Faith-based community organizing in the United States has emerged as one of the most effective ways to rebuild democratic life in urban communities. Scholars have argued that the success of modern community organizing lies in its ability to engage the social capital embedded in religious congregations. I examine this claim through a comparatively set case study of the effort to apply an American community organizing strategy in Britain. Using interviews, observations, and documentary sources, I analyze the experience of the British Citizens Organizing Foundation (COF), which is affiliated to the U.S.-based Industrial Areas Foundation. I find that the COF has attained more national influence than its American counterpart, but its local foundations remain much weaker. The relative weakness of faith-based social capital in Britain only partly explains this result. The orientations of religious institutions toward political engagement also matter, and so does the relative power of local versus national political institutions. I argue for bringing a more institutional approach to our theoretical understanding of community organizing and of the role of social capital in revitalizing democratic life more broadly.Faith-based community organizing has become recognized as an effective way to generate political participation and empower low-income communities of color in the United States (Warren, 2001;Wood, 2002). This American style organizing strategy is beginning to be tried outside of the United States, in places like Germany, South Africa, Central America, and Canada. Most of these efforts are quite young and have not been the subject of research. 1 In this article I present a case study of the longest running of such experiments, that is, the organizing efforts of the Citizens Organising Foundation (COF) in Britain, which started in the late 1980s. I set out to discover how an American organizing strategy has worked in the very different social and political context of Britain. As I show in this article, a comparative case study can yield important lessons for our understanding of community organizing and of the political engagement of faith-based social capital more broadly.