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National Partnership Brings Unified Voice to Pretrial Justice Movement

Arnold Ventures has launched the National Partnership for Pretrial Justice, a collective supported by $39 million in grants and one of our most significant investments in criminal justice reform to date. It combines research, policy development, and advocacy to implement and evaluate pretrial justice reforms across the country.

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'This isn't capitalism. This is a form of oppression.'

Laura and John Arnold talk to NBC Nightly News about the broken drug market and an industry that has co-opted the political process.


Arnold Ventures’ core objective is to maximize opportunity and minimize injustice.

Arnold Ventures is a philanthropy dedicated to tackling some of the most pressing problems in the United States. We invest in sustainable change, building it from the ground up based on research, deep thinking, and a strong foundation of evidence. We drive public conversation, craft policy, and inspire action through education and advocacy.

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Straight Talk on Evidence

No spin, just evidence

We seek to distinguish credible findings of program effectiveness from the many others that claim to be but aren’t, through an easy-to-read, no-spin digest of recent program evaluation findings.

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We Are Committed to Lowering Drug Prices. John Arnold Explains Why.

Health care has every kind of “market failure that exists,” our co-founder John Arnold tells the Forbes Healthcare Summit 2018. Watch the full conversation on our approach to philanthropy, our work in health policy, and why Congress must act now on drug pricing.

Our People

Meet the Founders