List of Decentralised Identity companies in Web3 (2026)

Web3 Domain Registration provides blockchain-based domain names through Unstoppable Name Service (UNS) and Crypto Name Service (CNS) smart contracts, enabling cryptocurrency address replacement and decentralized website hosting. The system operates on Polygon and Ethereum networks with permanent ownership and zero renewal fees.

A decentralized identity verification protocol on Solana that enables users to prove their humanity through privacy-preserving cryptographic methods without disclosing personal information. The system provides anti-bot protection for applications while maintaining user anonymity through zero-knowledge proofs and secure verification mechanisms.

OfflineID is a universal decentralized identity system that connects devices, wallets, and social ties into a single, censorship-resistant profile. The system enables users to maintain portable social profiles that function without internet connectivity through privacy-first, encrypted peer-to-peer interactions and offline discovery capabilities.

ZKPassport Mobile App implements NFC-based identity document scanning and local zero-knowledge proof generation, enabling users to verify identity attributes from passports, ID cards, and residence permits without revealing personal data. The application processes all identity information locally on the device to ensure complete privacy.

Alastria ID is an open-source digital identity framework based on W3C Verifiable Credentials standards, enabling self-sovereign identity management with GDPR compliance for individuals and organizations across blockchain networks.

SureCircle Identity Assurance is a cryptographic identity verification service for organizations facing AI impersonation risks. Credential holders verify themselves by signing a one-click identity challenge with their unique cryptographic key, producing audit-ready proof of identity in under 20 seconds. The service addresses executive deepfakes, vishing, and business email compromise by using provenance-based credentials that cannot be replicated by AI.

Proof of Intent is a blockchain-based authentication service that verifies whether a digital action was authorized by a human or initiated by an autonomous AI agent at the point of signing. The system uses idle smartphone capacity as a distributed witness network to validate transactions on a permissioned ledger. Telecom operators and enterprises use the service to detect AI-initiated transactions and fund customer loyalty programs from the economic value generated by network activity.