OneLogin - On-demand SSO, directory integration, user provisioning and more
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
AuthAnvil - AuthAnvil software is an integrated identity and access management tool designed to help IT managers service their networks, infrastructure network, and ensure that devices are safe and secure at all times. Read more about AuthAnvil.
Spring Security - The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...
TeamPassword - TeamPassword helps you manage and share access to the apps, services, and tools your team needs to keep projects moving.
Firebase Authentication - Application and Data, Application Utilities, and User Management and Authentication