Funders can play a proactive role in helping to fill the gap between funders' expectations and nonprofits' ability to evaluate grant results. Using a partner-centered design, Johnson & Johnson piloted an evaluation capacity-building initiative that supported eight grantees in strengthening their ability to measure and use findings concerning health-related outcomes, by focusing on key evaluation challenges identified by the grantees. Grantees' approaches to capacity building naturally grouped around the areas of evaluation- framework development, data-systems strengthening, and staff training. Through individualized projects, grantees increased their ability to both do and use evaluation. This article describes the design, implementation, and results of a participatory, nonprofit-partner-centered evaluation capacity- building initiative, and shares learnings from the perspectives of both the corporate funder and the nonprofit participants.