When it comes to funder collaboratives, is the whole truly greater than the sum of its parts? Can foundations make a bigger impact with grant dollars by working together than by going it alone? Yes, grantmakers say, as long as members define their goals, set clear operational guidelines, and work from the start to make the collaborative function well for grantees. In this guide, contributors share strategies for structuring a collaborative to fit its purpose, building strong relationships and resolving conflicts, and figuring out if the collaborative you're in is working. Contributors also offer ample proof that collaboratives are leading the field in bringing the voices of nonfunders - grantees, intended beneficiaries, experts, and others - into the process of making grants.