Symmetry
Software DevelopmentArizona, United States51-200 Employees
Symmetry provides payroll tax compliance infrastructure through APIs and onboarding software designed for payroll providers, HR tech platforms, and large employers. It does not process payroll itself but concentrates on the more complex segments of the payroll cycle—accurate tax calculations and withholding—to support automation and compliance. The company supports tax calculations for a substantial number of employees annually across the United States and Canada, including 64 million+ paychecks and 33 million+ tax forms. The customer base includes payroll providers, HR tech platforms, and large employers, with Symmetry's tools integrated into broader employer services. It is used by major platforms such as Gusto, UKG, ADP, and Paychex. The company is based in Scottsdale, Arizona, in the software development industry, offering a suite of tools for payroll tax processing that complements payroll services.