Nockchain is a proof-of-useful-work blockchain that sits atop novel ZKVM. Leveraging the beautiful simplicity of Nock, It built the first combinator-based virtual machine that can be efficiently used with Zero-Knowledge Proofs. Nockchain is a high-throughput chain that provides proofs of computation, storage, and a new namespace.

Espresso is a global confirmation layer that provides L2 chains with fast, reliable transaction confirmations backed by BFT consensus. Espresso's confirmation layer can prevent sequencer equivocation, protect against reorgs, and reduce finality risk for solvers in intent-based systems. Its versatility means chains can also use it as a decentralized sequencer and low-cost data availability layer.

Succinct is building a decentralized prover network so that anyone can build blockchain applications and infrastructure secured by cryptographic truth, not trust. Succinct unifies the proof supply chain, providing highly available proof generation infrastructure with best-in-class pricing, for rollups, coprocessors and other applications using zero-knowledge proofs.

Aztec Network is the first private ZK-rollup on Ethereum, enabling decentralized applications to access privacy and scale. Its industry-standard PLONK proving mechanism is used by the leading zero-knowledge scaling projects, ensuring the security of its rollup.

PolyHedra is an infrastructure for Web3 Interoperability, featuring cutting-edge zero-knowledge proof systems. It opens up the design space for Web3 through highly scalable middlewares, such as ZK-NFT containers, DAO/DAC systems, and decentralized Web3 identities.

By utilizing zero-knowledge proofs, Boundless enables blockchains to verify the correctness of calculations without the need for re-execution. This ground-breaking feature, known as verifiable computing, allows actions performed by a single node in a network to be validated inexpensively by each node.

StarkNet is a permissionless, decentralized Validity-Rollup (also known as a "ZK-Rollup"). It operates as an L2 network over Ethereum, enabling any dApp to achieve unlimited scalability for its computations without compromising Ethereum's composability and security. This is possible due to StarkNet's reliance on the safest and most scalable cryptographic proof system: STARK.

Fiamma is a verification network that specializes in zero-knowledge (ZK) proofs, striving to provide a secure, decentralized, and economically efficient solution for universal blockchain integration. At its heart, Fiamma is engineered to leverage the robust cryptoeconomic and network security value of Bitcoin via the integration with Babylon and implementation of BitVM2. This combination enables Fiamma to introduce ZK capabilities into the Bitcoin ecosystem and secure ZK use cases in Ethereum and beyond, enhancing the scope and effectiveness of ZK technology.

vlayer is a trustless verifiable data infrastructure powered by zero-knowledge proofs.

zkSync is a Layer-2 scaling solution that preserves the security properties of the underlying blockchain by leveraging the latest generation of succinct zero-knowledge proofs. All funds in zkSync are held in a smart contract on the mainchain, while computation and storage are performed off-chain. For each Rollup block, a state transition zero-knowledge proof (SNARK) is generated and verified by the mainchain contract. This SNARK includes the proof of the validity of every transaction in the Rollup block.

Nexus Network is a massively-parallelized proof mining network. It is a world-scale instantiation of the Nexus zkVM, designed to run at a trillion CPU cycles per second, given enough computing power connected to it. The Nexus zkVM (zero-knowledge virtual machine) is a modular, extensible, open-source, highly-parallelized, prover-optimized, contributor-friendly, zkVM written in Rust, focused on performance and security.

Manta Network is the multi-modular ecosystem for zero-knowledge (ZK) applications. Manta Atlantic, the fastest ZK L1 chain, brings programmable privacy to web3 through compliant on-chain privacy and identity. Manta Pacific, the unique L2 ecosystem for EVM-native ZK applications, provides a scalable and inexpensive gas-fee environment for ZK applications to deploy simply using Solidity. Together, Manta Atlantic and Manta Pacific deliver an unparalleled experience for the next generation of web3 application development and adoption with the applied usage of zero-knowledge cryptography.

Soundness Layer is a decentralized verification layer built on Walrus and Sui. It leverages zero-knowledge proofs to enhance data security, privacy, and blockchain scalability.

Chakra is a Bitcoin restaking protocol based on ZK proofs. It utilizes STARKs to prove staking events on Bitcoin and verifies proofs on layer-2 chains.

ZkCloud is a universal proving layer for ZK, an on-demand proving network aggregating proof demand that enables new applications utilizing provable compute to become economically viable by decreasing costs to a fraction of what’s available through standard proof outsourcing like AWS and GCP. It also ensures prover nodes can achieve the highest possible resource efficiency by aggregating workloads from across the industry for both scaling and privacy use cases, and many more to come.

Gasp is a L2 cross-rollup protocol, with the vision to make Ethereum the settlement layer for all cross-chain transactions. Gasp offers native cross-chain swaps without resorting to traditional bridges through the power of escape hatches which guarantee the withdrawal of user funds at all times, ZK proofs and decentralized sequencers.

