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.

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.

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.

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.

MarsCat is a P2P-based decentralized connection network and Web3 application engine. It provides decentralized applications with a privacy-first, serverless, and scalable communication environment.

Canton Network is a public blockchain with institutional-grade privacy that features a highly configurable privacy-preserving mechanism at its core. Its on-chain tokenized assets are massive, and its proven institutional-grade scale synchronizes previously siloed systems with the configurable privacy and control needed to unlock asset liquidity in the tradfi and crypto ecosystems. Governed by the Canton Foundation and with the participation of global financial institutions, Canton enables real-time, secure synchronization and settlement across multiple asset classes on a shared, interoperable infrastructure. Originally developed by Digital Asset, the network is now open-source, powered by its native token, Canton Coin, and supports decentralized governance and collaborative application development.

Zcash Open Development Lab is a self-custody privacy finance platform designed to expand ecosystem interoperability through collaboration and bring protected ZEC transactions to mainstream global markets.

Loyal is a privacy-preserving decentralized intelligence network

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.

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.

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.

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.

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.

Zama is a crypto privacy protocol that adds a layer of confidentiality to public blockchains. Homomorphic encryption (FHE) is a technology that enables processing data without decrypting it. This can be used to create private smart contracts on top of public, permissionless blockchains, where only specific users would be able to see the transaction data and contract states.

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.

Beldex is a privacy-based ecosystem comprising of privacy-first decentralized applications, such as BChat, BelNet, the Beldex Browser, the Beldex Privacy Protocol, and the Beldex Bridge.

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.

Nym is a privacy platform that provides strong network-level privacy against sophisticated end-to-end attackers, and anonymous access control using blinded, re-randomizable, decentralized credentials. It protects privacy at the network layer by encrypting and relaying users' internet traffic through a multi-layered network called a mixnet. In each layer of the mixnet, mix nodes mix users' internet traffic with that of other users, making communications private and hiding metadata such as IP address, who they are talking to, when and where, and more.

Umbra is the transaction privacy protocol on Solana. Whether users make personal payments, transfers, or transactions, Umbra ensures that their financial flows are private and secure.

Anyone is building the internet-routing DePIN in the world: a modular privacy layer for any application to use seamlessly. Offering low requirements to run a relay and out-of-the-box solutions, Anyone provides a unique SDK that allows coders to connect any app to the network with just two lines of code. Their network management and optimized circuits ensure efficient performance.

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.

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.

AI Cross Matrix (ACM) is a privacy-focused financial protocol built on zero-knowledge proofs (ZKPs), ring signatures, and AI-based path obfuscation mechanisms. and is committed to enabling decentralized, cross-chain, and untraceable asset transfers. Designed to be the foundational layer of open and secure Web3 finance.

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.

Polygon Miden is the Edge Blockchain grants applications the power to scale with public and private transactions. With edge execution and self-custodied state control, users keep full control of their data and transaction details. Miden enables safe smart contract development with Rust and built-in account abstraction, while also minimizing attack surface with native asset storage for user accounts.

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.

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.

Fhenix is the 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.

Beam is a privacy-centric cryptocurrency powered by the Mimblewimble protocol. Unlike Monero or Zcash, MimbleWimble coins enforce privacy on a protocol level, rather than adding layers on top of the original blockchain to achieve privacy. This reduces the load and data stored on the blockchain, which leads to greater scalability.

Concordium is a proof-of-stake blockchain with identification built into the protocol to meet regulatory requirements, while delivering a user-friendly platform that can handle smart contracts. It utilizes zero-knowledge-proofs (ZKP) to allow parties to verify information without exchanging or storing that information on-chain, other than hash functions, so users can trust that their confidential business will not become anyone else's business. Concordium's unique ID disclosure mechanism enables regulators to revoke privacy and identify suspected bad actors and illegal transactions.