford.

Antonio Sabado

Co-Founder, Chief Growth Officer
Built front-office electronic-trading engineering teams across Morgan Stanley, HSBC and UBS over twelve years, then co-founded Nethermind in 2017. Leads the firm's commercial work with financial institutions.

Tomasz Stańczak

Founder
Founded Nethermind in 2017 and wrote the majority of its Ethereum execution client. Most recently co-executive director of the Ethereum Foundation, and former CEO of Twinstake, the institutional staking platform Nethermind co-founded. Earlier a vice president at Citi.
our mission

From protocol core to institutional infrastructure

At Nethermind, our mission is to deliver pioneering research and development that enable accessible, transparent and borderless economic and governance systems. We believe in the power of decentralized solutions and are dedicated to fostering the growth of Ethereum, Starknet, and the entire blockchain industry.

2017
2017
Founded in London

Blockchain R&D firm. Built on Ethereum - the leading smart contract platform.

2019
Release of Execution Node

Built to strengthen Ethereum's client diversity - reducing systemic risk and strengthening consensus resilience.

Securing 20–30% of the network.

2019
2021
2021
Engaged by Starknet - Pioneering Layer 2

From protocol to tooling and apps - broad, ongoing engineering across the zk L2 ecosystem.

2022
Launch of Security Practice

Independent practice rooted in protocol expertise. Smart contract audits across the full blockchain stack, later strengthened by formal verification.

2022
2023
2023
Institutional-grade Staking Infrastructure Engineering

Full technical ownership from architecture to production deployment.

2024
Entering Regulated Financial Markets

Technical contributions, research and reporting - bridging blockchain infrastructure and institutional requirements.

2024
2025
2025
Integration of AI into Blockchain

• POC - Agentic systems and AI governance brought to blockchain.
• AuditAgent - AI augmented security review integrated into the audit process.

2026
Live POCs with UBS

POCs deployments with UBS - protocol expertise translated into institutional solutions.

2026

Engineering what comes next

AI agents, programmable finance, privacy-preserving architectures and post-quantum cryptography before these become institutional requirements.

The Leading Engineers of Blockchain Infrastructure

Services
Protocol Engineering & Research
Network Infrastructure & Access
Scaling & Interoperability
Compliance & Identity
Asset & Treasury
blockchain expertise
EngineeringInfrastructureSecurityResearch
Nethermind SECURITY
Smart Contract AuditsFormal VerificationAudit ReportsAudit Subsidy ProgramAuditAgentAgentArenaZK Audits
institutional
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