What Nethermind does

Nethermind, legally Demerzel Solutions Limited and headquartered in London, is a blockchain infrastructure and engineering firm founded in 2017. The company builds and maintains the Nethermind Client, a .NET-based Ethereum execution client that secures approximately 30% of the Ethereum network and operates 10,000+ Ethereum nodes, alongside the Juno client (Starknet, in Go) and Voyager block explorer. The company also develops developer tooling including Sedge (one-click validator deployment), Clear (formal verification framework for Solidity), AuditAgent (AI-assisted smart contract security), and AgentArena (adversarial AI security analysis), and is developing CLAP, a Lean-based zero-knowledge circuit compiler funded by the Aptos Foundation. The firm is the core engineering team behind Gnosis Chain with ~70% network penetration and participates in core Ethereum upgrades including EIP-4844, EIP-4337, EOF, and Verkle Trees.

Nethermind serves two primary customer segments: financial institutions (banks, asset managers, trading firms) and crypto-native protocols. Named institutional clients include UBS, Deutsche Bank, Nomura's Laser Digital, Brevan Howard's WebN group, TruFin, and Lido, with joint work spanning the Libre Capital RWA tokenization platform (US$150M+ AUM since 2024), the Deutsche Bank 'From Wallet to Chain' compliance whitepaper, and UBS public-Ethereum compliance PoCs validated on Sepolia. The company also runs the Ethereum Foundation's $1M Security Subsidy Program audits alongside Areta and Chainlink, and is a member of the Enterprise Ethereum Alliance alongside Polygon Labs and Ethena.

Revenue is generated primarily through bespoke professional-services engagements — Blockchain-as-a-Service for institutional deployments, smart contract and ZK audits, formal verification, infrastructure management (including Lido validator operations), and dApps/enterprise engineering. Core tools (Nethermind Client, Juno, Sedge, Clear) are open-source and distributed via GitHub, with revenue derived indirectly through enterprise adoption, ecosystem grants, and consultancy. The company has 200+ team members across 66+ countries, is bootstrapped since inception, and has disclosed only minor grant funding (~$190K from 2018-2020), making it operationally self-funded with no known external venture or private equity backing.

Name

Nethermind

Legal name

Demerzel Solutions Limited

Website

https://nethermind.io

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

101–250 employees

Short description

Nethermind is a London-based blockchain infrastructure firm that builds the Nethermind Ethereum execution client (securing ~30% of the network) and Starknet tooling, and provides professional services including audits, BaaS, and ZK research to financial institutions and crypto protocols.

Ownership category

akta.pro rank

Product category

Blockchain Infrastructure

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210), Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)

SIC

Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)

akta.pro primary industry

Developer APIs & Node Access (RPC providers, node infrastructure APIs) (FSAPABAC)

akta.pro secondary industries

Deployment, Automation & DevOps (build pipelines, contract deployment tools) (FSAPABAH), Smart Contract Frameworks & SDKs (developer kits, templates, standards) (FSAPABAB), Regulatory Reporting, Tax & Audit Trails (reconciliation, provenance) (FSAPAJAI)

Keywords

• Blockchain infrastructure
• Ethereum execution client
• Smart contract audits
• Formal verification
• Institutional defi

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Blockchain-as-a-Service (BaaS): End-to-end institutional-grade blockchain solutions including custom blockchain solutions, deployment, integration, and ongoing management. Revenue likely derived from project fees, consulting engagements, and long-term managed services contracts with financial institutions and enterprises.
2. Smart Contract Audits & Security Services: Security audits for Ethereum and Starknet applications, including formal verification and ZK audits. Revenue generated through audit fees per engagement, with security researchers conducting reviews for protocols, enterprises, and DeFi projects.
3. Open Source Infrastructure & Tooling: Core open-source products (Nethermind Client, Juno, Sedge, Clear) provided free of charge; revenue derived indirectly through ecosystem influence, grants, and enterprise adoption of the broader platform.
4. Ethereum Foundation & Ecosystem Grants: Received Ethereum Foundation grant in 2018 to deliver full-client implementation. Participates in the Ethereum Security Subsidy Program as a contributing audit provider. Ongoing ecosystem grant participation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels9 records

