List of Privacy Pool companies in Web3 (2026)

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.

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.