Zama is a cryptography company building open source homomorphic encryption tools for developers.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.

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.

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.

Octra is an FHE blockchain network with support for isolated execution environments. The majority of the codebase is developed in languages such as OCaml, AST, ReasonML (the language for smart contracts and applications for interacting with the Octra blockchain network), and C++.

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.

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.

AMO Foundation is a platform that uses blockchain technology to manage car data. It collects vehicle operation information, ensures data security and privacy, and enables car owners to control and share this data.

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.

The Canton Network is the financial industry’s first privacy-enabled interoperable blockchain network designed for institutional assets, launched by a group of leading financial institutions, infrastructure providers, technology firms, and consultants. The Canton Network’s design overcomes the shortfalls of existing smart-contract blockchain networks and enables previously siloed systems in finance to become interoperable and synchronized in ways that had been impossible before. Offering the privacy and controls required for highly regulated organizations, the Canton Network creates a safe and sound environment in which assets, data, and cash can move freely across applications in real time, unlocking new efficiencies and powering innovation.

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.

Tornado Cash is a decentralized and non-custodial privacy solution. It improves transaction privacy by breaking the on-chain link between source and destination addresses. This is achieved through a smart contract that accepts ETH and other token deposits from one address, and enables their withdrawal from a different address.

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.

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.

Inco Network is an EVM Layer-1, utilizing fully homomorphic encryption (FHE) to enable composable and operable confidential states. Its fhEVM (FHE + EVM) makes it possible to write private smart contracts and perform computations on top of encrypted data without requiring its decryption. This innovation unlocks a wide range use cases with confidentiality components, such as card games, DID, private voting, dark pools, etc. - paving the way for a new era of possibilities.

Encifher adds a privacy layer on top of Jupiter, Solana’s liquidity aggregator, allowing users to trade without exposing sensitive transaction details like strategy or size.

Vanish is a Solana-based privacy trading solution. Whether users want to open positions without signaling or take discreet profits, Vanish offers execution privacy that no other platform can provide.

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.

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.

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.

URnetwork is a privacy VPN solution where URnetwork uses VPNService to route device traffic to provider devices. Traffic is encrypted using open source network standard protocols.

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.

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.

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.

Unlink is the dark mode for cryptocurrency, protecting the privacy of every blockchain transaction in one click.

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.

Bagel is a privacy-first, self-hosted Solana domain and wallet solution that allows users to receive funds through unique invisible addresses.

Fairblock can be used for front-running protection, private limit orders/intents, private voting/governance, sealed-bid auctions, randomness generation, and censorship-resistant sequencers in the Cosmos and soon in the Ethereum ecosystem, modular ecosystem (Celestia), Layer 2s (Optimism, Scroll, Eclipse), and cross-chain infrastructures and applications (Axelar, Squid) to protect the contents of the transactions before execution. Our goal/value is empowering users and protocols with the optional freedom of encrypting their transactions in order to protect them against various forms of malicious strategies and enable decentralized applications which are not previously possible.

Holonym is a privacy-preserving passport for Web3. It enables users to perform anonymous "KYC" and prevent Sybil attacks. It is also constructing the necessary infrastructure for decentralized wallet recovery.

zkMe is a decentralized Web3 credential network that leverages the power of zero-knowledge proofs to enable secure and private credential issuance and verification. ZkMe enables users to selectively disclose their credentials to authorized parties without compromising their privacy, granting them full control over their digital identities. Users can create and manage their digital identities without the fear of their personal information being exposed. The protocol has potential use cases in various industries, including anti-sybil protection for fair airdrops, anonymous web data attestation for GameFi integrations, and private KYC compliance for DeFi.