Top 50 Zero Knowledge Proof in Europe

Outdid offers a private identity verification solution that utilizes Zero Knowledge Proofs to authenticate government-issued documents directly on users' devices, eliminating the need for third-party intermediaries. This approach addresses the growing demand for secure user verification while minimizing data liabilities for online platforms and protecting users' sensitive information.

The startup develops a blockchain platform utilizing zero-knowledge proofs to ensure transaction privacy and security. This technology enables web services and financial clients to maintain ownership of tradable applications while safeguarding property rights and user privacy.

Aztec has developed a trading protocol for Ethereum that facilitates private transactions on the public blockchain using zero-knowledge proofs. This technology addresses the need for confidentiality in blockchain transactions, allowing users to trade assets without revealing transaction details to the public.

Accountable provides a data verification platform that utilizes Zero-Knowledge Proofs and secure cryptographic methods to ensure transparency while maintaining user privacy in crypto lending. The platform addresses the lack of trust in financial data by offering real-time monitoring of reserves and liabilities, enabling users to verify asset backing and financial health.

Vlayer provides a trustless verifiable data infrastructure that utilizes zero-knowledge proofs to integrate on-chain and off-chain data into Solidity smart contracts. This technology enables developers to create secure decentralized applications while ensuring data authenticity and privacy without relying on centralized sources.

The startup operates a decentralized identity platform that utilizes cryptography and zero-knowledge proofs to provide verifiable digital credentials. This technology ensures individuals maintain privacy, ownership, and control over their identity during digital onboarding and KYC processes.

Keyless provides a biometric authentication solution that utilizes Zero-Knowledge Biometrics™ to verify user identity without storing any biometric data, ensuring privacy and compliance with regulations like GDPR and PSD2. This technology significantly reduces account takeover fraud by up to 73% and operational costs by 81%, while enabling fast authentication in under 300 milliseconds across over 1,000 devices.

Swisstronik is a hybrid blockchain platform that enables Web 3.0 and traditional companies to develop KYC, AML, and DPR-compliant applications using zero-knowledge proofs (zk-SNARKs) and Intel SGX for enhanced data privacy. The platform addresses the challenge of regulatory compliance in cross-border transactions while ensuring user data protection and facilitating faster application development.

Telos offers a third-generation blockchain platform that utilizes the SNARKtor protocol for decentralized recursive proof aggregation, enhancing scalability and efficiency through zero-knowledge technology. This platform addresses issues of high latency, network congestion, and energy consumption, enabling rapid transactions at 15,000 TPS with minimal gas fees.

The startup offers a blockchain-based platform that utilizes zero-knowledge privacy to facilitate on-chain compliance transactions and protocol-agnostic KYC processes. This solution enables clients to access blockchain-backed trading pools while ensuring privacy and regulatory adherence, enhancing liquidity in secondary markets.

Certifaction offers a privacy-first e-signing solution that utilizes zero document knowledge technology, ensuring that documents are processed locally and encrypted end-to-end, preventing any access to their content. This approach addresses the need for secure digital signatures while maintaining compliance with eIDAS and GDPR regulations, making it suitable for sensitive transactions in various industries.

Provides a regulated, cross-chain DeFi platform for tokenizing, trading, and managing illiquid real-world assets using a zero-knowledge privacy layer. Enables asset owners to reduce reliance on intermediaries while offering retail and institutional investors access to previously inaccessible, cash-flow-generating investments through non-custodial wallets and integrated banking services.

QED is a zk-native blockchain protocol that enables high-speed, trustless computation with a capacity of over 1,000,000 transactions per second, utilizing a novel state model for massively parallel transaction proving. It allows Web2 developers to create smart contracts in popular programming languages like JavaScript and Python, addressing the scalability challenges that hinder blockchain adoption.

Vawlt is a multicloud storage platform that orchestrates data across various cloud providers, ensuring disaster recovery, backup, and ransomware protection through zero-knowledge encryption and fault-tolerant architecture. This solution addresses the risk of data loss and cyberattacks by providing a secure, cost-effective way for organizations to manage their data lifecycle without vendor lock-in.

The startup develops multi-party computation technology that enables secure and decentralized joint computation of functions while keeping individual inputs private. This platform enhances digital asset security for businesses in the crypto space by maintaining computational complexity and scalability.

TACEO provides a protocol for encrypted computation using Multiparty Computation (MPC) and coSNARKs, enabling secure processing of sensitive data across decentralized applications. This technology addresses the need for private shared state in blockchain environments, ensuring data confidentiality while maintaining transparency and integrity.

Arcium is a decentralized computing network that utilizes Multiparty Computation (MPC) and Fully Homomorphic Encryption (FHE) to enable applications to process data without ever revealing its contents. This technology allows organizations to leverage sensitive data securely, enhancing privacy and control while maintaining data usability across various digital interactions.

