Keycloak - Open Source Identity and Access Management for modern Applications and Services.
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
CAS - Apereo CAS - Enterprise Single Sign On for the Web
SolarWinds Service Desk - An IT service management (ITSM) solution that understands what it takes to successfully manage your employee services. Try Solarwinds Service Desk for free!