Founder Profile
Leslie M. Muma
Last reviewed: October 2026 · By Swet Parvadiya
Who is Leslie M. Muma?
Leslie M. Muma is a founder of Fiserv, Inc., which was founded in 1984 with George D. Dalton.
- Company founded
- Fiserv, Inc.
- Founded
- 1984
- Co-founders
- George D. Dalton
Background
Leslie Muma ran Sunshine State Systems, a Tampa, Florida bank data processing business, before combining it with George Dalton's Milwaukee operation to form Fiserv in 1984.
Founding Story
Leslie M. Muma is a co-founder of Fiserv. He led the company's Florida operations after the 1984 merger, served as president for many years and later succeeded George Dalton as CEO, leading Fiserv until Jeff Yabuki took over in 2005. He oversaw much of the acquisition-led expansion that made Fiserv a national processor. (Exact birth year remains publicly undisclosed).
Sources
This profile does not yet cite a source specific to Leslie M. Muma. The sources below document the company company rather than the person, so check them against the claims above.
- Fiserv Reports Fourth Quarter and Full Year 2025 Results (Fiserv, Inc.)
- Fiserv Reports Second Quarter 2026 Results (Fiserv, Inc.)