Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
PacketFence - PacketFence is a Free and Open Source network access control (NAC) system.
Spring Security - The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...
Keycloak - Open Source Identity and Access Management for modern Applications and Services.
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.
Aiwifi.io - Smart Wifi for Smart Businesses. Connecting the physical with the digital world.