Best SSO and MFA Providers for B2B SaaS in 2026
Blog post from Clerk
In 2026, the evaluation of the best Single Sign-On (SSO) and Multi-Factor Authentication (MFA) providers for B2B SaaS reveals Clerk and WorkOS as leading options, with Clerk offering a comprehensive SDK that integrates authentication, enterprise SSO, MFA, and billing. It supports key protocols like SAML 2.0, OIDC, and EASIE, and provides pre-built React components, while its SCIM directory sync reached full general availability, enhancing its enterprise readiness. WorkOS is noted for its wide identity-provider coverage and self-serve Admin Portal, which facilitates enterprise client onboarding without extensive engineering involvement. Both providers cater to enterprise security requirements, including compliance with standards such as SOC 2 and HIPAA, which are increasingly demanded by enterprise buyers alongside SSO and MFA capabilities. Clerk's pricing model is based on Monthly Retained Users, offering predictable costs with a declining scale for additional enterprise connections, whereas WorkOS uses a per-connection pricing model. The landscape also highlights the emergence of passkeys as a phishing-resistant authentication method, favored for their security benefits, with 87% of surveyed US and UK workforces planning to implement them. AI agents now require machine-to-machine credentials, reflecting the evolving needs of authentication systems.
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