FLock.io aims to build a decentralized, privacy-preserving solution for Artificial Intelligence. It has proposed a research initiative called Federated Learning Blocks (FLocks for short), which uses blockchain as a coordination platform among data holders to conduct Machine Learning while keeping data local and private. By replacing the central entity that collects data and organizes machine learning with blockchain, FLocks aims to empower users to mine insights from their own data and monetize at their own discretion.

Seismic is a blockchain encrypted at the protocol level with encrypted global state, memory access and data flow. Seismic's protocol ships as a set of sequencers that plug into any chain.

Arcium is a parallelized confidential computing network. It provides developers and applications with a trustless, verifiable, and efficient framework to run encrypted computations. Arcium aims to bring confidentiality to every on-chain application and become the global computing network for the decentralized internet. Multiparty computation eXecution Environments (MXEs) are the backbone of the Arcium Network. They combine Multiparty Computations (MPC), Fully Homomorphic Encryption (FHE), Zero-Knowledge Proofs (ZKPs), and more to enable encrypted computations.

Aleo is a developer platform for building fully private, scalable, and cost-effective applications. It uses zero-knowledge cryptography to move smart contract execution off-chain, enabling a diverse range of decentralized applications that are both entirely private and can scale up to thousands of transactions per second.

Anoma is an intent-centric architecture, introducing a new paradigm for building infrastructure layers and a new operating system for decentralized applications. Anoma’s intent-centricity introduces novel primitives that allow existing web2.5 dApps to be fully decentralized, such as optimistic and ZK rollups, DEXs, NFT marketplaces, or public goods funding applications like Gitcoin.

Zcash is a privacy-preserving cryptocurrency that provides anonymous value transfer using zero-knowledge cryptography. The protocol offers the option to make transactions either shielded, which will be completely anonymous, or transparent, which will be visible on the Zcash blockchain.

Raze Network is an EVM-compatible privacy protocol. It is built as a native privacy layer to provide end-to-end anonymity for the entire DeFi and Web3.0 stack. Raze Network utilizes zkSNARKs on the Zether framework to create a second-layer decentralized anonymous module. The goal of Raze Network is to enable multichain privacy-preserving payment and trading systems while protecting asset and behavior transparency from surveillance.

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.

Brave is a privacy-focused internet browser that aims to change the digital advertising relationship between customers and advertisers. BAT is the native token of the platform, which is used as a payment mechanism between advertisers, publishers, and users.

Multiple Network is a Web3 Privacy Acceleration solution for AI that provides privacy protection and data acceleration services based on P2P and SD-WAN technologies. By aggregating the bandwidth of distributed nodes, it offers anonymous communication and encrypted transmission services. Multiple Network provides higher bandwidth and lower latency, widely used in AI model invocation, search engine interactions, and the encryption and acceleration of large-scale sensitive data, enhancing the efficiency and security of AI model training and inference.

Nesa is the lightweight Layer-1 executing critical AI inference on queries that require a high degree of privacy, security, and trust using ZKML on-chain.

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.

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.

Fhenix is the first confidential blockchain powered by fully homomorphic encryption. Through the usage of fhEVM, Fhenix enables Ethereum developers to seamlessly build encrypted smart contracts and perform encrypted computation of data, all while using Solidity and other familiar, easy-to-use tools.

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.

The Oasis Network is a Layer 1, proof-of-stake, decentralized network designed to support the next generation of blockchain applications. It is incredibly versatile, agile, and customizable. Moreover, it supports confidential smart contracts, enabling sensitive data to be used by Dapps and unlocking new use cases and applications of blockchain technology.

Venice is a privacy-focused artificial intelligence platform offers services such as generative conversation and image creation, but it does not hold user data. The platform uses blockchain for permissionless payment, as well as web3 infrastructure for local browser storage and end-to-end encryption.

Hana Network is a startup developing hyper-casual finance with social network effects and has launched the deposit and withdrawal solution Hana Gateway. Hana Network aims to achieve user-driven distribution through existing open social networks.

RAILGUN is a privacy system built directly, enabling users to interact directly with DEXs and other DeFi applications. Individuals can engage in cryptocurrency and DeFi-based activities, ensuring financial freedom without worrying about being spied on by anyone.

Ternoa is a multi-network and cross-layer protocol. Combining confidential computing and decentralization, Ternoa enables users to encrypt data off-chain with on-chain access control of keys, opening the door to a wide array of innovative use cases.

Monero is an open-source, privacy-oriented cryptocurrency that was launched in 2014. Its blockchain is intentionally configured to be opaque, making transaction details such as the identity of senders and recipients and the amount of each transaction anonymous by disguising the addresses used by participants.

PlatON is a next-generation Internet infrastructure protocol based on blockchain and supported by a privacy-preserving computation network. By combining blockchain and privacy-preserving computation technologies, PlatON is creating a decentralized and collaborative AI network and global brain to promote the democratization of AI and enable the safe development of artificial general intelligence.

Singularity is a compliant institutional DeFi access layer that provides access to popular protocols for institutional on-chain participants with commercial confidentiality. Users will have their wallet addresses obfuscated whilst leveraging existing DeFi liquidity. Singularity uses the state-of-the-art UltraPLONK proof system with zero-knowledge circuits based on Noir.

Automata Network is a modular attestation layer that extends machine-level trust to Ethereum by leveraging optimistic rollups and zero-knowledge proofs in its Proof of Machinehood approach. The application-specific rollup allows on-chain verification for out-of-protocol computation, which creates an unbroken chain of trust that extends upwards through the entire Web3 stack.

Gateway is building a private data layer with encrypted decentralized storage and native access control capabilities. By giving sovereignty to users to share their data with requesting parties, Gateway opens new access to private data that was previously inaccessible by blockchain networks, companies, LLMs, and various other stakeholders on the internet.

Dusk Network is the privacy blockchain for financial applications. Its mission is to enable enterprises of any size to collaborate at scale, meet compliance requirements and ensure that personal and transaction data remains confidential.

Stoffel is a virtual machine architecture designed specifically for secure Multi-Party Computation (MPC) applications. It provides a flexible and efficient foundation for executing MPC protocols while maintaining protocol agnosticism.

Iron Fish is a Layer 1 blockchain aiming to be the universal privacy layer for all of Web3. It uses zero-knowledge proofs (zk-SNARKs) and the highest industry standards for encryption, enabling users to have fully private transactions—a true SSL layer for all blockchains.In March 2025, Base acquired the Iron Fish development team to develop privacy protection primitives for Base. The specific acquisition amount was not disclosed. This acquisition is limited to the Iron Fish team and does not involve the Iron Fish network, tokens or its technology. The Iron Fish project will remain independent and is not affiliated with Coinbase or Base.

Ten is a Layer 2 solution for Ethereum that provides privacy and scalability. It ensures that inputs, contract states, and executions are always encrypted. Obscuro's programmable privacy allows developers to decide what they want to keep private and what they want to make public at a granular level. R3, a global enterprise software firm, incubated Ten.

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.