Tier Technologies, Inc. provides electronic payment and other transaction processing services to federal, state, and local government, as well as other public sector customers in the United States. It offers electronic payment processing options, including payment of taxes, fees, and other obligations owed to government entities, educational institutions, utilities, and other public sector customers. The company also provides call center interactive voice response systems and support services, including customization, installation, and maintenance; certain health and human consulting services to state agencies; and services to support the design, development, and implementation of pension applications for state, county, and city governments. Tier Technologies was founded in 1991 and is headquartered in Reston, Virginia.