Keycloak - Open Source Identity and Access Management for modern Applications and Services.
OneLogin - On-demand SSO, directory integration, user provisioning and more
CAS - Apereo CAS - Enterprise Single Sign On for the Web
TeamPassword - TeamPassword helps you manage and share access to the apps, services, and tools your team needs to keep projects moving.
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Teramind - Teramind provides a user-centric security approach for monitoring.