FusionAuth
Software DevelopmentColorado, United States51-200 Employees
FusionAuth is a software development company headquartered in Broomfield, Colorado 80021, United States, with an employee count in the 51-200 range. It provides a downloadable Customer Identity and Access Management (CIAM) solution for developers, featuring a hybrid deployment model that supports diverse pipelines and single-tenant deployment. The platform includes login, registration, SSO, MFA, social login, and authorization capabilities. The company maintains the fusionauth.io website and operates in the software development industry. In 2026, FusionAuth announced the acquisition of Permify to form FusionAuth FGA by Permify, released version 1.65.0, and disclosed leadership appointments including Dayna Rothman as CMO and David Hayes as Head of Product.