Inference Labs specializes in developing infrastructure and products for AI on web3, and focuses on AI inference interoperating on the blockchain. The zero-knowledge proofs ensure privacy and security without compromising on speed or efficiency. User can verify the correctness of off-chain AI outputs without having to calculate them yourself.

Union is a yper-efficient interoperability protocol connects all blockchains and rollups, across any ecosystem. It's based on consensus verification and has no dependencies on trusted third parties, oracles, multi-signatures, or MPC.

Self Labs is building a scalable trust layer for the internet that puts privacy first. Focused on proving users’ identity and unique attributes without revealing personal data, the company’s open-source platform with Self Pass & Connect offers secure, decentralized verification for millions of users by leveraging zero-knowledge proofs and electronic passport NFC technology. Self Protocol supports global passport (174+ countries) and compliance standards necessary for a thriving digital economy.

Billions Network is a digital identity verification platform designed to offer a future where humans and AI can trust each other, including Sam Altman’s crypto project, World. The platform, which utilizes zero-knowledge proof tech, seeks to provide a scalable and secure method for verifying both human and AI identities.

Midnight Network is a data protection blockchain, where Developers and businesses can build decentralized applications that safeguard sensitive data, without sacrificing performance and regulatory requirements. Developers can build on Midnight in a novel and easy to use programming model based on Typescript, and zero knowledge (ZK) proofs.

Taiko is a decentralized Ethereum-equivalent ZK-EVM and general-purpose ZK-Rollup. Its purpose is to enable developers and users of dApps developed for Ethereum L1 to use them on Taiko without any modifications. Therefore, dApps can be quickly deployed to L2, preserving Ethereum's security while incurring lower transaction fees than on L1.

Three Protocol(Jobs3) is a No-KYC ZKP Pseudoanonymity, Neural Network AI and Tri-Signature DAOs for crypto marketplaces, whose objective is to establish a network of autonomous marketplaces rooted in blockchain technology. These marketplaces aim to facilitate Product, service and Real World Asset financial inclusion for individuals lacking traditional banking facilities, to use the latest Neural Network Artificial intelligence technologies to increase marketplace procurement efficiency, to enable the utilization of cryptocurrencies for transactions and to instate equitable governance via a Decentralized Autonomous Organization (DAO). The first platform, Jobs3, is set to emerge as a decentralized contender to existing employment marketplaces such as Upwork and Fiverr. Central to this project is the $THREE governance token, Neural Network machine learning, and ZKP pseudo-anonymisation alongside smart contract technology, which together will enable secure escrow services, efficient procurement of marketplace products, services, real world assets, DAO-facilitated dispute resolution mechanisms, and seamless cryptocurrency purchase transactions.

ZEROBASE is a real-time ZK prover network designed for speed, decentralization, and regulatory compliance. It generates ZK proofs within hundreds of milliseconds and ensures decentralized, fast consensus through its HUB ring-wake mechanism, enabling large-scale commercial use.

Ethproofs is a block proof explorer for Ethereum. It aggregates data from various zkVM teams to provide a comprehensive overview of proven blocks, including key metrics such as cost, latency, and proving time. Users can compare proofs by block, download them, and explore various proof metadata(size, clock cycle, type) to better understand the individual zkVMs and its proof generation process.

Orochi Network is a Verifiable Data Infrastructure designed to ensure data integrity and privacy through advanced cryptographic techniques. Orochi Network provides a secure infrastructure for processing and proving data without compromising confidentiality. This combination of cutting-edge cryptographic primitives allows users to trust the system’s outputs while keeping sensitive information protected, making it a powerful solution for applications requiring both transparency and privacy.

Kakarot is a zkEVM written in Cairo. It aims to allow users to leverage the scaling benefits of validity rollups while maintaining compatibility with the Ethereum ecosystem. Therefore, Kakarot can be used to run Ethereum smart contracts on Starknet.

RISC Zero is building a next-generation, scalable blockchain using zero-knowledge proof technology and RISC-V zkVM. Developers familiar with programming in Rust, Go, C++, and other standard programming languages can write on-chain decentralized applications.

Delphinus lab provides solutions for trustless computation and application SDK based on ZKWasm virtual machine. The ZKWASM (ZKSNARK virtual machine that supports Web Assembly) serves as a trustless layer between rich applilcations running on WASM runtime and smart contracts on chain. The company’s mission is to construct a zkWASM cloud suite that eases the integration of more generic web applications into the web3 environment using the rollup as an application approach.

Zypher Network is a ZK computing Layer for Trustless AI Agents. Its middleware solutions (Proof of Prompt, Proof of Inference) guarantee AI agent data consistency & integrity without public knowledge. With a ZK-driven application infrastructure, Zypher is delivering secure, autonomous mission-critical and financially sensitive on-chain operations for human and AI agents.