FusionAuth is a Customer Identity and Access Management (CIAM) platform that provides authentication and authorization services for applications. The company offers a hybrid deployment model that allows organizations to download and self-host the software on their own infrastructure or use FusionAuth's hosted service on dedicated resources. The platform is built with an API-first architecture designed for developer integration. The company recently acquired Permify to unify authentication and authorization capabilities in a single platform. FusionAuth provides features including single sign-on (SSO), user management, multi-factor authentication, and identity provider integrations. The platform supports native integration with CI/CD pipelines and tools like Terraform. FusionAuth operates on a single-tenant architecture model, avoiding multi-tenant SaaS infrastructure. The platform offers customizable login screens and user interfaces without restrictions on metadata or branding. The company provides multiple pricing tiers ranging from a free Community edition to Enterprise plans with 24x7 support and SLA guarantees. The platform has achieved ISO 27001 certification and has been recognized by KuppingerCole as a RisingStar in the CIAM space. FusionAuth serves customers ranging from startups to Fortune 500 companies across various industries requiring customer identity management capabilities.