Meet our team
Arnold Ventures is a group of more than 100 passionate people from all walks of life who feel a deep urgency to help people in need. Laura and John established the Laura and John Arnold Foundation in 2010 with a straightforward mission: to improve lives through evidence-based solutions. As co-founders, Laura and John actively engage in the organization’s overall direction and daily execution. Laura is an attorney and a former oil company executive. John is an investor. They have three children and reside in Houston, Texas.
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Roxanne Almaraz
General Counsel and Corporate Secretary

Laura and John Arnold
Founders and Co-Chairs

Elizabeth Banks
Chief Financial Officer and Treasurer

George Callas
Executive Vice President of Public Finance

Hannah Kahn
Chief Information Officer

Mark E. Miller
Executive Vice President of Health Care

Jennifer Nelsen
Chief People and Culture Officer (she/her)

Kelli Rhee
President and Chief Executive Officer

Kirby Smith
Executive Vice President of Programs