With thousands of organizations working on animal welfare globally, understanding how to evaluate their effectiveness helps donors direct resources where they will do most good.
Effective altruism approaches to animal welfare highlight enormous variation in cost-effectiveness between different interventions and organizations. Organizations working to improve conditions for the most numerous animals at lowest cost often achieve far more welfare impact per dollar than organizations focused on companion animal rescue. This does not mean companion animal welfare is unimportant, but it suggests that donors who want to maximize welfare impact should research evidence-based recommendations. Animal Charity Evaluators provides free, rigorous analysis to help.