We are a think tank dedicated to figuring out the best ways to make the world a better place.

Rethink Priorities is a research organization that conducts critical research to inform policymakers and major foundations about how to best help people and nonhuman animals in both the present and the long-term future.

Our research spans everything from animal welfare to the threat of nuclear war. We explore neglected but promising areas to improve the world and try to further build the community of researchers working on understanding how to do this most effectively.

If you'd like to support one of our fiscally sponsored projects (e.g. Epoch), you can give via Every.org, and let us know how to allocate your gift at info@rethinkpriorities.org.

Rethink Priorities

Animal Charity Evaluators helps people help the most animals.

Animal Charity Evaluators (ACE) is a 501(c)(3) nonprofit registered in the United States with a globally distributed team dedicated to impactful animal advocacy. Our mission is to find and promote the most effective ways to help animals. We work toward that mission by evaluating charities, sharing our findings, awarding grants to organizations and promising projects, and fundraising for our recommended charities and grantees. Our organization opposes all systems of oppression and recognizes that they are connected and mutually reinforcing. Ultimately, our vision is a world in which no individual is given less than full moral consideration on the basis of any morally irrelevant feature of their identity, including species membership.

ACE is proud to be considered a leader in the effective animal advocacy movement. Our research comparing the different approaches to reducing the suffering of animals has led to rigorously reviewing charities that work to end factory farming and create meaningful change for farmed and wild animals. Through our Recommend Charity Fund, we have raised and distributed $8.1M to our effective recommended charities. Our Movement Grants program has awarded $5.3M to promising animal advocacy projects around the globe. Since we began tracking this metric in 2014, we estimate that ACE has helped to influence nearly $60M within the animal advocacy movement.

Thanks for helping ACE help animals!

Animal Charity Evaluators

Malaria Consortium

The Top Charities Fund supports the highest-priority funding needs among our top charities.

We find and recommend outstanding giving opportunities and publish our research to help donors give more effectively and with greater confidence.

All donations here support our Top Charities Fund. Donations to the Top Charities Fund are granted on a rolling basis to support cost-effective funding opportunities at our top charities. We use our latest research to grant the funds to the top charity (or charities) where we believe they’ll do the most good.

Learn more and view past grants at https://www.givewell.org/top-charities-fund


Photo caption: At health centers in Sierra Leone supported by Helen Keller Intl, mothers who bring their children in for twice-yearly vitamin A supplemention can also receive comprehensive counseling about birth control options that are available to them free of charge. Combining family planning and children's healthcare services benefits both mother and child. 2019.

Top Charities Fund

We search for the charities that save or improve lives the most per dollar.

Our goal is to produce the world's top research on where to give. Free, for everyone.

We recommend a small number of charities that do an incredible amount of good. 

If you would like to donate to our giving funds or individual top charities, please see our projects below. You can donate here or on the Unrestricted Fund page below to make an unrestricted gift to GiveWell to support the full spectrum of our grantmaking and underwrite our ability to continue doing what we do.

GiveWell

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