This working paper employs research undertaken by the Global Detention Project (GDP)—an inter-disciplinary research project based at the Graduate Institute of International and Development Studies—to help situate the phenomenon of the privatization of immigration detention within a global perspective. Part of the difficulty in assessing this phenomenon is that our understanding of it is based largely on experiences in English-speaking countries. This working paper endeavors to extend analysis of this phenomenon by demonstrating the broad geographical spread of privatized detention practices across the globe, assessing the differing considerations that arise when states decide to privatize, and comparing the experiences of a sample of lesser known cases.