Zerolytics provides a data-driven platform that utilizes financial digital twins and purpose-built analytics to evaluate the credibility of companies' net zero commitments and forecast their emissions pathways. The platform enables asset managers to assess the financial implications of capital expenditure decisions, ensuring alignment with net zero targets while optimizing competitive returns.

Snowpack provides a zero-trust network overlay that ensures users' digital assets remain invisible and secure from unauthorized access, even from Snowpack itself. This technology enables organizations to cloak their IT infrastructure and sensitive web services, preventing exposure to cyber threats while facilitating anonymous data sharing among trusted groups.

Exact Comms provides a contactless proof of presence solution that utilizes Bluetooth tags and beacons to automate attendance tracking and compliance verification in facilities management. This technology eliminates manual errors and ensures accurate, real-time data collection, significantly reducing management time and improving operational efficiency.

The startup develops artificial intelligence governance software that provides certifiable and tamper-proof auditing for organizations utilizing AI models. This technology ensures compliance with regulatory requirements, enabling businesses to implement AI solutions with confidence.

Carbontribe develops a Web3-based carbon removal standard that utilizes AI-driven digital monitoring, reporting, and verification (dMRV) to create traceable carbon removal digital assets. This approach addresses the inefficiencies and fraud associated with traditional carbon credits by ensuring tamper-proof records and scientific reproducibility through blockchain technology.

Zama develops open-source solutions utilizing Fully Homomorphic Encryption (FHE) to enable secure processing of encrypted data for blockchain and AI applications. This technology allows data scientists to run models on sensitive information without exposing the underlying data, ensuring privacy while maintaining functionality.

Nillion provides a decentralized computing network that utilizes cryptographic techniques to securely process and store sensitive data, enabling the development of privacy-enhancing applications across various industries. By distributing trust and employing Information-Theoretic Security, Nillion addresses the risks associated with centralized data control, facilitating secure AI training and confidential data management.

Blocksense is a decentralized protocol that utilizes zero-knowledge rollups and Merkle trees to efficiently publish and verify a wide range of Oracle data feeds in a single transaction. It addresses high costs and slow processes in traditional oracle networks by enabling anyone to create secure oracles and access data feeds on any blockchain.

Agora is a citizen network that utilizes Zero Knowledge Proof cryptography and a bridging-based ranking system to facilitate secure, authentic discussions on divisive political and social issues. By enabling participation through biometric verification, Agora fosters meaningful dialogue while ensuring user privacy and mitigating the effects of polarization in democratic societies.

BitcoinOS enables fast and low-cost transactions on the Bitcoin network by implementing zero-knowledge proofs and supporting smart contracts through various virtual machines like EVM and CosmWasm. This technology transforms Bitcoin from a store of value into a versatile platform for decentralized applications, addressing the limitations of scalability and programmability inherent in the original Bitcoin protocol.

The startup has developed a zero-knowledge-proof system for secure verification of financial transactions, enabling users to perform balances, transfers, and staking with a native token. This platform facilitates the deployment of proof systems that function similarly to smart contracts, ensuring privacy and integrity in financial operations.

Albus Protocol provides a decentralized identity management platform that utilizes Zero-Knowledge Proofs (ZKP) to enable users to verify their identities while maintaining privacy and compliance with KYC, AML, and GDPR regulations. This solution allows businesses to securely manage user data without centralized storage, reducing risks and facilitating monetization opportunities through a revenue-sharing model.

Brick Towers provides a non‑custodial, programmable finance platform that lets users manage self‑custodied assets and earn risk‑adjusted yields across multiple blockchains. Its urble mobile app offers biometric‑secured, goal‑based savings plans that automatically allocate funds to vetted DeFi vaults, while the Business Suite gives SMEs and institutional treasurers real‑time treasury monitoring, automated allocation recommendations, and one‑click staking. The company also offers an advisory studio to design and launch custom DeFi protocols with zero‑knowledge proofs and compliance‑ready architecture.

Holonym Foundation provides a decentralized infrastructure for creating Human Keys, enabling users to derive high-entropy keys from biometrics and other memorable data for secure identity verification. Their solutions, including the Silk wallet and Zeronym identity protocol, facilitate private transactions and proof of personhood in zero trust environments, enhancing individual privacy and security.

Mithril Security provides a framework for AI model development that ensures data confidentiality and model integrity through cryptographic proof and secure hardware, such as Trusted Platform Modules (TPMs). This technology addresses the need for provenance traceability in AI, allowing users to verify that models are trained on trustworthy and unbiased datasets.

Sismo.io provides a single sign-on solution, Sismo Connect, that enables applications to access user data stored in a secure Data Vault using zero-knowledge proofs for privacy-preserving authentication. This technology allows for selective disclosure of anonymized personal data, facilitating secure interactions between users and applications without compromising user privacy.

