Guy Chiarello
Guy Chiarello is Chief Operating Officer (COO) at Fiserv. Coverage on FF News includes 2 stories since 2022, most recently "Fiserv Collaborates with Microsoft to Accelerate AI-Driven Innovation" (8 January 2026).
Guy Chiarello is Chief Operating Officer (COO) at Fiserv. Coverage on FF News includes 2 stories since 2022, most recently "Fiserv Collaborates with Microsoft to Accelerate AI-Driven Innovation" (8 January 2026).