State of Privacy

Privy builds authentication, authorization and data control tooling so developers can deliver amazing products that keep users safe.

Passport proving protocol using zk-SNARKs. Changed its name is to Self Protocol

Swiss VPN provider with encrypted email and online storage

Psy is a revolutionary blockchain delivering internet-scale performance, radical user privacy, and an agentic, programmable future.

Puma is a mobile browser and wallet for the Web3 ecosystem. Private by design.

Crypto Exchange

Private Prediction market built on Arcium

Qelva is a privacy-native identity and transaction layer built for Solana. It introduces a seedless, multi-persona identity system combined with an intent-based execution model to eliminate the exposure of a user’s real wallet on-chain. All cryptographic keys are generated and stored locally, while the architecture separates identity, intent, and execution to ensure strong metadata minimization. Qelva uses a relayer-based private execution pipeline, where user intents are validated off-chain and executed on-chain by a relayer, breaking the direct link between users and their transactions. The system incorporates Split & Delay obfuscation, persona-scoped wallets, and non-custodial authentication (username + PIN) to provide lightweight but practical privacy for everyday Solana usage. Qelva is designed for users and developers who want private transfers, persona separation, on-chain activity obfuscation, and a secure identity layer without seed phrase exposure or centralized trust. It serves as a foundation for privacy-preserving wallets, dApps, and automated systems on Solana.

Establish Trust and Identification via Sybil resistant DIDs and KYC/AML natively on-chain

a free and open-source, security-oriented operating system for single-user desktop computing

Quickex is privacy-oriented exchange service for users and cross-chain swaps provider for business. No-KYC exchanges, best rates, low fees.

Quilibrium, the decentralized MPC platform as a service

Private Transfers, Unbreakable Privacy Military-grade cryptography meets Solana's speed. Choose your privacy level: break sender links or hide everything.

Private transfers and DeFi infra for Ethereum, Polygon, Binance Smart Chain and Arbitrum.

DeFi privacy wallet