This article analyses service quality in nonprofit organizations. Based on a literature review and a case study, it discusses the differences in applying the service quality concept (customer expectations X perception) in the nonprofit sector, in comparison to for-profit companies. It concludes that nonprofits don't present a single type of customer, but several stakeholders playing that role. ... [Show full abstract] Each of those actors has different expectations towards the organization and presents different criteria when evaluating service quality. It should also be pointed that, due to values such as "justice" and "solidarity", essential in that type of organization, the service deliver process assumes special importance in nonprofits and, sometimes, become as or even more important than the results obtained.