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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Eboni Graham
Social Media Manager
Dina Grove
Senior Counsel
Lauren Hardy
Grants Manager
Dylan Hayre
Director of Criminal Justice (he/him)
David Hebert
Communications Manager
Chris Hensman
Director of New Programs
Alexa Herzog
Criminal Justice Manager
Jeffrey Holliday
Advocacy Manager
Juliene James
Vice President of Criminal Justice (she/her)
Sebastian Johnson
Advocacy Chief of Staff
Erin Jones
Health Care Analyst
Nadege Joseph
New York Office Manager and Lead Executive Assistant
Hannah Kahn
Vice President of Data, Systems, and Technology
Walter Katz
Vice President of Criminal Justice
Juliana Keeping
Communications Manager
Hunter Kellett
Health Care Director, Payor Reform
Cybele Kotonias
Director of Criminal Justice
Marc Krupanski
Director of Criminal Justice - Policing
Emma Liebman
Health Care Analyst (she/her)
Lindsey Lovel Heidrich
Criminal Justice Manager, Projects (she/her)
Victoria (Torie) Ludwin
Communications Manager (she/her)
Kevin Madden
Executive Vice President of Advocacy
Sam Mar
Executive Vice President of Communications & External Affairs
Alexius Marcano
Manager of Criminal Justice Research
Christopher McClure
Finance Manager
Morgan McGrath
Health Care Analyst
Kelly McManus
Director of Higher Education
Roshni Mehta
Advocacy Analyst
Rhiannon Meyers Collette
Communications Manager
Mark E. Miller
Executive Vice President of Health Care
