This article discusses the importance of using Single Sign-On (SSO) providers for enterprise customers and provides a list of the best 5 SSO providers in 2024. It explains why developers should choose an SSO provider instead of building their own, highlighting benefits such as reduced complexity, increased security, multi-provider support, economical deployment, and reduced downtime. The article also outlines what to look for when choosing an SSO provider, including ease of integration, sensible pricing, scalability, and additional features. Finally, it presents the top 5 SSO providers: WorkOS, Frontegg, Auth0, OneLogin Secure, and Keycloak, providing details on their pros, cons, and pricing models.