6 Auth Platforms With Enterprise SSO Support for B2B SaaS in 2026

Enterprise Single Sign-On (SSO) is a critical feature for B2B SaaS products, enabling users to log in via their existing identity provider like Okta or Google Workspace, which is crucial for passing enterprise IT security reviews and simplifying user lifecycle management. The text compares six authentication platforms—WorkOS, PropelAuth, Frontegg, Descope, Clerk, and Kinde—each offering unique features for implementing Enterprise SSO. PropelAuth stands out for its exclusive focus on B2B products and a unique Bring Your Own Auth option, allowing integration without overhauling existing systems, with predictable costs due to no per-connection fees. WorkOS offers API-focused tools with per-connection pricing, making it suitable for enterprise-first teams, while Frontegg provides a comprehensive platform but with opinionated UI components. Descope offers a low-code interface, appealing to teams favoring visual configuration, though its higher cost may be restrictive. Clerk is tailored for React environments, but its pricing and organizational model may require workarounds for complex use cases. Kinde provides a broad auth solution, ideal for early-stage teams without per-connection fees, though its configurability for complex needs might be limited. The choice of platform depends on product maturity and specific enterprise requirements, with PropelAuth recommended for those prioritizing B2B needs and cost predictability.

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