List of Privacy Pool companies in Web3 (2026)

MIST Chamber is a privacy pool protocol on Starknet that breaks the on-chain link between sender and recipient using zero-knowledge proofs and pooled deposits. Senders deposit tokens with a claiming key; recipients produce a ZK proof of ownership to claim funds on any supported chain via cross-chain adapters. Supports ETH, USDC, USDT, and DAI with configurable compliance for jurisdiction-specific requirements.

MIST Hidemi is a consumer application for private USDC transfers across multiple blockchain networks. Users generate a shareable payment link to receive USDC; senders pay from any supported chain without seeing the recipient's wallet address or history. Withdrawals use Groth16 zero-knowledge proofs to prevent deposit-withdrawal linkability. All transactions go through on-chain smart contracts with no custodial control by MIST. Authentication uses WebAuthn passkeys with device biometrics, requiring no seed phrases or account registration. Built on the Privacy Pools compliance model, users prove transaction innocence without revealing identity. Supports Ethereum, Base, Arbitrum, Optimism, Polygon, and StarkNet.

MISTzap is a QR code-based private payment application on Starknet. Users scan or share QR codes to send and receive multiple token types without exposing wallet addresses or transaction history. Payments are gasless and processed through the MIST zero-knowledge proof protocol, keeping sender and recipient wallets unlinkable. Built as a Next.js web application using the Starkzap SDK for Starknet account abstraction.

Typhoon is a privacy pool on Starknet that breaks the on-chain link between deposit and withdrawal addresses through zero-knowledge proofs. Users deposit supported tokens into shared pools and withdraw to any wallet with cryptographic proof of ownership, with Paymaster integration enabling gasless withdrawals to empty wallets. Anonymous accounts allow users to interact with Starknet DeFi, NFTs, and governance without linking activity to their main wallet.

Tongo is a privacy pool on Starknet that wraps ERC-20 tokens with ElGamal encryption for confidential transfers. Users fund encrypted balances, transfer hidden amounts, and withdraw back to standard tokens. The protocol uses zero-knowledge proofs over the Stark curve with no trusted setup, and supports optional auditor keys for regulatory compliance.

Privacy Cash implements a zero-knowledge proof privacy protocol on Solana, enabling shielded deposits and unlinkable withdrawals through Merkle tree commitments. The protocol processes deposits into privacy pools and facilitates withdrawals to arbitrary recipient addresses using zk-SNARK cryptographic proofs, maintaining transaction confidentiality while supporting selective disclosure for compliance requirements.

A privacy middleware that integrates with Solana DeFi applications through off-chain co-processors, enabling encrypted swaps, transfers, and yield strategies using pointer-based execution and threshold cryptography.

Merces is a white-label private account system for stablecoins on public blockchains. It uses MPC-backed oblivious data structures and collaborative ZK proofs to keep sender, receiver, and transaction amounts confidential. Account balances are stored as secret shares across independent MPC nodes, and coSNARK proofs verify transaction integrity without revealing underlying state.

Cloak Privacy Pool provides privacy-preserving exit routing on Solana through zero-knowledge proof verification and UTXO-style commitment architecture. The protocol operates a shared pool where users deposit SOL to generate cryptographic commitments recorded in an append-only Merkle tree, then withdraw to unlinked addresses through SP1 Groth16 proofs verified on-chain. The system maintains an indexer service for Merkle proof generation, relay infrastructure for transaction submission, and optional proof-of-work prioritization mechanisms enabling users to earn fees by mining wildcard claims during network congestion. Developer integration utilizes a TypeScript SDK providing unified methods for deposit flows, proof generation, and multi-recipient withdrawals.