ACE’s mission is to find and promote the most effective ways to help animals. ACE pursues three main programs: Research and Evaluation, Fundraising and Grantmaking, and Education and Outreach.
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.
IPA discovers and promotes effective solutions to global poverty problems.
GiveWell tries to identify outstanding giving opportunities and publishes the full details of its analysis.