NoPass.me - Open-source identity verification
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Velix.ID - Frictionless Identity verification through Blockchain
Veriff - Smart and scalable identity verification.
Identity Verification Tooling - Identity verification software for your in-house KYC team
Invoid - Enabling KYC automation & identity verification in India