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
Sam Mar
Executive Vice President of Communications & External Affairs
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
Jeremy Travis
Executive Vice President of Criminal Justice