Core offering

Nethermind develops and maintains core blockchain infrastructure software — most notably the Nethermind Client (Ethereum execution client), Juno Client (Starknet client), and Voyager block explorer — alongside developer tools and institutional services. Its commercial offering is anchored by Blockchain-as-a-Service for institutions (compliance-grade deployments supporting rollups, tokenization, KYC/AML, and biometric identity) and Nethermind Security (smart contract audits, formal verification, and ZK audits) delivered to financial institutions, crypto-native protocols, and government entities. Revenue is generated through bespoke professional services engagements, audit fees, ecosystem grants, and long-term managed infrastructure contracts.

Product overview

Nethermind is a blockchain infrastructure company offering a comprehensive portfolio of products and services centered on Ethereum and Starknet ecosystems. The core product offerings include the Nethermind Client (Ethereum execution client securing ~30% of the network), Juno Client (Starknet client), and Voyager (Starknet block explorer). Development tools include Sedge (one-click PoS validator setup), Clear (formal verification for Solidity), AuditAgent (AI-powered smart contract security), and AgentArena (AI adversarial security analysis). Services span Blockchain-as-a-Service for institutional deployments, Nethermind Research (cryptography, DeFi, protocol research), Nethermind Security (smart contract audits, formal verification, ZK audits), Infrastructure Management (node operations for Ethereum/Lido), dApps & Enterprise Engineering, Biometric Identity (palm-vein ZK-based authentication), and AI Agents & Infrastructure. The company operates 10,000+ Ethereum nodes and serves major institutional clients including Brevan Howard Digital, Nomura, and Lido. The organization has 200+ team members across 66+ countries.

Differentiator

Problem solved

Functional benefit

Brands

• Nethermind Client: An Ethereum client with high levels of performance and customizability
• Nethermind Research
• Nethermind Security
• Sedge
• Clear
• AuditAgent
• AgentArena
• Juno Client
• Voyager
• Blockchain-as-a-Service

Products and services

• Nethermind Client An Ethereum execution client written in .NET with high performance and customizability, securing approximately 30% of the Ethereum network as of 2025. Distributed via open-source and adopted by node operators, validators, and institutional infrastructure providers.
• Juno Client A Starknet client built in Go that supports decentralization of the Starknet network, enabling independent node operation for the ZK-rollup ecosystem.
• Voyager A Starknet block explorer and analytics platform providing blockchain data access, visualization, and on-chain analytics for the Starknet ecosystem.
• Sedge A one-click setup tool for Proof-of-Stake network and chain validators and nodes, simplifying node deployment for blockchain networks.
• Clear An open-source formal verification framework for programs written in Solidity, enabling mathematically proven correctness of smart contract code.
• AuditAgent An AI-powered tool to help developers secure their smart contracts through automated vulnerability detection, security analysis, and audit support, accessible via a dedicated web portal.
• AgentArena An AI-powered adversarial testing platform enabling continuous, adaptive, and data-driven security assessments for blockchain protocols and smart contracts, accessible via a dedicated web portal.
• Starkweb SDK for front-end development on Starknet.
• CLAP (Correctly Compiling the Leanest Possible Circuits) A Lean-based compiler for zero-knowledge circuits that compiles verified Lean programs into constraint systems and witness generators, enabling formally verified circuit development with soundness guarantees.
• Blockchain-as-a-Service for Institutions Institutional-grade blockchain solutions with built-in security, compliance, KYC/AML frameworks, and regulatory alignment. Supports OP, Arbitrum, and based rollup stacks, TEE, and privacy-focused settlement systems for tokenized assets, cross-border payments, and institutional fund management.
• Nethermind Security Security services for Ethereum and Starknet applications, spanning smart contract audits, formal verification, and ZK audits, delivered by security researchers and protocol engineers to DeFi protocols, enterprises, and financial institutions.
• Nethermind Research Blockchain research division advancing cryptography, DeFi, and protocol design research, combining theoretical work with practical applications for the Ethereum and Starknet ecosystems.
• Infrastructure Management Secure and reliable blockchain infrastructure operation including Ethereum and Lido validator management, node operations, and ongoing support services for institutional and protocol clients.
• dApps & Enterprise Engineering Custom blockchain solutions for enterprises and financial institutions, covering tokenization, Solidity, Cairo, and architectural design for production-grade decentralized applications.
• Biometric Identity Privacy-first digital identity systems using tamper-resistant palm-vein biometric hardware and zero-knowledge cryptography, enabling secure authentication without storing personal data.
• AI Agents & Infrastructure Production-ready AI agents and infrastructure for enterprise systems, enabling intelligent automation at scale with compliance-ready architecture and continuous support.

