Thomas W. Warsop III joined the ACI Worldwide Board in 2015, became non-executive Chairman in June 2022, and was appointed President and Chief Executive Officer effective June 1, 2023. He has an extensive background in payments and financial services, having led portfolio companies for private-equity firms (including One Call Care Management, York Risk Services Group and The Warranty Group) and served as Group President at Fiserv, Inc. from 2007 to 2012. Earlier he spent 17 years at Electronic Data Systems in various senior roles, and he holds a BBA in Finance from Southern Methodist University.