Cotter - One-click phone number login and checkout
Omada Identity - Omada Identity is an advanced-level identity management software that is used to protect your organization from risks and helps you to take the action against form those risks and threats.
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.
MojoAuth - Allow users to login without passwords
SuperTokens - Open Source User Authentication - An Alternative to Auth0 / Firebase Auth / AWS Cognito
GateKeeper Proximity - Proximity passwords for PC, Mac, websites, and desktop applications. Get instant authentication with GateKeeper wireless, hands-free security key. Anti-phishing, secure, passwordless, proximity-based wireless access token for computers/websites.