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.

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.

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.

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.

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.

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.

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.

Tari is a blockchain protocol focused on digital assets, built in Rust, private by default, open source, and architected as a merge-mined sidechain with Monero. It enables creators to design new types of stories and experiences.

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.

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.

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.

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.

AlphaSwap is the DEX that facilitates public and private token swaps of any tokens on the Aleo blockchain. Users can create or contribute to liquidity pools (public or private) and earn fees from swaps.

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.

Built on Bittensor (subnet 65), TPN is designed to transform private internet access by turning global IP addresses into a digital commodity, offering a decentralized VPN.

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.

HopNetwork is developing a decentralized, fast VPN that breaks down the barriers of Internet censorship.

Hinkal is a ZK-based solution that provides a private smart contract wallet experience, allowing users to participate in their favorite dApps directly from their private addresses without the need to withdraw assets for obfuscation. Hinkal enables privacy of transactions and assets across core DeFi apps and functions, including trading, farming, staking, and lending through the use of stealth addresses and with high degree of compliance.

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.

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.

Super Protocol uses the latest blockchain and Trusted Execution Environment (TEE) developments to create a universal, decentralized protocol for distributed confidential computing. It offers an alternative to traditional cloud service providers in the Web3 space, and makes it possible for everyone to contribute to the development of innovative technologies for the future Internet. Super Protocol is built as a massive ecosystem of interoperable solutions and services, including computational resources, databases, web-services, ready-to-use applications, confidential data sources, and more.

Zecrey is a zk-rollup based Layer 2 privacy protocol that brings cross-chain support and privacy to digital assets. It supports users in managing, swapping, and bridging assets across multiple chains, all while ensuring that transactions remain private and protected from malicious arbitrageurs.

Distilled AI is a decentralized protocol offering infrastructure for developers to access confidential computing, private data handling, distillation protocols, data DAOs, and secure access management. With Distilled AI, developers can build advanced applications that require AI agents to not only learn from private data in both individual and collective settings with absolute data privacy, but also autonomously perform a wide range of actions in Web3.

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.

Start9 is a privacy solution based on the Bitcoin network that aim to natural human right and must be enforced by technology. Start9 design simple personal servers that run self-hosted, open source applications.

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.

Zano, a privacy-centric blockchain ecosystem that was launched in 2019. Zano transactions are untraceable, leveraging ring signatures and stealth addresses. Furthermore, the Zarcanum hardfork will incorporate Confidential Assets, privacy tokens that operate on the Zano blockchain. These assets share the same privacy features as native Zano coins, allowing other developers to run their privacy-oriented projects without the overhead of maintaining their own blockchains, dealing with consensus issues, or other complexities of network operation. Zano's security is fortified by a unique hybrid PoW-PoS consensus algorithm, which is also applicable to assets. In addition to these features, Zano supports on-chain aliases, escrow contracts, and has a built-in staking system with no minimum requirements or time locks. It offers numerous features for both users and developers.

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.

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.