1. 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.

  2. Enterprise-grade identity management for all your apps, users & devices

  3. On-demand SSO, directory integration, user provisioning and more

  4. Auth0 is a program for people to get authentication and authorization services for their own business use.

  5. One directory for employee information across IT, HR, legal, finance and facilities.

  6. Provider of enterprise-class Single Sign-On (SSO), identity and access management, and business password management for cloud-forward companies and teams.

  7. Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …

  8. OAuth that just works. Integrate 100+ OAuth providers in minutes.

  9. Satellizer is a nd-to-end, token-based authentication module for AngularJS

  10. Ruby on Rails client for authentication.

  11. Salesforce Identity streamlines the user access with a single login and helps to discover the power of a single, trusted identity for employees, partners, and customers.

  12. Cloud Identity Service is a complete Identity and Access Management as a Service (IDaaS) that enables the user to adopt cloud for the entire IAM system.