This project would not have been possible without the initiative, genius and participation of a broad community of individuals and institutions. To start, the authors wish to thank the following members of the project advisory group who lent their invaluable expertise and guidance to the study’s design: Heather Alexander of Tilburg University, Laura Bingham of Open Society Justice Initiative, Karina Clough of United Stateless, Ivonne Garza of the Inter-American Commission of Human Rights, Catherine Harrington of Women’s Refugee Commission, Nikolai Levasov of United Stateless, Chris Nash of the European Network on Statelessness, Francisco Quintana of the Americas Network on Statelessness, Bryan Roberts of the Institute for Defense Analyses, Katherine Southwick of the George Mason University’s School of Conflict Analysis and Resolution, and Vicky Virgin from the NYC Mayor’s Office for Economic Opportunity. The study also benefitted significantly from feedback on the initial profiles of potentially stateless populations in the United States by Heather Alexander, David Baluarte of Washington and Lee University School of Law, Catherine Harrington, and Nikolai Levasov. The authors also wish to thank Dr. Jamie Winders of Syracuse University, Meredith Linsky of the American Bar Association, Jeanne Atkinson formerly of the Catholic Legal Immigration Network, Inc, and Mark von Sternberg of Catholic Charities Community Services of the Archdiocese of New York for their trenchant input on the organizational online survey. The authors also thank Elizabeth Davis of Syracuse University for her superb work during the Institutional Review Board application process and, in particular, for her contributions to creating the organizational online survey, conducting interviews with stateless persons, and assisting in the development of the interview instrument. We also thank Dr. Jamie Winders for her overall guidance and support on the study. The authors also wish to acknowledge the excellent work of former CMS interns, including Jacqueline Altamirano, Christina Auguste, Meagan Beckmeyer, Hayk Esaghoulyan, Marike Heesch, Samantha Kunin, Lucy McAuliffe and Nikhita Mendis, who assisted with transcriptions and outreach to organizations and service providers during the project’s data collection stage. They are also grateful to Jeffrey Sharlein, who served as a consultant in the early stages of the project, working on profiles of populations with potentially stateless members or persons potentially at risk of statelessness. The authors also thank the community-based organizations and legal service providers that provided their knowledge of statelessness with us by participating in the project’s online survey. Above all, the authors wish to express their profound gratitude to the stateless individuals who shared their stories, challenges and aspirations in the hope that this would lead a greater understanding of and commitment to responding to this problem in an effective and humane way and in accordance with international law.