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

We empower animal advocates with research, analysis & strategies that maximize their effectiveness to reduce animal suffering.

We conduct essential research, maintain an online research library, and directly support advocates and organizations in their work to save lives. The range of data we offer helps our movement understand how people think about and respond to advocacy, providing advocates with the best strategies to inspire change for animals.

Our Original Studies are carefully selected, designed, and conducted to provide actionable and insightful data for the animal protection movement. Our research prioritization process helps us identify studies that have a high potential impact for animals, and our commitment to transparency and rigorous methodology ensures that our studies are of the highest quality. Our studies have been covered in hundreds of publications across animal advocacy circles as well as in mainstream media, and have been used by animal advocacy groups worldwide.

The Faunalytics Library is completely free, and houses summaries of over 4,000 peer-reviewed research articles, public opinion surveys, and blog posts offering deep analysis on every animal issue you can think of. It’s the world’s biggest collection of opinion and behavior research about animal issues, and it’s presented with an emphasis on effectiveness, readability, and useability. Sign up for our email alerts and you’ll get weekly or monthly updates on the latest research we cover, delivered straight to your inbox.

Get a comprehensive overview of a particular topic area by exploring our Faunalytics Fundamentals, a series that provides infographics and visualizations of data to help you get informed and stay informed. The Fundamentals series has everything you need to get started or update your knowledge in a familiar area, and the visuals are highly shareable beyond an advocacy audience.

Have a research question that you don’t know how to solve? Want to dive deep into a particular issue but don’t know where to start? Just ask us! Faunalytics’ Office Hours give you the opportunity to connect with us directly and get one-on-one help with research design, strategy, and general knowledge questions. We also engage in select partner projects with advocacy groups.

Faunalytics

FWI reduces the suffering of farmed fish by researching and executing evidence-based interventions in high-priority contexts.

The mission of Fish Welfare Initiative (FWI) is to reduce the suffering of farmed fish as much as possible. We do that specifically by researching and testing evidence-based welfare interventions, and then implementing them in high priority contexts. Our main implementation program right now focuses on collaborative farmer outreach in India to improve water quality and reduce stocking densities. As of this writing, this program currently works with about 100 farms (www.fwi.fish/farmers). FWI also invests significantly in research to identify and test more promising welfare improvements (www.fwi.fish/post/rnd-plans-2024).

Thanks to the support of all those who have donated, as of this writing FWI estimates that we have improved the lives of about 1.5M fish. You can learn more about our impact and how we came up with these numbers at www.fwi.fish/impact.

To learn more about our work, you can subscribe to our monthly in-depth newsletter at www.fwi.fish/news.

To learn about the value of a donation to FWI, as well as its pros and cons, see www.fwi.fish/donate.

Fish Welfare Initiative

A new initiative to advance forecasting and epistemics for the aim of improving the long term future of humanity.

We research systematic practices to specify and estimate the most important parameters for the most important or scalable decisions. Research areas include forecasting, epistemics, evaluations, ontology, and estimation. We emphasize technological solutions that can heavily scale in the next 5 to 30 years.

We believe that humanity’s success in the next few hundred years will lie intensely on its ability to coordinate and make good decisions. If important governmental and philanthropic bodies become significantly more effective, this will make society far more resilient to many kinds of challenges ahead.

Quantified Uncertainty Research Institute

Through research and community building projects, The Rethink Charity project collective elevates the effective altruism community

Rethink Charity projects invite curiosity from the wider public about how to do good, approaching movement building in effective altruism by supporting novel initiatives.

Rethink Charity is comprised of initiatives that facilitate interpersonal engagement from the bottom up. Each of our projects bring more people into the fold and engages those who are ready to get more involved.

Rethink Charity

Exists to end the greatest cause of suffering on the planet: the exploitation of animals for food.

Mercy For Animals exists to end the greatest cause of suffering on the planet: the exploitation of animals for food.

Mercy For Animals

New Roots Institute is a nonprofit empowering the next generation with knowledge and training to end factory farming.


Together, we can create a just and sustainable food system for all.
Factory farming is one of the most harmful industries, impacting the health of people, animals, and the planet. At New Roots Institute, we are strengthening one shared movement—the movement to end factory farming. By empowering the next generation with knowledge and training to do just that, the end is in sight.

Through interactive, high school and college lessons, we inspire critical thinking and dynamic discussions about the connections between industrial animal agriculture and current key issues impacting us all—like animal welfare, climate change and environmental sustainability, human rights, and personal and public health.

Through our Leadership Program, we offer fellowships for students motivated to dig deeper into the impacts, and solutions, of factory farming—while being trained in effective communication, advocacy, and leadership skills. Upon completing the fellowship, alumni go on—with our continued support—to develop and empower other leaders to create change in their communities toward our shared goal of ending factory farming.

New Roots Institute

We want to make life better for wild animals.

We are dedicated to finding evidence-backed ways to improve the lives of animals in the wild.

We depend on individual donors to help us make life better for wild animals. To a small nonprofit working hard on a big problem, your support is more crucial now than ever!

Wild Animal Initiative

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We are a nonprofit, so instead of charging fees we rely on the generosity of donors like you.