Veriff - Smart and scalable identity verification.
NoPass.me - Open-source identity verification
Acuant - Acuant provides Identity Verification to instantly reduce fraud and increase revenue.
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.
Mitek Mobile Verify - Mitek Mobile Verify is an Identity verification solution that delivers I.D.
Civic Token - Access to identity verification via the blockchain