![Denis O'Leary](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Denis O'Leary
Director/Board Member at
CROWDSTRIKE HOLDINGS, INC.
Net worth: 104 M $ as of 31/05/2026
Profile
Currently, Denis J. O'Leary holds the position of Non-Executive Chairman of Fiserv, Inc. He is also on the board of CrowdStrike Holdings, Inc., The Warranty Group, Inc., CrowdStrike, Inc. and Ventiv Technology, Inc. In his past career he was Chief Information Officer & Finance Director at ChaseCom LP, Chief Information Officer & Treasurer at JPMorgan Chase & Co., Senior Advisor at The Boston Consulting Group, Inc., Managing Partner at Encore Financial Partners, Inc., Chairman of NYCE Payments Network LLC and Director at Intel Security Group. He received an undergraduate degree from LaSalle University, an undergraduate degree from the University of Rochester and an MBA from The Leonard N Stern School of Business.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 05/06/2026 | 74,960 ( 0.03% ) | 55 M $ | 31/05/2026 | |
| 11/12/2024 | 66,669 ( 0.36% ) | 49 M $ | 31/05/2026 |
Denis O'Leary active positions
| Companies | Position | Start |
|---|---|---|
| CROWDSTRIKE HOLDINGS, INC. | Director/Board Member | 01/12/2011 |
CrowdStrike, Inc.
 CrowdStrike, Inc. Information Technology ServicesTechnology Services Provides security technology services | Director/Board Member | - |
Ventiv Technology, Inc.
 Ventiv Technology, Inc. Packaged SoftwareTechnology Services Provides risk management information systems, enterprise risk management, insurance claims, billing and policy administration technology services | Director/Board Member | - |
Former positions of Denis O'Leary
| Companies | Position | End |
|---|---|---|
| FISERV, INC. | Chairman | 18/05/2022 |
Encore Financial Partners, Inc. | Corporate Officer/Principal | 01/02/2016 |
The Boston Consulting Group, Inc.
 The Boston Consulting Group, Inc. Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Corporate Officer/Principal | 01/01/2009 |
| JPMORGAN CHASE & CO. | Chief Tech/Sci/R&D Officer | 01/04/2003 |
ChaseCom LP
 ChaseCom LP Miscellaneous Commercial ServicesCommercial Services Provides customer contact center services | Director of Finance/CFO | 01/01/2003 |
Training of Denis O'Leary
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
93
1st degree connections
15
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 15 |
|---|---|
Fiserv, Inc.
 Fiserv, Inc. Miscellaneous Commercial ServicesCommercial Services Provides payments and financial technology solutions | Commercial Services |
Rochester Christian University
 Rochester Christian University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Intel Security Group
 Intel Security Group Packaged SoftwareTechnology Services Develops anti-virus software | Technology Services |
JPMorgan Chase & Co.
 JPMorgan Chase & Co. Major BanksFinance Provides banking, asset management, investment banking, credit card and mortgage services | Finance |
Hamilton State Bancshares, Inc.
 Hamilton State Bancshares, Inc. Regional BanksFinance Operates as bank holding company whose subsidiary functions a state bank | Finance |
CrowdStrike Holdings, Inc.
 CrowdStrike Holdings, Inc. Packaged SoftwareTechnology Services Develops CrowdStrike Falcon platform to detect threats and stop breaches | Technology Services |
The Boston Consulting Group, Inc.
The Boston Consulting Group, Inc. Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Commercial Services |
The Warranty Group, Inc.
 The Warranty Group, Inc. Multi-Line InsuranceFinance Provides warranty, underwriting, claims administration and marketing services | Finance |
NYCE Payments Network LLC
 NYCE Payments Network LLC Information Technology ServicesTechnology Services Develops and delivers electronic payments transferring networking solutions | Technology Services |
LaSalle University
 LaSalle University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
ChaseCom LP
ChaseCom LP Miscellaneous Commercial ServicesCommercial Services Provides customer contact center services | Commercial Services |
Encore Financial Partners, Inc. | |
CrowdStrike, Inc.
CrowdStrike, Inc. Information Technology ServicesTechnology Services Provides security technology services | Technology Services |
The Leonard N Stern School of Business
 The Leonard N Stern School of Business Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Ventiv Technology, Inc.
Ventiv Technology, Inc. Packaged SoftwareTechnology Services Provides risk management information systems, enterprise risk management, insurance claims, billing and policy administration technology services | Technology Services |
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