Quantifiable outcome

• ~30% of Ethereum network secured by Nethermind Client (2025)
• +6 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability9 records

Feature11 records

Partnerships

Eleven partnerships are on record, tiered core, flagship and minor.

• UBScoreStrategic or Co-development Partner · 23 June 2026UBS and Nethermind completed two joint proofs of concept demonstrating that public Ethereum can meet the operational and regulatory standards required by financial institutions. The PoCs validated configurable compliance rules at the Ethereum node layer and transaction routing through relay services, successfully tested on the Sepolia test network. This partnership addresses the institutional adoption challenge by enabling compliance controls without modifying the core Ethereum protocol.
• Ethereum Foundation / Areta (Ethereum Security Subsidy Program)flagshipStrategic or Co-development Partner · 14 April 2026Nethermind participates as a contributing audit provider in the Ethereum Foundation's $1M security audit subsidy program (Trillion Dollar Security Initiative), alongside Areta and Chainlink. The program subsidizes up to 30% of audit costs for Ethereum mainnet projects focused on CROPS principles (censorship resistance, open source, privacy, security). Nethermind is part of the expert committee selecting cohorts.
• Mastercard Crypto Partner ProgramminorGTM or Marketing Partner · 10 March 2026Mastercard's Crypto Partner Program connects over 100 crypto-native companies with global payments infrastructure. Nethermind's institutional BaaS offering aligns with Mastercard's initiative to bridge on-chain innovation with conventional payment infrastructure.
• Enterprise Ethereum Alliance (EEA)coreStrategic or Co-development Partner · 11 February 2026Nethermind joined the Enterprise Ethereum Alliance as a new member alongside Polygon Labs and Ethena, contributing to institutional Ethereum infrastructure development. The EEA serves as the institutional coordination layer for Ethereum, enabling enterprises and protocol teams to align on large-scale, regulated deployments with governance protections.
• L2BEATcoreStrategic or Co-development Partner · 4 December 2025Nethermind and L2BEAT co-authored 'The Future of Financial Infrastructure: Ethereum's Layer 2 Landscape' report, analyzing how Ethereum and its Layer 2 networks are evolving into core infrastructure for institutional finance.
• EtherealizecoreStrategic or Co-development Partner · 4 December 2025Nethermind and Etherealize co-authored 'The Future of Financial Infrastructure: Ethereum's Layer 2 Landscape' report, examining scalability, security, data availability, and compliance in Ethereum's L2 ecosystem.
• Deutsche BankcoreStrategic or Co-development PartnerIn collaboration with Deutsche Bank, Nethermind published a whitepaper ('From Wallet to Chain: A Bridge of Two Worlds on an Ethereum Transaction') exploring whether Ethereum's public infrastructure can satisfy the operational, compliance, and regulatory expectations of the financial sector.
• PwC GermanycoreStrategic or Co-development PartnerNethermind and PwC Germany jointly authored a report on Tokenization Standards, providing a deep dive into how token standards influence compliance, security, and interoperability in institutional blockchain adoption.
• Nomura's Laser DigitalcoreStrategic or Co-development PartnerIn collaboration with Nomura's Laser Digital and Brevan Howard's WebN group, Nethermind developed Libre Capital, a real-world assets tokenization platform that successfully tokenized Blackrock ICS Money Market Fund and Brevan Howard Master Fund, crossing US$150M+ AUM.
• Brevan Howard's WebN GroupcoreStrategic or Co-development PartnerCollaborated with Brevan Howard's WebN group alongside Nomura's Laser Digital to develop Libre Capital RWA tokenization platform, enabling institutional DeFi and tokenized finance.
• LayerZerocoreTechnology or IntegrationNethermind is a leading operator in LayerZero's Distributed Validator Network, helping secure cross-chain messaging across 100+ blockchain networks.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• ConsenSys: ConsenSys is the closest broad incumbent to Nethermind: it develops Besu (another major Ethereum execution client), operates Infura (node/RPC infrastructure), and offers MetaMask and an audit practice. Both companies compete for Ethereum protocol engineering talent and institutional Ethereum infrastructure deployments.
• Alchemy: Alchemy is a leading blockchain developer platform providing node infrastructure, APIs, and developer tools across Ethereum and other chains. While more focused on RPC/API infrastructure than Nethermind, both target the same institutional and developer customer base with infrastructure-as-a-service offerings.

