MILWAUKEE — Fiserv has named Takis Georgakopoulos as chief executive officer after Mike Lyons stepped down to take the top job at Truist Financial, ending a tenure of just over a year leading one of Wisconsin’s largest financial technology companies.

Georgakopoulos, who joined the company in late 2024 and most recently served as co-president overseeing technology and merchant solutions, assumed the role effective immediately. He also joined the company’s board of directors.

“Takis is an exceptional leader with deep expertise in technology, payments, and financial services,” Fiserv Chairman Gordon Nixon said in a statement. “His strategic vision, strong client focus, and track record of execution position him well to lead Fiserv into its next chapter.”

Lyons is departing Fiserv to become CEO of Truist Financial, according to the company’s announcement Monday.

Fiserv said the leadership transition followed a board review process and reflects its focus on continuity in its payments and digital banking operations.

MarketWatch reported that Fiserv shares fell roughly 71% during Lyons’ time as chief executive. The company’s stock declined further following news of his departure.

Fiserv reaffirmed its previously issued 2026 financial outlook.

Founded in Brookfield in 1984, Fiserv grew from a regional financial services technology firm into a global payments and banking technology company. It relocated its headquarters from suburban Brookfield to downtown Milwaukee in 2024 as part of a broader expansion effort supported by state and local development officials.

The company employs about 38,000 people worldwide, according to its most recent corporate disclosures, and provides payment processing, digital banking and account services to financial institutions and merchants in more than 100 countries.

Georgakopoulos brings more than two decades of experience in financial services and technology leadership roles. Fiserv said he will oversee the company’s global operations and strategy as it continues to expand its payments and software platforms.

Fiserv is headquartered at 600 N. Vel R. Phillips Ave. in Milwaukee and remains one of Wisconsin’s largest publicly traded companies.

Sources:
• Fiserv leadership transition announcement: https://investors.fiserv.com/news-releases/news-release-details/fiserv-announces-leadership-transition
• Fiserv company information: https://www.fiserv.com
• MarketWatch reporting on Lyons’ tenure and stock performance: https://www.marketwatch.com/story/fiserv-ceo-flees-after-presiding-over-71-stock-drop-in-his-short-tenure-b92b9270