Dennis Byrnes

General Counsel at ACI WORLDWIDE, INC.

63 year

Technology Services

Consumer Services

Finance

Profile

Dennis Patrick Byrnes currently works at S1 Corp., as Chief Executive Officer, Applied Communications, Inc. U.K.
Holding Ltd., as Director from 2003, and ACI Worldwide, Inc., as Executive Vice President & General Counsel from 2023.
Mr. Byrnes also formerly worked at Official Payments Holdings, Inc., as Chief Executive Officer, ACI Payments, Inc., as President, Secretary & Director, ACI Global Ltd., as Secretary & Director, Bank One Corp., as Vice President & Senior Counsel from 2002 to 2003, Sterling Commerce (America), Inc., as General Counsel from 1996 to 2001, and Baker & Hostetler LLP, as Attorney from 1991 to 1996.
Mr. Byrnes received his Masters Business Admin degree from Xavier University, undergraduate degree from Case Western Reserve University, and graduate degree from Michael E.
Moritz College of Law.

Dennis Byrnes active positions

Companies	Position	Start
ACI WORLDWIDE, INC.	General Counsel	31/05/2003
S1 Corp. S1 Corp. Information Technology ServicesTechnology Services Operates as security solutions company	Chief Executive Officer	11/02/2012
Applied Communications, Inc. U.K. Holding Ltd. Applied Communications, Inc. U.K. Holding Ltd. Packaged SoftwareTechnology Services Develops computer software	Director/Board Member	29/09/2003

All active positions of Dennis Byrnes

Former positions of Dennis Byrnes

Companies	Position	End
Bank One Corp. Bank One Corp. National commercial bank	General Counsel	31/05/2003
Sterling Commerce (America), Inc. Sterling Commerce (America), Inc. Packaged SoftwareTechnology Services Provides business integration solutions	General Counsel	31/10/2001
Baker & Hostetler LLP Baker & Hostetler LLP Miscellaneous Commercial ServicesCommercial Services Provides legal services	Corporate Officer/Principal	31/12/1995
ACI Global Ltd. ACI Global Ltd. Develops software	Director/Board Member	-
ACI Payments, Inc. ACI Payments, Inc. Regional BanksFinance Provides payment services	President	-

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Linked companies

Private companies	12
Bank One Corp. Bank One Corp. National commercial bank
ACI Worldwide, Inc. ACI Worldwide, Inc. Packaged SoftwareTechnology Services Installs software products and services for financial institutions	Technology Services
Sterling Commerce (America), Inc. Sterling Commerce (America), Inc. Packaged SoftwareTechnology Services Provides business integration solutions	Technology Services
Official Payments Holdings, Inc. Official Payments Holdings, Inc. Information Technology ServicesTechnology Services Provides biller direct electronic payment solutions	Technology Services
ACI Payments, Inc. ACI Payments, Inc. Regional BanksFinance Provides payment services	Finance
S1 Corp. S1 Corp. Information Technology ServicesTechnology Services Operates as security solutions company	Technology Services
Baker & Hostetler LLP Baker & Hostetler LLP Miscellaneous Commercial ServicesCommercial Services Provides legal services	Commercial Services
Xavier University Xavier University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Case Western Reserve University Case Western Reserve University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Applied Communications, Inc. U.K. Holding Ltd. Applied Communications, Inc. U.K. Holding Ltd. Packaged SoftwareTechnology Services Develops computer software	Technology Services
Michael E. Moritz College of Law Michael E. Moritz College of Law Functions as a College/University
ACI Global Ltd. ACI Global Ltd. Develops software