B2B Authentication Provider Comparison: Features, Pricing & SSO Support (2026)

In 2026, enterprise SaaS buyers expect Single Sign-On (SSO) and SCIM support as default features, with many enterprise security teams rejecting products lacking these capabilities. Identity infrastructure has become essential for B2B SaaS platforms, with most companies now relying on specialized identity providers rather than building authentication systems internally. Leading providers like Auth0, Okta, WorkOS, and SSOJet offer varied authentication solutions, with some focusing on complete identity platforms and others on specific enterprise SSO integrations. Key trends shaping the authentication market include the growth of passwordless authentication, the shift towards zero-trust security models, and the expansion of enterprise identity integrations. As companies prioritize secure access management, choosing the right authentication platform is crucial for security, sales, and scalability, with per-connection pricing models often favored for B2B SaaS enterprises. The future of authentication is expected to emphasize passkey authentication, identity as a core security component, and decentralized identity systems.