The startup specializes in cryptographic protocols, focusing on polynomial commitment schemes, proof composition, ZKML, and signature schemes to enhance the security of artificial intelligence applications. By providing robust cryptographic solutions, the company enables clients to implement trustworthy AI systems that protect sensitive data and ensure integrity.

Zero Labs offers a digital platform that enables individuals and businesses to purchase renewable energy and verify their usage through blockchain-based Renewable Energy Certificates (RECs). This system simplifies the process of decarbonization and provides transparent proof of sustainable energy consumption, addressing the complexity and cost of reporting carbon-free operations.

Forkbomb provides a multiplatform cryptographic stack and microservices for digital identity and blockchain interoperability, utilizing post-quantum cryptography and zero-knowledge proofs. The company enables secure data transactions and identity verification across various platforms, addressing the need for robust security in decentralized applications and smart contracts.

Certificall offers a mobile application that captures timestamped and geolocated photos and videos, creating legally admissible digital proof certified in real-time under eIDAS regulations. This platform enhances trust and reduces fraud by providing an immutable record of events and conditions for industries like insurance and construction.

Naoris Protocol provides a decentralized security layer utilizing post-quantum cryptography and a decentralized Proof of Security (dPoSec) consensus mechanism to validate device operations in real-time. This technology addresses vulnerabilities in centralized cybersecurity systems by creating a self-protecting trust mesh that eliminates single points of failure across diverse digital environments.

Hakata provides a modular solution that utilizes zero-knowledge proofs and verifiable credentials to enable Web2 and Web3 businesses to ensure user privacy while maintaining compliance with global regulations such as KYC and AML. By decentralizing the storage of identity credentials in user wallets, Hakata enhances data sovereignty and facilitates secure, privacy-preserving data exchange.

The startup develops a decentralized platform that provides point-to-point quantum-resistant authentication for various operating systems and IoT stacks. This technology enables network providers to implement a secure and scalable authentication service for sensor networks and complex IoT systems, enhancing data integrity and user trust.

LZero Analytics offers a cloud-based platform for simulating private blockchain networks, enabling developers to create realistic test environments with configurable parameters and enterprise-grade security. This solution addresses the complexity and high costs associated with setting up isolated blockchain environments, allowing organizations to efficiently test and optimize their decentralized applications.

The startup develops authentication and authorization software that utilizes smartphone-based cryptography and a private blockchain to create secure digital identities. This technology eliminates the risks associated with remote work by providing passwordless authentication, effectively preventing credential phishing and password-based attacks.

TERYA transforms crowdsourced nature data into AI-verified, on-chain proof-of-nature. This creates verifiable natural assets for financing, trading, and conservation, addressing the lack of ground-truth data in the natural world.

Whale is a decentralized peer‑to‑peer trading protocol that lets users swap EVM‑compatible tokens directly from their wallets using smart‑contract escrow for atomic settlement. The platform combines an off‑chain order‑matching engine with on‑chain settlement, optional zero‑knowledge proofs for confidential trades, and multi‑chain support, while providing wallet‑agnostic UI and encrypted messaging. It targets crypto traders and DeFi participants seeking non‑custodial, private exchanges.

Provably combines Zero-Knowledge protocols with AI agents to deliver cryptographically verifiable answers to database queries, ensuring users can trust the results derived from private data. This technology addresses the challenge of AI explainability by providing near-instant verification of AI outputs, eliminating the need for manual validation processes.

LutinX offers a blockchain-based platform for securing intellectual property and proving authorship. It creates immutable digital records with verifiable timestamps and proof of ownership, simplifying copyright registration and global defense against infringement.

ROOTKey provides modular digital security solutions utilizing blockchain technology, zero-knowledge proofs, and zero-trust frameworks to ensure data integrity, ownership, and authenticity. The platform addresses the challenges of data breaches and identity theft by offering customizable identity management and secure data sharing services tailored to the unique needs of businesses.

Heliax develops open-source protocols for decentralized counterparty discovery and multi-chain atomic settlement, utilizing zero-knowledge cryptography to enhance user privacy and financial sovereignty. The company addresses the need for transparent and secure financial systems that empower individuals against exploitative practices in traditional finance.

Enclave Networks provides a Zero Trust Network Access solution using an overlay mesh network that enables secure, direct connectivity between applications, devices, and users without the need for traditional VPNs or open firewalls. This technology eliminates the risks associated with exposed network perimeters, allowing organizations to maintain strict access controls while simplifying network management and deployment.

The startup develops a blockchain-based platform for credential protection and verification, ensuring that all issued certificates are immutable and free from errors. This technology enables users to securely share their educational achievements globally, addressing the need for reliable and tamper-proof verification of credentials.