This study investigates the practice of NGO (nongovernment organizations)–donor relationships in a geographically isolated community in Alaska and explores the role of social capital in NGO sustainability. We employ the following parameters to apply social capital concepts to the needs of practitioners: study design centered on variables that are relevant for practitioners, nonlinear production of knowledge, attention to specifics of the context within which agents operate, and transfer of knowledge through the practitioners’ frame of reference. This study reveals that NGOs’ bonding social ties are of primary importance for assuring active donor commitment, while bridging ties serve to secure continuing commitment and support from passive donors. The structural, relational, emotional, and behavioral social capital dimensions shape both
bonding and bridging ties, though they differ in their nature. Active donor commitment is increased by strengthening and extending the circle of bonding ties.