Direct peers

• OpenZeppelin: OpenZeppelin is a leading smart contract audit and security tooling provider with a deeply comparable product overlap to Nethermind Security. Both serve DeFi protocols and institutions with audit, formal verification, and secure-contract libraries, and both participate in Ethereum-aligned security programs.
• Trail of Bits: Trail of Bits is a top-tier smart contract and blockchain security firm offering audits, formal verification, and applied research — directly overlapping with Nethermind Security's audit, formal verification, and ZK audit offerings. Both compete for institutional and protocol security engagements.
• Certora: Certora is a direct competitor in formal verification for smart contracts, providing the Certora Prover used by major DeFi protocols. Its specialization in mathematical correctness proofs maps directly onto Nethermind's Clear framework and formal verification services.
• ChainSecurity: ChainSecurity, now part of PwC, is a smart contract audit and formal verification firm founded by Ethereum core researchers. It competes head-to-head with Nethermind Security for institutional and protocol audit work, especially for high-value DeFi engagements.
• Quantstamp: Quantstamp is a smart contract security audit firm with a similar service portfolio to Nethermind Security, serving DeFi protocols, enterprises, and Layer-2 networks. Both compete on audit quality, turnaround time, and AI-assisted tooling.
• Sigma Prime: Sigma Prime is a blockchain security and infrastructure firm that develops Lighthouse (a major Ethereum consensus client) and conducts smart contract audits. It is comparable to Nethermind as both a client developer and security service provider in the Ethereum core stack.

Emerging players

• StarkWare: StarkWare is the core developer of the Starknet stack, where Nethermind contributes the Juno client and Voyager explorer. The two work alongside each other in the Starknet ecosystem but StarkWare sets the protocol direction that Nethermind's Starknet products implement.
• Erigon (Erigon.tech / Ledgerwatch): Erigon is a high-performance Ethereum execution client competing directly with Nethermind Client and Geth for validator and institutional deployments. Both projects target Ethereum's most performance-sensitive infrastructure operators.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights2 records

Customer concentration

• Xx.com/nethermindeth
• GitHubgithub.com/NethermindEth/nethermind
• YouTubeyoutube.com/@nethermindeth
• LinkedInlinkedin.com/company/nethermind/mycompany

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds3 records

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nethermind