WorkOS vs. Auth0 vs. Clerk: The best auth platform for B2B SaaS in 2026

WorkOS, Auth0, and Clerk are prominent authentication and identity platforms for B2B SaaS products, each catering to different needs. WorkOS excels in serving enterprise-level clients by offering built-in features like Enterprise SSO, SCIM directory sync, audit logs, and a customizable admin portal, making it an ideal choice for companies targeting enterprise markets. Auth0, acquired by Okta, is a versatile platform capable of handling various authentication scenarios, including consumer identity and machine-to-machine authentication, but requires significant configuration for B2B multi-tenancy and can become costly due to its MAU-based pricing. Clerk, the latest entrant, focuses on providing an excellent developer experience with its pre-built UI components and integrations, particularly with Next.js and React, making it suitable for developer teams seeking quick implementation; however, it faces challenges in provider coverage and enterprise readiness. All three platforms have their pricing models, with WorkOS offering predictable costs based on connections and directory syncs, while Auth0 and Clerk use MAU-based pricing, which can escalate with larger user bases. For B2B SaaS teams, WorkOS is recommended for enterprises, Auth0 for those with complex identity needs, and Clerk for teams emphasizing developer speed and simplicity.