The 5 best AWS Cognito alternatives for B2B SaaS in 2026
Blog post from WorkOS
Amazon Cognito is a common choice for authentication within the AWS ecosystem due to its seamless integration with AWS services and a free tier for up to 50,000 monthly active users. However, it often proves inadequate for B2B SaaS applications as teams encounter issues like lack of native multi-tenancy, limited enterprise SSO support, rigid UI customization, unpredictable pricing, and strong AWS lock-in. As these constraints become more apparent, engineering teams seek alternatives that better address these challenges. Among the top alternatives, WorkOS stands out for its enterprise-ready features like organization-native multi-tenancy, self-service SSO configuration, and SCIM directory sync, making it ideal for B2B SaaS teams transitioning from Cognito. Other alternatives like Auth0, Keycloak, SuperTokens, and FusionAuth offer varying degrees of flexibility, control, and support, catering to different needs and technical capabilities. Each solution has its trade-offs, with WorkOS offering a straightforward path to enterprise authentication readiness, aligning costs with revenue, and minimizing the need for custom development.