Veriff - Smart and scalable identity verification.
NoPass.me - Open-source identity verification
Onfido - Onfido is the data-driven platform for intelligent background checking.
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.
Sumsub - One verification platform to secure the whole user journey
Civic Token - Access to identity verification via the blockchain